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Biography
Laurence Katznelson, MD received his medical degree from the University of California, Los Angeles and performed his internship and residency in Internal Medicine at the Hospital of the University of Pennsylvania, Philadelphia. He then performed a fellowship in Endocrinology and Metabolism at the Massachusetts General Hospital, Boston. Dr. Katznelson is a Professor of Neurosurgery and Medicine (Endocrinology)at Stanford University School of Medicine. At Stanford University, he is the Associate Dean of Graduate Medical Education and the Chair of the GME Committee. Dr. Katznelson is the Medical Director of the Pituitary Center at Stanford Hospital and Clinics. He is the medical director of the Pituitary Stanford, Stanford HealthCare. In endocrinology, Dr. Katznelson has a long standing clinical and research interest in the pathophysiology and treatment of pituitary disease.
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Professional Summary
Professional Education
- Board Certification: American Board of Internal Medicine, Endocrinology, Diabetes and Metabolism (2013)
- BS, U.C., Berkeley, Genetics (1981)
- MD, UC, Los Angeles, Medicine (1985)
- Internship: Hospital of the University of Pennsylvania (1986) PA
- Residency: Hospital of the University of Pennsylvania (1989) PA
- Fellowship, Massachusetts General Hospital, MA, Endocrinology and Metabolism` (1992)
- Board Certification: American Board of Internal Medicine, Internal Medicine (1988)
- Board Certification, Endocrinology, Diabetes and Metabolism, American Board of Internal Medicine (2013)
Honors & Awards
- 2017 Laureate Award for Educator of the Year, The Endocrine Society (2017)
- Best Doctors in America, Best Doctors (2005-)
- H. Jack Baskin, MD, Endocrine Teaching Award, American Association of Clinical Endocrinologists (2015)
Administrative Appointments
- Associate Dean of Graduate Medical Education, Stanford School of Medicine (2014 - Present)
- Chair, Graduate Medical Education Committee, Stanford Healthcare (2014 - Present)
- Chair, Special Programs Committee, Endocrine Society (2008 - 2011)
- Director, Endocrinology Fellowship Training Program, Stanford Healthcare (2005 - 2014)
- Medical Director, Pituitary Center, Stanford Healthcare (2004 - Present)
Publications
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Treatment of acromegaly with the growth hormone-receptor antagonist pegvisomant
Trainer, P. J., Drake, W. M., Katznelson, L., Freda, P. U., Herman-Bonert, V., van der Lely, A. J., … Davis, R. J. (2000). Treatment of acromegaly with the growth hormone-receptor antagonist pegvisomant. NEW ENGLAND JOURNAL OF MEDICINE, 342(16), 1171–1177. -
Hypogonadism in patients with acromegaly: data from the multi-centre acromegaly registry pilot study
Katznelson, L., Kleinberg, D., Vance, M. L., Stravou, S., Pulaski, K. J., Schoenfeld, D. A., … Klibanski, A. (2001). Hypogonadism in patients with acromegaly: data from the multi-centre acromegaly registry pilot study. CLINICAL ENDOCRINOLOGY, 54(2), 183–188. -
Hypothalamic/pituitary function following high-dose conformal radiotherapy to the base of skull: Demonstration of a dose-effect relationship using dose-volume histogram analysis
Pai, H. H., Thornton, A., Katznelson, L., Finkelstein, D. M., Adams, J. A., Fullerton, B. C., … Munzenrider, J. E. (2001). Hypothalamic/pituitary function following high-dose conformal radiotherapy to the base of skull: Demonstration of a dose-effect relationship using dose-volume histogram analysis. INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 49(4), 1079–1092. -
Somatostatin receptor-specific analogs: Effects on cell proliferation and growth hormone secretion in human somatotroph tumors
Danila, D. C., Haidar, J. N. S., Zhang, X., Katznelson, L., Culler, M. D., & Klibanski, A. (2001). Somatostatin receptor-specific analogs: Effects on cell proliferation and growth hormone secretion in human somatotroph tumors. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 86(7), 2976–2981. -
Long-term treatment of acromegaly with pegvisomant, a growth hormone receptor antagonist
van der Lely, A. J., Hutson, R. K., Trainer, P. J., Besser, G. M., Barkan, A. L., Katznelson, L., … Thorner, M. (2001). Long-term treatment of acromegaly with pegvisomant, a growth hormone receptor antagonist. LANCET, 358(9295), 1754–1759. -
Cardiovascular risk factors in acromegaly before and after normalization of serum IGF-I levels with the GH antagonist pegvisomant
Sesmilo, G., Fairfield, W. P., Katznelson, L., Pulaski, K., Freda, P. U., Bonert, V., … Klibanski, A. (2002). Cardiovascular risk factors in acromegaly before and after normalization of serum IGF-I levels with the GH antagonist pegvisomant. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 87(4), 1692–1699. -
Effects of growth hormone secretion on body composition in patients with Crohn's disease
Katznelson, L., Fairfield, W. P., Zeizafoun, N., Sands, B. E., Peppercorn, M. A., Rosenthal, D. I., & Klibanski, A. (2003). Effects of growth hormone secretion on body composition in patients with Crohn's disease. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 88(11), 5468–5472. -
Diagnostic errors after inferior petrosal sinus sampling
Swearingen, B., Katznelson, L., Miller, K., Grinspoon, S., Waltman, A., Dorer, D. J., … Biller, B. M. K. (2004). Diagnostic errors after inferior petrosal sinus sampling. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 89(8), 3752–3763. -
Long-acting somatostatin analog therapy of acromegaly: A meta- analysis
Freda, P. U., Katznelson, L., van der Lely, A. J., Reyes, C. M., Zhao, S. H., & Rabinowitz, D. (2005). Long-acting somatostatin analog therapy of acromegaly: A meta- analysis. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 90(8), 4465–4473. -
Diagnosis and treatment of acromegaly
Katznelson, L. (2005). Diagnosis and treatment of acromegaly. Presented at the 18th Annual National Cooperative Growth Study/5th Annual National Cooperative Somatropin Surveillance Investigator Meeting, PHOENIX,AZ,AZ,AZ,AZ,AZ,AZ: CHURCHILL LIVINGSTONE. -
Drug Insight: primary medical therapy of acromegaly
Katznelson, L. (2006). Drug Insight: primary medical therapy of acromegaly. NATURE CLINICAL PRACTICE ENDOCRINOLOGY & METABOLISM, 2(2), 109–17. -
Effects of modest testosterone supplementation and exercise for 12 weeks on body composition and quality of life in elderly men
Katznelson, L., Robinson, M. W., Coyle, C. L., Lee, H., & Farrell, C. E. (2006). Effects of modest testosterone supplementation and exercise for 12 weeks on body composition and quality of life in elderly men. EUROPEAN JOURNAL OF ENDOCRINOLOGY, 155(6), 867–75. -
Isolated Langerhans cell histiocytosis in an adult with central diabetes insipidus: case report and review of literature.
Ouyang, D. L., Roberts, B. K., Gibbs, I. C., & Katznelson, L. (2006). Isolated Langerhans cell histiocytosis in an adult with central diabetes insipidus: case report and review of literature. Endocrine Practice , 12(6), 660–63. -
Efficacy and safety of CyberKnife radiosurgery for acromegaly.
