Ann Chen

Gastroenterologist

Pancreas specialist, Endoscopic ultrasound specialist, Therapeutic endoscopy specialist

Digestive Health Center

  • 900 Blake Wilbur Drive
  • Palo Alto, CA 94304
  • Phone: 650-736-5555
Learn More About the Clinic Getting Here Make An Appointment

Gastrointestinal (GI) Cancer Program

  • 875 Blake Wilbur Drive
  • Palo Alto, CA 94304
  • Phone: 650-498-6000
Learn More About the Clinic Getting Here Make An Appointment

Digestive Health - Endoscopy Suite at Stanford

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-736-5555
Learn More About the Clinic Getting Here Make An Appointment

Digestive Health - Endoscopy Suite in Redwood City

  • 450 Broadway Street
  • Redwood City, CA 94063
  • Phone: 650-736-5555
Learn More About the Clinic Getting Here Make An Appointment

Professional Education

Fellowship: University of California Irvine (2007) CA

Fellowship: California Pacific Medical Center (2006) CA

Residency: California Pacific Medical Center (2003) CA

Internship: California Pacific Medical Center (2001) CA

Board Certification: Gastroenterology, American Board of Internal Medicine (2006)

MD, UC Irvine, Advanced Endoscopy and Endo Ultrasound (EUS) (2007)

Medical Education: Albert Einstein College of Medicine (2000) NY

Research Fellowship, Harvard/Mass General Hospital, Immunology (1999)

B.S., MIT, Molecular Biology (1995)

Honors & Awards

Distinction in Transplant Immunology Research, Albert Einstein College of Medicine (2000)

Most Promising Young Investigator's Award, 5th Congress of the International Xenotransplantation Association (1999)

Howard Hughes Medical Institiute Research Fellow, Harvard Med School / Massachusetts General Hospital (1997-1998)

Administrative Appointments

Director of Endoscopic Ultrasound, Stanford University School of Medicine, 2010

Chairperson, Annual Scientific Program Committee (EUS section), American Society of Gastrointestinal Endoscopy, 2012

Chairperson, EUS/MRI/Cross-sectional Imaging section, American Gastroenterological Association, 2013

Clinical Instructor, University of California, Irvine, 2006

Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Hospital & Clinics patient, you 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.

Locally advanced gastric cancer complicated by mesenteric invasion and intestinal malrotation.
Huang, R. J., Visser, B. C., Chen, A. M., & Ladabaum, U. (2014). Locally advanced gastric cancer complicated by mesenteric invasion and intestinal malrotation. Digestive diseases and sciences, 59(2), 267-269.

Outcomes of repeat colonoscopy in patients with polyps referred for surgery without biopsy-proven cancer
Friedland, S., Banerjee, S., Kochar, R., Chen, A., & Shelton, A. (2014). Outcomes of repeat colonoscopy in patients with polyps referred for surgery without biopsy-proven cancer. GASTROINTESTINAL ENDOSCOPY, 79(1), 101-107.

Metabolomic-derived novel cyst fluid biomarkers for pancreatic cysts: glucose and kynurenine.
Park, W. G., Wu, M., Bowen, R., Zheng, M., Fitch, W. L., & Peltz, G. (2013). Metabolomic-derived novel cyst fluid biomarkers for pancreatic cysts: glucose and kynurenine. Gastrointestinal endoscopy, 78(2), 295-302 e2.

Endoscopic management of nonlifting colon polyps.
Friedland, S., Shelton, A., Kothari, S., Kochar, R., Chen, A., & Banerjee, S. (2013). Endoscopic management of nonlifting colon polyps. Diagnostic and therapeutic endoscopy, 2013, 412936-?.

Pancreatic Neuroendocrine Tumors: Radiographic Calcifications Correlate with Grade and Metastasis
Poultsides, G. A., Huang, L. C., Chen, Y., Visser, B. C., Pai, R. K., & Norton, J. A. (2012). Pancreatic Neuroendocrine Tumors: Radiographic Calcifications Correlate with Grade and Metastasis. ANNALS OF SURGICAL ONCOLOGY, 19(7), 2295-2303.

Endoscopic mucosal resection with an over-the-counter hyaluronate preparation
Friedland, S., Kothari, S., Chen, A., Park, W., & Banerjee, S. (2012). Endoscopic mucosal resection with an over-the-counter hyaluronate preparation. GASTROINTESTINAL ENDOSCOPY, 75(5), 1040-1044.