Roberts, B. K., Ouyang, D. L., Lad, S. P., Chang, S. D., Harsh, G. R., Adler, J. R., … Katznelson, L. (2007). Efficacy and safety of CyberKnife radiosurgery for acromegaly. Pituitary, 10(1), 19–25. -
Approach to the evaluation of the GH/IGF-axis in patients with pituitary disease: Which test to order
Roberts, B., & Katznelson, L. (2007). Approach to the evaluation of the GH/IGF-axis in patients with pituitary disease: Which test to order. PITUITARY, 10(2), 205–11. -
Pegvisomant for the treatment of acromegaly-translation of clinical trials into clinical practice
Katznelson, L. (2007). Pegvisomant for the treatment of acromegaly-translation of clinical trials into clinical practice. NATURE CLINICAL PRACTICE ENDOCRINOLOGY & METABOLISM, 3(7), 514–15. -
Current thinking on the management of the acromegalic patient.
Katznelson, L. (2007). Current thinking on the management of the acromegalic patient. Current Opinion in Endocrinology, Diabetes, and Obesity, 14(4), 311–16. -
The role of inferior petrosal sinus sampling in the diagnostic localization of Cushing's disease.
Lad, S. P., Patil, C. G., Laws, E. R., & Katznelson, L. (2007). The role of inferior petrosal sinus sampling in the diagnostic localization of Cushing's disease. Neurosurgical Focus, 23(3), E2-? -
Brain atrophy and cognitive deficits in Cushing's disease.
Patil, C. G., Lad, S. P., Katznelson, L., & Laws, E. R. (2007). Brain atrophy and cognitive deficits in Cushing's disease. Neurosurgical Focus, 23(3), E11-? -
Late recurrences of Cushing's disease after initial successful transsphenoidal surgery
Patil, C. G., Prevedello, D. M., Lad, S. P., Vance, M. L., Thorner, M. O., Katznelson, L., & Laws, E. R. (2008). Late recurrences of Cushing's disease after initial successful transsphenoidal surgery. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 93(2), 358–62. -
Reninoma: case report and literature review
Wonga, L., Hsu, T. H. S., Perlroth, M. G., Hofmann, L. V., Haynes, C. M., & Katznelson, L. (2008). Reninoma: case report and literature review. JOURNAL OF HYPERTENSION, 26(2), 368–73. -
Alterations in body composition in acromegaly
Katznelson, L. (2009). Alterations in body composition in acromegaly. PITUITARY, 12(2), 136–42. -
An update on treatment strategies for acromegaly
Katznelson, L. (2008). An update on treatment strategies for acromegaly. EXPERT OPINION ON PHARMACOTHERAPY, 9(13), 2273–80. -
Outcomes after repeat transsphenoidal surgery for recurrent Cushing's disease
Patil, C. G., Veeravagu, A., Prevedello, D. A., Katznelson, L., Vance, M. L., Laws, E. R., … Cappabianca, P. (2008). Outcomes after repeat transsphenoidal surgery for recurrent Cushing's disease. NEUROSURGERY, 63(2), 266–71. -
Use of high-dose oral bisphosphonate therapy for symptomatic fibrous dysplasia of the skull
Chao, K., & Katznelson, L. (2008). Use of high-dose oral bisphosphonate therapy for symptomatic fibrous dysplasia of the skull. JOURNAL OF NEUROSURGERY, 109(5), 889–92. -
Endogenous NIS Expression in Triple-Negative Breast Cancers
Renier, C., Yao, C., Goris, M., Ghosh, M., Katznelson, L., Nowles, K., … Wapnir, I. (2009). Endogenous NIS Expression in Triple-Negative Breast Cancers. ANNALS OF SURGICAL ONCOLOGY, 16(4), 962–68. -
Non-surgical management of hormone-secreting pituitary tumors
Patil, C. G., Hayden, M., Katznelson, L., & Chang, S. D. (2009). Non-surgical management of hormone-secreting pituitary tumors. JOURNAL OF CLINICAL NEUROSCIENCE, 16(8), 985–93. -
Prevalence and clinical demographics of cerebral salt wasting in patients with aneurysmal subarachnoid hemorrhage
Kao, L., Al-Lawati, Z., Vavao, J., Steinberg, G. K., & Katznelson, L. (2009). Prevalence and clinical demographics of cerebral salt wasting in patients with aneurysmal subarachnoid hemorrhage. PITUITARY, 12(4), 347–51. -
Lanreotide promotes apoptosis and is not radioprotective in GH3 cells
Ning, S., Knox, S. J., Harsh, G. R., Culler, M. D., & Katznelson, L. (2009). Lanreotide promotes apoptosis and is not radioprotective in GH3 cells. ENDOCRINE-RELATED CANCER, 16(3), 1045–55. -
The impact of hypopituitarism on function and performance in subjects with recent history of traumatic brain injury and aneurysmal subarachnoid haemorrhage.
Srinivasan, L., Roberts, B., Bushnik, T., Englander, J., Spain, D. A., Steinberg, G. K., … Katznelson, L. (2009). The impact of hypopituitarism on function and performance in subjects with recent history of traumatic brain injury and aneurysmal subarachnoid haemorrhage. Brain Injury , 23(7), 639–48. -
A NOVEL PRKAR1A MUTATION ASSOCIATED WITH PRIMARY PIGMENTED NODULAR ADRENOCORTICAL DISEASE AND THE CARNEY COMPLEX
Peck, M. C., Visser, B. C., Norton, J. A., Pasche, L., & Katznelson, L. (2010). A NOVEL PRKAR1A MUTATION ASSOCIATED WITH PRIMARY PIGMENTED NODULAR ADRENOCORTICAL DISEASE AND THE CARNEY COMPLEX. ENDOCRINE PRACTICE, 16(2), 198–204. -
ECTOPIC ACROMEGALY DUE TO A PANCREATIC NEUROENDOCRINE TUMOR PRODUCING GROWTH HORMONE-RELEASING HORMONE
Weiss, D. E., Vogel, H., Lopes, M. B. S., Chang, S. D., & Katznelson, L. (2011). ECTOPIC ACROMEGALY DUE TO A PANCREATIC NEUROENDOCRINE TUMOR PRODUCING GROWTH HORMONE-RELEASING HORMONE. ENDOCRINE PRACTICE, 17(1), 79–84. -
Approach to the Patient with Persistent Acromegaly after Pituitary Surgery
Katznelson, L. (2010). Approach to the Patient with Persistent Acromegaly after Pituitary Surgery. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 95(9), 4114–23. -
Retrosellar intracranial extracerebral glioneuronal heterotopion: case report
Karamchandani, J., Fischbein, N., Harsh, G., Katznelson, L., & Vogel, H. (2010). Retrosellar intracranial extracerebral glioneuronal heterotopion: case report. CLINICAL NEUROPATHOLOGY, 29(5), 297–300. -
The dynamics of post-operative plasma ACTH values following transsphenoidal surgery for Cushing's disease
Srinivasan, L., Laws, E. R., Dodd, R. L., Monita, M. M., Tannenbaum, C. E., Kirkeby, K. M., … Katznelson, L. (2011). The dynamics of post-operative plasma ACTH values following transsphenoidal surgery for Cushing's disease. PITUITARY, 14(4), 312–17. -
American Association of Clinical Endocrinologists medical guidelines for clinical practice for the diagnosis and treatment of acromegaly--2011 update.
Katznelson, L., Atkinson, J. L. D., Cook, D. M., Ezzat, S. Z., Hamrahian, A. H., & Miller, K. K. (2011). American Association of Clinical Endocrinologists medical guidelines for clinical practice for the diagnosis and treatment of acromegaly--2011 update. Endocrine Practice , 17, 1–44. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS MEDICAL GUIDELINES FOR CLINICAL PRACTICE FOR THE DIAGNOSIS AND TREATMENT OF ACROMEGALY-2011 UPDATE: EXECUTIVE SUMMARY
Katznelson, L., Atkinson, J. L. D., Cook, D. M., Ezzat, S. Z., Hamrahian, A. H., & Miller, K. K. (2011). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS MEDICAL GUIDELINES FOR CLINICAL PRACTICE FOR THE DIAGNOSIS AND TREATMENT OF ACROMEGALY-2011 UPDATE: EXECUTIVE SUMMARY. ENDOCRINE PRACTICE, 17(4), 636–46. -
Pituitary Centers of Excellence
McLaughlin, N., Laws, E. R., Oyesiku, N. M., Katznelson, L., & Kelly, D. F. (2012). Pituitary Centers of Excellence. NEUROSURGERY, 71(5), 916–924. -
Sustained Improvements in Plasma ACTH and Clinical Status in a Patient With Nelson's Syndrome Treated With Pasireotide LAR, a Multireceptor Somatostatin Analog.
Katznelson, L. (2013). Sustained Improvements in Plasma ACTH and Clinical Status in a Patient With Nelson's Syndrome Treated With Pasireotide LAR, a Multireceptor Somatostatin Analog. Journal of Clinical Endocrinology & Metabolism, 98(5), 1803–1807. -
In reply.
McLaughlin, N., Laws, E. R., Oyesiku, N. M., Katznelson, L., & Kelly, D. F. (2013). In reply. Neurosurgery, 73(3), E557–8. -
Clinical characteristics and pituitary dysfunction in patients with metastatic cancer to the sella.
Ariel, D., Sung, H., Coghlan, N., Dodd, R., Gibbs, I. C., & Katznelson, L. (2013). Clinical characteristics and pituitary dysfunction in patients with metastatic cancer to the sella. Endocrine Practice , 19(6), 914–19. -
Biochemical assessment of Cushing's disease in patients with corticotroph macroadenomas
Katznelson, L., Bogan, J. S., Trob, J. R., Schoenfeld, D. A., Hedley-Whyte, E. T., Hsu, D. W., … Klibanski, A. (1998). Biochemical assessment of Cushing's disease in patients with corticotroph macroadenomas. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 83(5), 1619–1623. -
Clinical Characteristics of the Glucagon Stimulation Test (GST) in the Evaluation of Growth Hormone (GH) Reserve and Hypothalamic-Pituitary-Adrenal (HPA) Axis in Adults: A Multi-Centered US Experience
Yuen, K. C. J., Biller, B. M. K., Legg, S. E., Rhoads, S. A., Dillard, T. H., Gurel, M. H., … Cook, D. M. (2010). Clinical Characteristics of the Glucagon Stimulation Test (GST) in the Evaluation of Growth Hormone (GH) Reserve and Hypothalamic-Pituitary-Adrenal (HPA) Axis in Adults: A Multi-Centered US Experience. ENDOCRINE REVIEWS, 31(3), S1694–S1694. -
Ectopic Acromegaly due to a Growth Hormone Releasing Hormone Producing Pancreatic NET.
Weiss, D. E., Lopes, B. S., & Katznelson, L. (2010). Ectopic Acromegaly due to a Growth Hormone Releasing Hormone Producing Pancreatic NET. ENDOCRINE REVIEWS, 31(3). -
Fatigue after traumatic brain injury: Association with neuroendocrine, sleep, depression and other factors
Englander, J., Bushnik, T., Oggins, J., & Katznelson, L. (2010). Fatigue after traumatic brain injury: Association with neuroendocrine, sleep, depression and other factors. BRAIN INJURY, 24(12), 1379–1388. -
Fatigue after TBI: Association with neuroendocrine abnormalities
Bushnik, T., Englander, J., & Katznelson, L. (2007). Fatigue after TBI: Association with neuroendocrine abnormalities. BRAIN INJURY, 21(6), 559–566. -
Clinical characteristics, timing of peak responses and safety aspects of two dosing regimens of the glucagon stimulation test in evaluating growth hormone and cortisol secretion in adults
Yuen, K. C. J., Biller, B. M. K., Katznelson, L., Rhoads, S. A., Gurel, M. H., Chu, O., … Cook, D. M. (2013). Clinical characteristics, timing of peak responses and safety aspects of two dosing regimens of the glucagon stimulation test in evaluating growth hormone and cortisol secretion in adults. PITUITARY, 16(2), 220–30. -
Pituitary Incidentaloma: An Endocrine Society Clinical Practice Guideline
Freda, P. U., Beckers, A. M., Katznelson, L., Molitch, M. E., Montori, V. M., Post, K. D., & Vance, M. L. (2011). Pituitary Incidentaloma: An Endocrine Society Clinical Practice Guideline. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 96(4), 894–904. -
Global clinical response in Cushing's syndrome patients treated with mifepristone.
Katznelson, L., Loriaux, D. L., Feldman, D., Braunstein, G. D., Schteingart, D. E., & Gross, C. (2014). Global clinical response in Cushing's syndrome patients treated with mifepristone. Clinical Endocrinology, 80(4), 562–69. -
Treatments, complications, and healthcare utilization associated with acromegaly: a study in two large United States databases
Broder, M. S., Neary, M. P., Chang, E., Cherepanov, D., & Katznelson, L. (2014). Treatments, complications, and healthcare utilization associated with acromegaly: a study in two large United States databases. PITUITARY, 17(4), 333–341. -
Pharmacokinetics, Pharmacodynamics, and Safety of Pasireotide LAR in Patients With Acromegaly: A Randomized, Multicenter, Open-Label, Phase I Study
Petersenn, S., Bollerslev, J., Arafat, A. M., Schopohl, J., Serri, O., Katznelson, L., … Beckers, A. (2014). Pharmacokinetics, Pharmacodynamics, and Safety of Pasireotide LAR in Patients With Acromegaly: A Randomized, Multicenter, Open-Label, Phase I Study. JOURNAL OF CLINICAL PHARMACOLOGY, 54(11), 1308–1317. -
Acromegaly: An Endocrine Society Clinical Practice Guideline
Katznelson, L., Laws, E. R., Melmed, S., Molitch, M. E., Murad, M. H., Utz, A., & Wass, J. A. H. (2014). Acromegaly: An Endocrine Society Clinical Practice Guideline. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 99(11), 3933–51. -
Surgical Interventions and Medical Treatments in Treatment-Naive Patients With Acromegaly: Systematic Review and Meta-Analysis
Abu Dabrh, A. M., Mohammed, K., Asi, N., Farah, W. H., Wang, Z., Farah, M. H., … Murad, M. H. (2014). Surgical Interventions and Medical Treatments in Treatment-Naive Patients With Acromegaly: Systematic Review and Meta-Analysis. JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, 99(11), 4003–14. -
Utility of Adrenocorticotropic Hormone in Assessing the Response to Transsphenoidal Surgery for Cushing's Disease.
Salmon, P. M., Loftus, P. D., Dodd, R. L., Harsh, G., Chu, O. S., & Katznelson, L. (2014). Utility of Adrenocorticotropic Hormone in Assessing the Response to Transsphenoidal Surgery for Cushing's Disease. Endocrine Practice , 20(11), 1159–64. -
Cushing's disease: predicting long-term remission after surgical treatment
Pendharkar, A. V., Sussman, E. S., Ho, A. L., Gephart, M. G. H., & Katznelson, L. (2015). Cushing's disease: predicting long-term remission after surgical treatment. NEUROSURGICAL FOCUS, 38(2). -
CHARACTERIZATION OF GLYCOPROTEIN HORMONE AND FREE-SUBUNIT PRODUCTION IN PITUITARY-TUMORS
Katznelson, L., & Klibanski, A. (1991). CHARACTERIZATION OF GLYCOPROTEIN HORMONE AND FREE-SUBUNIT PRODUCTION IN PITUITARY-TUMORS. Presented at the 5TH EUROPEAN WORKSHOP ON PITUITARY ADENOMAS, VENICE,ITALY: ELSEVIER SCIENCE PUBL B V. -
Nelson Syndrome: Update on Therapeutic Approaches.