Diagnostic accuracy of cyst fluid amphiregulin in pancreatic cysts
Tun, M. T., Pai, R. K., Kwok, S., Dong, A., Gupta, A., & Park, W. G. (2012). Diagnostic accuracy of cyst fluid amphiregulin in pancreatic cysts. BMC GASTROENTEROLOGY, 12.

Cryotherapy for Barrett's esophagus: Who, how, and why?
Chen, A. M., & Pasricha, P. J. (2011). Cryotherapy for Barrett's esophagus: Who, how, and why?. Gastrointestinal endoscopy clinics of North America, 21(1), 111-118.

Suppurative (Phlegmonous) Gastritis Presenting as a Gastric Mass
Munroe, C. A., & Chen, A. (2010). Suppurative (Phlegmonous) Gastritis Presenting as a Gastric Mass. DIGESTIVE DISEASES AND SCIENCES, 55(1), 11-13.

Double balloon enteroscopy detects small bowel mass lesions missed by capsule endoscopy
Ross, A., Mehdizadeh, S., Tokar, J., Leighton, J. A., Kamal, A., & Semrad, C. (2008). Double balloon enteroscopy detects small bowel mass lesions missed by capsule endoscopy. DIGESTIVE DISEASES AND SCIENCES, 53(8), 2140-2143.

Predictive Value of Pancreatic Ductal Dilation on Endoscopic Ultrasound Diagnosis of Pancreatic Cancer
Nguyen W, Chen AM, Chen W, Lee J, Muthusamy V, & Chang K. (2007). Predictive Value of Pancreatic Ductal Dilation on Endoscopic Ultrasound Diagnosis of Pancreatic Cancer. Gastrointestinal Endoscopy, 65(5).

What is the learning curve associated with double-balloon enteroscopy? Technical details and early experience in 6 US tertiary care centers
Mehdizadeh, S., Ross, A., Gerson, L., Leighton, J., Chen, A., & Lo, S. K. (2006). What is the learning curve associated with double-balloon enteroscopy? Technical details and early experience in 6 US tertiary care centers. GASTROINTESTINAL ENDOSCOPY, 64(5), 740-750.

Porcine stem cell factor facilitates long-lasting porcine hematopoietic engraftment in murine recipients
Abe, M., Chen, A. M., Qi, J., Sachs, D. H., Sykes, M., & Yang, Y. G. (2000). Porcine stem cell factor facilitates long-lasting porcine hematopoietic engraftment in murine recipients. TRANSPLANTATION PROCEEDINGS, 32(5), 1047-1047.

Porcine stem cell engraftment and seeding of murine thymus with class II+ cells in mice expressing porcine cytokines - toward tolerance induction across discordant xenogeneic barriers
Chen, A. M., Zhou, Y., Swenson, K., Sachs, D. H., Sykes, M., & Yang, Y. G. (2000). Porcine stem cell engraftment and seeding of murine thymus with class II+ cells in mice expressing porcine cytokines - toward tolerance induction across discordant xenogeneic barriers. TRANSPLANTATION, 69(12), 2484-2490.

Development and analysis of transgenic mice expressing porcine hematopoietic cytokines: a model for achieving durable porcine hematopoietic chimerism across an extensive xenogeneic barrier
Yang, Y. G., Chen, A. M., Garrett, L. J., Sergio, J. J., Theodore, P., & Sykes, M. (2000). Development and analysis of transgenic mice expressing porcine hematopoietic cytokines: a model for achieving durable porcine hematopoietic chimerism across an extensive xenogeneic barrier. XENOTRANSPLANTATION, 7(1), 58-64.

Role of antibody-independent complement activation in rejection of porcine bone marrow cells in mice
Yang, Y. G., Chen, A. M., Sergio, J. J., Zhou, Y., & Sykes, M. (2000). Role of antibody-independent complement activation in rejection of porcine bone marrow cells in mice. TRANSPLANTATION, 69(1), 163-165.

Routine myocardial revascularization with the radial artery: A multicenter experience
Chen, A. M., Brodman, R. F., Frame, R., Graver, L. M., Tranbaugh, R. F., & Cohen, B. (1998). Routine myocardial revascularization with the radial artery: A multicenter experience. JOURNAL OF CARDIAC SURGERY, 13(5), 318-327.