Azad, T. D., Veeravagu, A., Kumar, S., & Katznelson, L. (2015). Nelson Syndrome: Update on Therapeutic Approaches. World Neurosurgery, 83(6), 1135–40. -
Limits to Scholarship: How Can We Enhance the Program Director's Role?
De Golia, S. G., & Katznelson, L. (2015). Limits to Scholarship: How Can We Enhance the Program Director's Role? Academic Psychiatry , 39(1), 70–72. -
Long-term efficacy and safety of pegvisomant therapy in acromegaly.
Yuen, K. C. J., & Katznelson, L. (2015). Long-term efficacy and safety of pegvisomant therapy in acromegaly. Endocrine Practice , 21(3), 296–98. -
Acromegalic heart disease
Pinzone, J. J., Katznelson, L., & Klibanski, A. (1998). Acromegalic heart disease. ENDOCRINOLOGIST, 8(4), 273–278. -
The Hormone Foundation's Patient guide to pituitary incidentaloma assessment and treatment.
Freda, P., Katznelson, L., & Molitch, M. (2011). The Hormone Foundation's Patient guide to pituitary incidentaloma assessment and treatment. Journal of Clinical Endocrinology and Metabolism, 96(4), 35A–6A. -
Bilateral adrenalectomy for Cushing's disease
Katznelson, L. (2015). Bilateral adrenalectomy for Cushing's disease. PITUITARY, 18(2), 269–73. -
In reply.
McLaughlin, N., Laws, E. R., Oyesiku, N. M., Katznelson, L., & Kelly, D. F. (2014). In reply. Neurosurgery, 74(1), E143–4. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS MEDICAL GUIDELINES FOR CLINICAL PRACTICE FOR THE DIAGNOSIS AND TREATMENT OF ACROMEGALY-2011 UPDATE
Katznelson, L., Atkinson, J. L. D., Cook, D. M., Ezzat, S. Z., Hamrahian, A. H., & Miller, K. K. (2011). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS MEDICAL GUIDELINES FOR CLINICAL PRACTICE FOR THE DIAGNOSIS AND TREATMENT OF ACROMEGALY-2011 UPDATE. ENDOCRINE PRACTICE, 17, 1-? -
Nelson Syndrome: Update on Therapeutic Approaches
Azad, T. D., Veeravagu, A., Kumar, S., & Katznelson, L. (2015). Nelson Syndrome: Update on Therapeutic Approaches. WORLD NEUROSURGERY, 83(6), 1135–40. -
AACE Medical Guidelines for Clinical Practice for the diagnosis and treatment of acromegaly.
Cook, D. M., Ezzat, S., Katznelson, L., Kleinberg, D. L., Laws, E. R., Nippoldt, T. B., … Vance, M. L. (2004). AACE Medical Guidelines for Clinical Practice for the diagnosis and treatment of acromegaly. Endocrine Practice , 10(3), 213–225. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: MANAGEMENT OF ACROMEGALY PATIENTS: MANAGEMENT OF ACROMEGALY PATIENTS: WHAT IS THE ROLE OF PRE-OPERATIVE MEDICAL THERAPY?
Fleseriu, M., Hoffman, A. R., & Katznelson, L. (2015). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: MANAGEMENT OF ACROMEGALY PATIENTS: MANAGEMENT OF ACROMEGALY PATIENTS: WHAT IS THE ROLE OF PRE-OPERATIVE MEDICAL THERAPY? ENDOCRINE PRACTICE, 21(6), 668–673. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: MANAGEMENT OF ACROMEGALY PATIENTS: WHAT IS THE ROLE OF PRE-OPERATIVE MEDICAL THERAPY?
Fleseriu, M., Hoffman, A. R., & Katznelson, L. (2015). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: MANAGEMENT OF ACROMEGALY PATIENTS: WHAT IS THE ROLE OF PRE-OPERATIVE MEDICAL THERAPY? Endocrine Practice , 21(6), 668–673. -
RADIOTHERAPY VERSUS RADIOSURGERY IN TREATING PATIENTS WITH ACROMEGALY: A SYSTEMATIC REVIEW AND META-ANALYSIS.
Abu Dabrh, A. M., Asi, N., Farah, W. H., Mohammed, K., Wang, Z., Farah, M. H., … Murad, M. H. (2015). RADIOTHERAPY VERSUS RADIOSURGERY IN TREATING PATIENTS WITH ACROMEGALY: A SYSTEMATIC REVIEW AND META-ANALYSIS. Endocrine Practice , 21(8), 943–956. -
Pharmacokinetics, pharmacodynamics, and safety of pasireotide LAR in patients with acromegaly: a randomized, multicenter, open-label, phase I study.
Petersenn, S., Bollerslev, J., Arafat, A. M., Schopohl, J., Serri, O., Katznelson, L., … Beckers, A. (2014). Pharmacokinetics, pharmacodynamics, and safety of pasireotide LAR in patients with acromegaly: a randomized, multicenter, open-label, phase I study. Journal of Clinical Pharmacology, 54(11), 1308–1317. -
Giant Prolactinoma Presenting with Neck Pain and Structural Compromise of the Occipital Condyles.
Yecies, D., Ajlan, A., Ratliff, J., Ziskin, J., Hwang, P., Vogel, H., … Harsh, G. (2015). Giant Prolactinoma Presenting with Neck Pain and Structural Compromise of the Occipital Condyles. Journal of Neurological Surgery Reports, 76(2), e297–301. -
Mifepristone Treatment of Cushing's Syndrome in a Pediatric Patient
Banerjee, R. R., Marina, N., Katznelson, L., & Feldman, B. J. (2015). Mifepristone Treatment of Cushing's Syndrome in a Pediatric Patient. PEDIATRICS, 136(5), E1377–E1381. -
Growth Hormone Research Society perspective on the development of long-acting growth hormone preparations
Christiansen, J. S., Backeljauw, P. F., Bidlingmaier, M., Biller, B. M. K., Boguszewski, M. C. S., Casanueva, F. F., … Yuen, K. (2016). Growth Hormone Research Society perspective on the development of long-acting growth hormone preparations. EUROPEAN JOURNAL OF ENDOCRINOLOGY, 174(6), C1–C8. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: POSTOPERATIVE MANAGEMENT FOLLOWING PITUITARY SURGERY
Woodmansee, W. W., Carmichael, J., Kelly, D., & Katznelson, L. (2015). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: POSTOPERATIVE MANAGEMENT FOLLOWING PITUITARY SURGERY. ENDOCRINE PRACTICE, 21(7), 832–838. -
Safety analysis of long-term budesonide nasal irrigations in patients with chronic rhinosinusitis post endoscopic sinus surgery
Soudry, E., Wang, J., Vaezeafshar, R., Katznelson, L., & Hwang, P. H. (2016). Safety analysis of long-term budesonide nasal irrigations in patients with chronic rhinosinusitis post endoscopic sinus surgery. INTERNATIONAL FORUM OF ALLERGY & RHINOLOGY, 6(6), 568–72. -
The impact of hypopituitarism on function and performance in subjects with recent history of traumatic brain injury and aneurysmal subarachnoid haemorrhage
Srinivasan, L., Roberts, B., Bushnik, T., Englander, J., Spain, D. A., Steinberg, G. K., … Katznelson, L. (2009). The impact of hypopituitarism on function and performance in subjects with recent history of traumatic brain injury and aneurysmal subarachnoid haemorrhage. BRAIN INJURY, 23(7-8), 639–48. -
UTILITY OF A GLUCOCORTICOID SPARING STRATEGY IN THE MANAGEMENT OF PATIENTS FOLLOWING TRANSSPHENOIDAL SURGERY
Jia, X., Pendharkar, A. V., Loftus, P., Dodd, R. L., Chu, O., Fraenkel, M., & Katznelson, L. (2016). UTILITY OF A GLUCOCORTICOID SPARING STRATEGY IN THE MANAGEMENT OF PATIENTS FOLLOWING TRANSSPHENOIDAL SURGERY. ENDOCRINE PRACTICE, 22(9), 1033–39. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: UPDATE ON GROWTH HORMONE STIMULATION TESTING AND PROPOSED REVISED CUT-POINT FOR THE GLUCAGON STIMULATION TEST IN THE DIAGNOSIS OF ADULT GROWTH HORMONE DEFICIENCY
Yuen, K. C. J., Tritos, N. A., Samson, S. L., Hoffman, A. R., & Katznelson, L. (2016). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: UPDATE ON GROWTH HORMONE STIMULATION TESTING AND PROPOSED REVISED CUT-POINT FOR THE GLUCAGON STIMULATION TEST IN THE DIAGNOSIS OF ADULT GROWTH HORMONE DEFICIENCY. ENDOCRINE PRACTICE, 22(10), 1235–44. -
AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: DIAGNOSIS OF RECURRENCE IN CUSHING DISEASE
Fleseriu, M., Hamrahian, A. H., Hoffman, A. R., Kelly, D. F., & Katznelson, L. (2016). AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY DISEASE STATE CLINICAL REVIEW: DIAGNOSIS OF RECURRENCE IN CUSHING DISEASE. ENDOCRINE PRACTICE, 22(12), 1436–48. -
Radiotherapy vs. Radiosurgery in Treating Patients with Acromegaly: Systematic Review and Meta-Analysis.
Abu Dabrh, A., Asi, N., Farah, W., Mohammed, K., Wang, Z., Farah, M., … Murad, M. (2015). Radiotherapy vs. Radiosurgery in Treating Patients with Acromegaly: Systematic Review and Meta-Analysis. Endocrine Practice , 1–33. -
Practice transition in graduate medical education.
Shaffer, R., Piro, N., Katznelson, L., & Gephart, M. H. (2017). Practice transition in graduate medical education. The Clinical Teacher. -
Follow-up intervals in patients with Cushing's disease: recommendations from a panel of experienced pituitary clinicians.
Geer, E. B., Ayala, A., Bonert, V., Carmichael, J. D., Gordon, M. B., Katznelson, L., … Biller, B. M. K. (2017). Follow-up intervals in patients with Cushing's disease: recommendations from a panel of experienced pituitary clinicians. Pituitary. -
Nurse Telephonic Triage Service for After-hour Patient Calls in Neurosurgery.
Escobedo-Wu, E. L., Dhebar, F., Harsh, G., Steinberg, G., Vyas, A., Katznelson, L., … Rohatgi, N. (2018). Nurse Telephonic Triage Service for After-hour Patient Calls in Neurosurgery. Annals of Surgery, 267(4), e67–e68. -
Diabetes Insipidus following Endoscopic Transsphenoidal Surgery for Pituitary Adenoma
Ajlan, A. M., Bin Abdulqader, S., Achrol, A. S., Aljamaan, Y., Feroze, A. H., Katznelson, L., & Harsh, G. R. (2018). Diabetes Insipidus following Endoscopic Transsphenoidal Surgery for Pituitary Adenoma. JOURNAL OF NEUROLOGICAL SURGERY PART B-SKULL BASE, 79(2), 117–22. -
CyberKnife robotic radiosurgery in the multimodal management of acromegaly patients with invasive macroadenoma: a single center's experience
Sala, E., Moore, J. M., Amorin, A., Martinez, H., Bhowmik, A. C., Lamsam, L., … Harsh, G. R. (2018). CyberKnife robotic radiosurgery in the multimodal management of acromegaly patients with invasive macroadenoma: a single center's experience. JOURNAL OF NEURO-ONCOLOGY, 138(2), 291–98. -
Adrenal Axis Insufficiency After Endoscopic Transsphenoidal Resection of Pituitary Adenomas
Ajlan, A., Almufawez, K. A., Albakr, A., Katznelson, L., & Harsh, G. R. (2018). Adrenal Axis Insufficiency After Endoscopic Transsphenoidal Resection of Pituitary Adenomas. WORLD NEUROSURGERY, 112, E869–E875. -
CyberKnife Radiosurgery in the Multimodal Management of Patients with Cushing Disease
Moore, J. M., Sala, E., Amorin, A., Martinez, H., Bhowmik, A. C., Chang, S. D., … Katznelson, L. (2018). CyberKnife Radiosurgery in the Multimodal Management of Patients with Cushing Disease. WORLD NEUROSURGERY, 112, E425–E430. -
Utility of Pit-1 Immunostaining in Distinguishing Pituitary Adenomas of Primitive Differentiation from Null Cell Adenomas
Lee, J. C., Pekmezci, M., Lavezo, J. L., Vogel, H., Katznelson, L., Fraenkel, M., … Tihan, T. (2017). Utility of Pit-1 Immunostaining in Distinguishing Pituitary Adenomas of Primitive Differentiation from Null Cell Adenomas. ENDOCRINE PATHOLOGY, 28(4), 287–92. -
Clinical and Immunohistochemical Analysis of Clinically Non-functional Pituitary Neuroendocrine Tumors
Lavezo, J., Frankel, M., Balliu, B., Pan, J., Hoffman, A., Dodd, R., … Vogel, H. (2018). Clinical and Immunohistochemical Analysis of Clinically Non-functional Pituitary Neuroendocrine Tumors. JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY, 77(6), 518. -
AACE/ACE DISEASE STATE CLINICAL REVIEW: DIAGNOSIS AND MANAGEMENT OF MIDGUT CARCINOIDS
Liu, E. H., Solorzano, C. C., Katznelson, L., Vinik, A. I., Wong, R., & Randolph, G. (2015). AACE/ACE DISEASE STATE CLINICAL REVIEW: DIAGNOSIS AND MANAGEMENT OF MIDGUT CARCINOIDS. ENDOCRINE PRACTICE, 21(5), 534–45. -
Natural history of Rathke's cleft cysts: A retrospective analysis of a two centres experience
Sala, E., Moore, J. M., Amorin, A., Carosi, G., Martinez, H., Harsh, G. R., … Katznelson, L. (2018). Natural history of Rathke's cleft cysts: A retrospective analysis of a two centres experience. CLINICAL ENDOCRINOLOGY, 89(2), 178–86. -
Psychological effects of Dopamine Agonist Treatment in Patients with Hyperprolactinemia and Prolactin Secreting Adenomas.
Ioachimescu, A. G., Fleseriu, M., Hoffman, A. R., Vaughan Iii, T. B., & Katznelson, L. (2018). Psychological effects of Dopamine Agonist Treatment in Patients with Hyperprolactinemia and Prolactin Secreting Adenomas. European Journal of Endocrinology. -
Efficacy and safety of CyberKnife radiosurgery for acromegaly.
Roberts, B. K., Ouyang, D. L., Lad, S. P., Chang, S. D., Harsh, G. R., Adler, J. R., … Katznelson, L. (2007). Efficacy and safety of CyberKnife radiosurgery for acromegaly. Pituitary, 10(1), 17. -
Encouraging Mindfulness in Medical House Staff via Smartphone App: A Pilot Study.
Wen, L., Sweeney, T. E., Welton, L., Trockel, M., & Katznelson, L. (2017). Encouraging Mindfulness in Medical House Staff via Smartphone App: A Pilot Study. Academic Psychiatry : the Journal of the American Association of Directors of Psychiatric Residency Training and the Association for Academic Psychiatry, 41(5), 646–650. -
A protected time policy to improve dental health among resident physicians
Jun, T. W., Liebert, C. A., Esquivel, M., Cox, J. A., Trockel, M., & Katznelson, L. (2019). A protected time policy to improve dental health among resident physicians. JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 150(5), 362-+. -
Authors' response.
Jun, T. W., Liebert, C. A., Esquivel, M., Cox, J. A., Trockel, M., & Katznelson, L. (2019). Authors' response. Journal of the American Dental Association (1939), 150(7), 568–69. -
Beyond duty hours: leveraging large-scale paging data to monitor resident workload
Kaushal, A., Katznelson, L., & Harrington, R. A. (2019). Beyond duty hours: leveraging large-scale paging data to monitor resident workload. NPJ DIGITAL MEDICINE, 2, 87. -
A Consensus on the Diagnosis and Treatment of Acromegaly Comorbidities: An Update.
Giustina, A., Barkan, A., Beckers, A., Biermasz, N., Biller, B. M., Boguszewski, C., … Melmed, S. (2019). A Consensus on the Diagnosis and Treatment of Acromegaly Comorbidities: An Update. The Journal of Clinical Endocrinology and Metabolism. -
ITALIAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS (AME) and ITALIAN AACE CHAPTER POSITION STATEMENT FOR CLINICAL PRACTICE: ACROMEGALY - PART 1: DIAGNOSTIC AND CLINICAL ISSUES.
Cozzi, R., Ambrosio, M. R., Attanasio, R., Bozzao, A., De Marinis, L., De Menis, E., … Katznelson, L. (2020). ITALIAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS (AME) and ITALIAN AACE CHAPTER POSITION STATEMENT FOR CLINICAL PRACTICE: ACROMEGALY - PART 1: DIAGNOSTIC AND CLINICAL ISSUES. Endocrine, Metabolic & Immune Disorders Drug Targets. -
Italian Association Of Clinical Endocrinologists (Ame) And Italian Aace Chapter Position Statement For Clinical Practice: Acromegaly - Part 2: Therapeutic Issues.
Cozzi, R., Ambrosio, M. R., Attanasio, R., Bozzao, A., De Marinis, L., De Menis, E., … Katznelson, L. (2020). Italian Association Of Clinical Endocrinologists (Ame) And Italian Aace Chapter Position Statement For Clinical Practice: Acromegaly - Part 2: Therapeutic Issues. Endocrine, Metabolic & Immune Disorders Drug Targets. -
The New USMLE Step 1 Paradigm: An Opportunity to Cultivate Diversity of Excellence.
Pershing, S., Co, J. P., & Katznelson, L. (2020). The New USMLE Step 1 Paradigm: An Opportunity to Cultivate Diversity of Excellence. Academic Medicine : Journal of the Association of American Medical Colleges. -
RNA Expression Profiles of Pituitary Adenomas Using Laser Capture Microdissection and Smart-3SEQ
Lavezo, J., Zhu, C. F., Vennam, S., Reveron-Thornton, R., Toland, A., Katznelson, L., … West, R. (2020). RNA Expression Profiles of Pituitary Adenomas Using Laser Capture Microdissection and Smart-3SEQ. JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY. OXFORD UNIV PRESS INC. -
Managing complications of endoscopic transsphenoidal surgery in pituitary adenomas.
Abhinav, K., Tyler, M., Dale, O. T., Mohyeldin, A., Fernandez-Miranda, J. C., & Katznelson, L. (2020). Managing complications of endoscopic transsphenoidal surgery in pituitary adenomas. Expert Review of Endocrinology & Metabolism, 1–9. -
A Pituitary Society update to acromegaly management guidelines.
Fleseriu, M., Biller, B. M., Freda, P. U., Gadelha, M. R., Giustina, A., Katznelson, L., … Melmed, S. (2020). A Pituitary Society update to acromegaly management guidelines. Pituitary. -
Glucocorticoid use in patients with adrenal insufficiency following administration of the COVID-19 vaccine: a pituitary society statement.
Katznelson, L., & Gadelha, M. (2021). Glucocorticoid use in patients with adrenal insufficiency following administration of the COVID-19 vaccine: a pituitary society statement. Pituitary. -
Pituitary Neoplasm Nomenclature Workshop: Does Adenoma Stand the Test of Time?
Ho, K., Fleseriu, M., Kaiser, U., Salvatori, R., Brue, T., Lopes, M. B., … Melmed, S. (2021). Pituitary Neoplasm Nomenclature Workshop: Does Adenoma Stand the Test of Time? Journal of the Endocrine Society, 5(3), bvaa205. -
A pilot, randomized controlled trial of telementorship: A useful tool during social distancing.
Prionas, N. D., Kung, T. H., Dohn, A., Piro, N., von Eyben, R., Katznelson, L., & Caruso, T. J. (2021). A pilot, randomized controlled trial of telementorship: A useful tool during social distancing. Journal of Clinical and Translational Research, 7(1), 66–71. -
Consensus on diagnosis and management of Cushing's disease: a guideline update.
Fleseriu, M., Auchus, R., Bancos, I., Ben-Shlomo, A., Bertherat, J., Biermasz, N. R., … Biller, B. M. (2021). Consensus on diagnosis and management of Cushing's disease: a guideline update. The Lancet. Diabetes & Endocrinology. -
Performance Nutrition for Physician Trainees Working Overnight Shifts: A Randomized Controlled Trial.
Makowski, M. S., Trockel, M. T., Menon, N. K., Wang, H., Katznelson, L., & Shanafelt, T. D. (2021). Performance Nutrition for Physician Trainees Working Overnight Shifts: A Randomized Controlled Trial. Academic Medicine : Journal of the Association of American Medical Colleges. -
ITALIAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS (AME) AND INTERNATIONAL CHAPTER OF CLINICAL ENDOCRINOLOGY (ICCE). POSITION STATEMENT FOR CLINICAL PRACTICE: PROLACTIN-SECRETING TUMORS.
Cozzi, R., Ambrosio, M. R., Attanasio, R., Battista, C., Bozzao, A., Caputo, M., … Poiana, C. (1800). ITALIAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS (AME) AND INTERNATIONAL CHAPTER OF CLINICAL ENDOCRINOLOGY (ICCE). POSITION STATEMENT FOR CLINICAL PRACTICE: PROLACTIN-SECRETING TUMORS. European Journal of Endocrinology. -
The role of growth hormone for fertility in women with hypopituitarism.
Chen, J., & Katznelson, L. (2022). The role of growth hormone for fertility in women with hypopituitarism. Growth Hormone & IGF Research : Official Journal of the Growth Hormone Research Society and the International IGF Research Society, 63, 101458. -
Role of Radiation in the treatment of Cushing Disease.
Katznelson, L. (2022). Role of Radiation in the treatment of Cushing Disease. Pituitary. -
Prospective intraoperative and histologic evaluation of cavernous sinus medial wall invasion by pituitary adenomas and its implications for acromegaly remission outcomes.
Mohyeldin, A., Katznelson, L. J., Hoffman, A. R., Asmaro, K., Ahmadian, S. S., Eltobgy, M. M., … Fernandez-Miranda, J. C. (2022). Prospective intraoperative and histologic evaluation of cavernous sinus medial wall invasion by pituitary adenomas and its implications for acromegaly remission outcomes. Scientific Reports, 12(1), 9919. -
Socio-behavioral dysfunction in disorders of hypothalamic-pituitary involvement: The potential role of disease-induced oxytocin and vasopressin signaling deficits.
Clarke, L., Zyga, O., Pineo-Cavanaugh, P. L., Jeng, M., Fischbein, N. J., Partap, S., … Parker, K. J. (2022). Socio-behavioral dysfunction in disorders of hypothalamic-pituitary involvement: The potential role of disease-induced oxytocin and vasopressin signaling deficits. Neuroscience and Biobehavioral Reviews, 104770. -
Optimizing Care Teams by Leveraging Advanced Practice Providers Through Strategic Workforce Planning.
Kuriakose, C., Stringer, M., Ziegler, A., Hsieh, C., Atashroo, M., Hendershott, J., … Mahoney, M. (2022). Optimizing Care Teams by Leveraging Advanced Practice Providers Through Strategic Workforce Planning. The Journal of Nursing Administration, 52(9), 474–478.
Clinical Trials
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.
- The Burden of Illness in Patients with Cushing’s Disease: a Retrospective Medical Chart Review Study »
- Review of Outcomes from Petrosal Catherization in Cushing’s Syndrome »
- SOM230C2305: A Multicenter Randomized Blinded Study to Assess Safety and Efficacy of Pasireotide LAR vs. Octreolide LAR in Patients with Active Acromegaly »
- A Trial to Assess Efficacy and Safety of Octreotide Subcutaneous Depot in Patients With Acromegaly »
- A Trial to Assess the Long-term Safety of Octreotide Subcutaneous Depot in Patients With Acromegaly »
- Study to Allow Access to Pasireotide for Patients Benefiting From Pasireotide Treatment in Novartis-sponsored Studies »
- Safety and Efficacy of Pasireotide Long Acting Release (LAR) vs. Octreotide LAR in Patients With Active Acromegaly »
- An Open-Labeled, Extended-Use of XERECEPT (hCRF) for Patients in Studies NTI 0302, 0303, or Other Designated Studies »
- XERECEPT® (hCRF) for Patients Requiring Dexamethasone to Treat Edema Associated With Brain Tumors »
- Pilot Study to Determine Radioiodide Accumulation and Dosimetry in Breast Cancers Using 124I PET/CT »
Practice Locations
Pituitary Center Palo Alto, CA
Palo Alto, CA
Pituitary Center
213 Quarry Road
Palo Alto , CA 94304
Make An Appointment More Clinic Information » Getting Here »Stanford Neuroscience Health Center Palo Alto, CA
Palo Alto, CA
Stanford Neuroscience Health Center
213 Quarry Road
Palo Alto , CA 94304
Make An Appointment More Clinic Information » Getting Here »Patient Reviews
(151 reviews)
Dr. Katznelson is top notch in every way. He has been extremely helpful to me. He listens carefully, shows genuine interest and inspires confidence in a positive outcome.
He was sensitive and compassionate.
Dr Katznelson took time to answer all my questions. He has a good "bedside manner" and sense of humor.
Dr. Katznelson is a great doctor to talk with. He is personable and kind.
I like Dr. Katznelson. He is very detailed, answers questions clearly.
He is very pleasant to interact with.
Excellent provider who’s cared for me over the years.
Has a human touch- genuine care!
I lov Dr Katznelson and his team! So efficient yet personable.
Very personable and knowledgeable and took the time to explain in lay man’s terms the issue we are dealing with. I didn’t feel rushed and he was most helpful in assuring me about my situation. Super satisfied……wonderful Dr. AAA+ rating / 5 star
Very informative and communicates well
I felt the appointment went well. He understood my concerns and addressed them. I feel confident in the care he provided.
He is very knowledgeable and professional. I appreciated that he was thorough and took time to answer all of my questions. I really like that he adds his comments to lab test results so that I know he read them and I can see what actions, if any, I need to take.
Excellent Dr. I have full confidence that he is doing the right thing for me, thank you
The was very caring and helpful
Very thoughtful and capable. Looking forward to my next in person appointment.
As good as they get.
Wonderful provider. Thoughtful, caring and understanding
Superb professional
Thank you for being so understanding. And for agreeing that I am OK to go forth with directions to get off the hydrocortisone. I appreciate it.
Thank you for taking time via video with me.
Fantastic doctor
Best doctor I have ever worked with. Wonderful person with great bed side manners.
Stanford has the best trained doctors I have ever met I consider Stanford doctors the best trained and knowledgeable doctors in the world very considerante and caring! DR Laurencee Katznelson ,MD is very professional and knowledgeable in his line of work along with his associate! Oliva Sye-Ying Chu, NP, They were both outstanding!!!
He is very caring and helpful. Easy to talk to.
Dr. Katznelson provides world class care
Es un exelente hospital y la atención es perfecta
He’s a genius. Best doctor there is anyplace
Dr Katznelson and Olivia are the best. I couldn’t get better care than I do from them. They listen to my concerns and make me feel like they care. They are very thorough and I know they are doing all they can to help me. Thank you Dr. Katznelson and Olivia.
He is very knowledgeable and patient. He also has a sense of humor.
Dr Katznelson and Olivia Chu are the best in the field. I could not ask for better care and I give credit to them for my ability to be able to be who I am and do the things I do every day. Not everyone is as fortunate as I am. for most their biggest accomplishment every day is getting out of bed. I wish everyone had access to such awesome doctors or should I say I wish all doctors were as awesome, knowledgeable, and caring as Dr Katznelson and Olivia Chu. The world would definitely be a better place.
I have a very complex and rare disease hence I switched to Stanford to receive care. I wanted to be proactive as my levels are getting more abnormal and to discuss possibilities. I came out from that appointment feeling most of my questions unaswered.
He’s a great doctor. Very knowledgeable, very personable; it’s clear he has the best interests of his patients as top priority. Thanks!
Pleasant, informative, patient, knowledgeable, very happy to have seen him.
Extremely efficient, friendly and organized. Truly impressed.
Accessible, caring, knowledgeable, patient.
Dr Katznelson is the best doctor I ever had. He is both super competent and trustworthy and also always respectful and nice.
I always appreciate Dr. Katznelson's genuine interest and his happy demeanor, as well of course as his excellent medical care.
Dr. Katznelson has been a wonderful, thoughtful doctor who has treated me with great care over the many years I've seen him. His NP, Olivia, has also been great to work with. She has been extremely helpful during and in between visits.
Dr Katznelson listens and understands my condition. I feel confident in my medical plan under his care
Great physician.
Everything excellent
Dr. Katznelson has always been very patient with me and my family and I am sure that if he were not my doctor I would not feel so healthy:
He is a compassionate and caring doctor who provides excellent medical care for my husband.
Excelente Doctor i do not have any complaints
Dr Katznelson is #1 in great support for me as a patient for 10 years
He has been helpful with facilitating my care plan with my local endocrinologist.
Great Doctor. Highly recommend.
He's the best! Extremely knowledgeable and he explains things thoroughly, making sure you understand. Never feels rushed, and I never feel uncomfortable/stupid asking questions. He also has a sense of humor, which is greatly appreciated!
I feel the same way about his NP, Olivia.
Dr. Kaz Nelson is always extremely friendly and makes me feel heard. He listens to concerns and take them seriously. I feel very safe and I feel like I have a doctor that cares and really wants me to feel better.
Intelligent, articulate and a great strategist.
I feel incredibly lucky to have the privilege to work with Dr. Katznelson. In addition to being on the cutting edge of his field, he is very warm and caring.
tHERE IS NOT A FINER PHYSICIAN THAN THIS HEALER....
HE IS ABSOLUTELY A 10+++
Dr Katnelson is wonderful.
Awesome Dr. & human being.
He is an excellent practitioner!
Extremely knowledgable, approachable,
shares information and is willing to engage in discussions of my health concerns... and to work collaboratively with me
to improve my health and quality of life
Highly recommend him!
Excellent
Dr Katz nelson is a personable knowledgeable caring doctor
He is a nice, and very knowledge doctor. always has patience, and care for patients.
Dr. Katnelson is the best. He is very friendly, listens and we have the utmost confidence in what he says/does is best for the patient.
Thank you for taking the time to meet with me.
Caring with great bedside manners.
You’re awesome
Dr. Katznelson was very paience to listen to my issues and he has been a very caring and supportive doctor in my life. I also wanted to give thanks to Olivia Chu, NP who has been a great help to update my medicine, medical condition as well as blood draw request etc. Thank you very much.
He is the best
Every thing was fine.
Outstanding.
Both the doctor and NP were engaged, listened well, and left me feeling they really cared.
NP and dr. among the finest people and care providers I've ever met (and I've met a great many).
Dr. Katznelson is an outstanding dr.
Good!
Doc Katznelson and staff are wonderful especially his PA Olivia. She always gets right back to me and gets thing taken care of right AWAY.
Item 10 many times.
I felt uncomfortable about our communication. I did not feel that my concerns were addressed or HEARD. I felt that the doctor had a preconceived agenda and was pushy, rather than helping me to have all the information to take the lead in determining my best course of action, aligned with my values & beliefs.
Is there another doctor as GREAT as Dr. Katznelson... NEVER.
Dr. K - great as always!
I would absolutely recommend Dr. Katznelson. He is a great dr./person and so is Olivia Chu.
I am delighted with Dr. Katznelson and his team-
I am glad Dr. Katznelson accepted me as a new patient. The doctor and physician assistant answered my questions and concerns very patiently during my first visit to the clinic.
Always tell my clients the great experiences I have, during all my appts. & surgery.
Dr. Katznelson is one of the best physicians I have ever worked with ever.
Yes all professional.
Olivia CH-NP & Dr. Katznelson make an excellent partnership & their years together is evident & optimal in care provided.
Always a good visit, well informed both by the doctor & PA. 1. Oliva is wonderful.
Dr. Katznelson has treated me since 2013 - every visit with him has left me feeling (and knowing) that I am receiving the best and highest level of care possible. I am honored and grateful to be his patient.
Dr. Katznelson noticed a change in my weight as a positive outcome to my surgery. He has always showed so much concern with me. I owe him my life. Thank you.
Dr. Katznelson does an outstanding job of putting one at ease and has outstanding communication skills. I feel blessed he is my physician.
Dr. Katznelson is exceptional doctor.
Wish Dr. Katznelson could be rated MORE THAN 5! He is an incredible physician, and friend as well -
Dr. Katznelson is very thorough!
I am so thankful for Dr. Katznelson and his entire team! What an amazing staff!
For me, he's the best doctor at Stanford. A real detective. I was spared surgery because of his expertise & thoroughness.
Dr. Katznelson is an excellent doctor who is caring and very helpful.
He was excellent!
The doctor verbalized my next visit, my next step. The doctor briefly summarized that's next and listened. The nurse didn't nor did she need to.
Dr. Katznelsonis one of the most outstanding care givers with whom I have had experience. His knowledge, patience and perseverance have helped me immeasurably!
Very very good and more than excellent thanks.
Excellent care and support.
Dr. Katznelson goes above and beyond.
Dr Katznelson spent 30+ mins with me.
Dr. Katznelson was great! Knowledgeable & caring.
Doctor Katznelson and his team are awesome. I owe my good health to him & Olivia Chu. I am forever grateful for their care and time they take to help me.
Dr. Katznelson is an excellent doctor. He is an excellent listener and really cares about how my husband (the patient) is doing. He is compassionate.
Fabulous.
I wanted to get a second opinion regarding my treatment plan from a non-Stanford doctor. After my experience with Dr. Katznelson, I feel confident in transferring my care to him.
Dr. Katznelson is awesome! & Olivia too.
The care provider called me the next day just to follow up on the information given to me and make sure I was able to get the medication an if I had any questions about the meds.
As always- great care all around. Like family!!
I've realized I have to do my homework so I know what to ask. Knowledge is not forthcoming automatically. Lab work was recommended at visit. No one followed thru.
All good.
Dr. Laurence Katznelson is everything a patient would want in a doctor. He is extremely knowledgeable, and he genuinely cares about providing.
Dr. Katznelson and his staff are all wonderful! They're so wonderful, that I drive 3 hours just to see them... when needed!
I tell people that Stanford is only place to get care.
have already sung your praises to friends
Very good!
Love my doctors!
Dr. Katznelson is an excellent doctor who has helped my husband a lot. His nurse, Olivia Chu, is also very helpful.
The dr. is amazing!
Dr. Katz-Nelson is the very best. I wish he were my regular internist for my total health situation.
Dr. Katznelson is an outstanding physician. He is an excellent communicator and extraordinarily kind and compassionate.
Stanford Hospital should be proud to have such a awesome doctor and team treating patients.
The NP actually called me to go over results of lab work and explained everything in terms I could understand. I appreciated it very much.
Great experience.
Spent 45 mins!!
Doctor Laurence Katznelson and NP Olivia Chu area great in their patient care and explanations!
He is an excellent doctor who REALLY cares. He has helped my husband tremendously.
We love Dr. Katznelson he is awesome!
Overall very good.
Kindness and cleanliness. Excellent.
Very comfortable atmosphere.
I am very happy with the staff, and hospital. I am in the best of hands.
The experience was very good attention and amiable from all personnel thank you very much.
I like that the MD has a consistent (same NP) & not a high turnover - important for continuity of care.
Felt my visit this time was very rushed. Usually it is better.
Wish I lived closer so I could see him again! Great assistants as well!
I had a very good experience with Dr. Katznelson. Knowledgeable, easy to talk to, patient. Very impressed.
Excellent.
Excellent experience.
Dr. Katznelson epitomizes why Stanford is so highly regarded.
The PA or resident on the case was very thorough and spent a lot of time w/me. Good experience.
Good.
Dr. K makes me feel special and he's like family & we've gone through so much together. I am alive because of him!
Best doc - spent 45 minutes. Great bedside manner. Dream doctor.
Dr. Katz and Olivia his PA are an excellent caring team.
Dr. Katznelson has the greatest patient-doctor rapport that I know of.
Very friendly love them.
Dr. Katznelson is an amazing, empathetic physician!!! We need to clone him.
Dr. Katz is an awesome dr. He is very caring -
Fellow was great to deal with listened very carefully. Physician was well informed by fellow - also caring.
I found this care provider awesome. He was able to point out things from an old MRI not told before.
Dr. Katznelson & Olivia Chu are great. Enjoy talking with him & her.
I was sent to Dr. K. by referral. A very stressful time due to my diagnosis, and all the staff was great!
Dr. Katz-Nelson is exemplary in every way!! Extraordinary.
How rare to find a dr. who admits "I'm not sure" and explains steps to be taken together to find an answer. Refreshing and inspiring.
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