Aijaz Ahmed, MD

Hepatologist, Transplant hepatologist

Associate Professor of Medicine (Gastroenterology and Hepatology) at the Stanford University Medical Center

Liver Transplant Program

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-498-7878
Learn More About the Clinic Getting Here Make An Appointment

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

Liver Clinic (Hepatology)

  • 300 Pasteur Drive
  • Stanford, CA 94305
  • Phone: 650-723-6961
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in South Lake Tahoe

  • 2170 South Avenue
  • South Lake Tahoe, CA 96158
  • Phone: 530-543-5985
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in San Luis Obispo

  • 437 Marsh Street
  • San Luis Obispo, CA 94301
  • Phone: 805-434-3458
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in Fresno

  • 1377 E Herndon Avenue
  • Fresno, CA 93720
  • Phone: 650-725-1988
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in Santa Maria

  • 525 E Plaza Drive
  • Santa Maria, CA 93454
  • Phone: 805-434-3458
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in Templeton, 1310 Las Tablas

  • 1310 Las Tablas Road
  • Templeton, CA 93465
  • Phone: 805-434-3458
Learn More About the Clinic Getting Here Make An Appointment

Digestive Health Center - Endoscopy Suite at Stanford

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

Liver Transplant Program in Templeton, 1255 Las Tablas

  • 1255 Las Tablas Road
  • Templeton, CA 93465
  • Phone: 805-434-3458
Learn More About the Clinic Getting Here Make An Appointment

Liver Transplant Program in Henderson, NV

  • 2865 Siena Heights Drive
  • Henderson, NV 89052
  • Phone: 650-725-1988
Learn More About the Clinic Getting Here Make An Appointment

Digestive Health Center in Redwood City (Endoscopy Suite)

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

Professional Education

Internship: Dow Medical College (1991) Pakistan

Fellowship: Stanford University School of Medicine (1999) CA

Board Certification: Transplant Hepatology, American Board of Internal Medicine (2010)

Board Certification: Gastroenterology, American Board of Internal Medicine (2000)

Residency: Brown University Program (1996) RI

Internship: University of Minnesota School of Medicine (1993) MN

Internship: New York Medical College (1992) NY

Medical Education: Dow Medical College (1990) Pakistan

Primary Surgical Resection Versus Liver Transplantation for Transplant-Eligible Hepatocellular Carcinoma Patients
Wong, R. J., Wantuck, J., Valenzuela, A., Ahmed, A., Bonham, C., & Nguyen, M. H. (2014). Primary Surgical Resection Versus Liver Transplantation for Transplant-Eligible Hepatocellular Carcinoma Patients. DIGESTIVE DISEASES AND SCIENCES, 59(1), 183-191.

Clinical Presentation and Survival of Asian and Non-Asian Patients with HCV-Related Hepatocellular Carcinoma
Yip, B., Wantuck, J. M., Kim, L. H., Wong, R. J., Ahmed, A., & Nguyen, M. H. (2014). Clinical Presentation and Survival of Asian and Non-Asian Patients with HCV-Related Hepatocellular Carcinoma. DIGESTIVE DISEASES AND SCIENCES, 59(1), 192-200.

Both HCV and HBV are Major Causes of Liver Cancer in Southeast Asians
Lin, H., Ha, N. B., Ahmed, A., Ayoub, W., Daugherty, T. J., & Nguyen, M. H. (2013). Both HCV and HBV are Major Causes of Liver Cancer in Southeast Asians. JOURNAL OF IMMIGRANT AND MINORITY HEALTH, 15(6), 1023-1029.

Low incidence of hepatitis B e antigen seroconversion in patients treated with oral nucleos(t)ides in routine practice.
Lin, B., Ha, N. B., Liu, A., Trinh, H. N., Nguyen, H. A., & Nguyen, M. H. (2013). Low incidence of hepatitis B e antigen seroconversion in patients treated with oral nucleos(t)ides in routine practice. Journal of gastroenterology and hepatology, 28(5), 855-860.

Low hepatitis B envelope antigen seroconversion rate in chronic hepatitis B patients on long-term entecavir 0.5 mg daily in routine clinical practice
Liu, A., Ha, N. B., Lin, B., Yip, B., Trinh, H. N., & Nguyen, M. H. (2013). Low hepatitis B envelope antigen seroconversion rate in chronic hepatitis B patients on long-term entecavir 0.5 mg daily in routine clinical practice. EUROPEAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY, 25(3), 338-343.

Donor Diabetes Mellitus Is an Independent Risk Factor for Graft Loss in HCV Positive but Not HCV Negative Liver Transplant Recipients
Wu, Y., Ahmed, A., & Kamal, A. (2013). Donor Diabetes Mellitus Is an Independent Risk Factor for Graft Loss in HCV Positive but Not HCV Negative Liver Transplant Recipients. DIGESTIVE DISEASES AND SCIENCES, 58(2), 574-578.

Incidence of Hepatocellular Carcinoma Among US Patients With Cirrhosis of Viral or Nonviral Etiologies
Mair, R. D., Valenzuela, A., Ha, N. B., Ayoub, W. S., Daugherty, T., & Nguyen, M. H. (2012). Incidence of Hepatocellular Carcinoma Among US Patients With Cirrhosis of Viral or Nonviral Etiologies. CLINICAL GASTROENTEROLOGY AND HEPATOLOGY, 10(12), 1412-1417.

Tenofovir Monotherapy and Tenofovir Plus Entecavir Combination as Rescue Therapy for Entecavir Partial Responders
Yip, B., Chaung, K., Wong, C. R., Trinh, H. N., Nguyen, H. A., & Nguyen, M. H. (2012). Tenofovir Monotherapy and Tenofovir Plus Entecavir Combination as Rescue Therapy for Entecavir Partial Responders. DIGESTIVE DISEASES AND SCIENCES, 57(11), 3011-3016.

High Frequency of Recurrent Viremia After Hepatitis B e Antigen Seroconversion and Consolidation Therapy
Chaung, K. T., Ha, N. B., Trinh, H. N., Garcia, R. T., Nguyen, H. A., & Nguyen, M. H. (2012). High Frequency of Recurrent Viremia After Hepatitis B e Antigen Seroconversion and Consolidation Therapy. JOURNAL OF CLINICAL GASTROENTEROLOGY, 46(10), 865-870.

Risk factors for hepatocellular carcinoma in patients with chronic liver disease: a case-control study
Ha, N. B., Ha, N. B., Ahmed, A., Ayoub, W., Daugherty, T. J., & Nguyen, M. H. (2012). Risk factors for hepatocellular carcinoma in patients with chronic liver disease: a case-control study. CANCER CAUSES & CONTROL, 23(3), 455-462.

Prospective study of risk factors for hepatitis C virus acquisition by Caucasian, Hispanic, and Asian American patients
Ho, E. Y., Ha, N. B., Ahmed, A., Ayoub, W., Daugherty, T., & Nguyen, M. H. (2012). Prospective study of risk factors for hepatitis C virus acquisition by Caucasian, Hispanic, and Asian American patients. JOURNAL OF VIRAL HEPATITIS, 19(2), E105-E111.

Comparison of the Frequency of Coronary Artery Disease in Alcohol-Related Versus Non-Alcohol-Related Endstage Liver Disease
Patel, S., Kiefer, T. L., Ahmed, A., Ali, Z. A., Tremmel, J. A., & Fearon, W. F. (2011). Comparison of the Frequency of Coronary Artery Disease in Alcohol-Related Versus Non-Alcohol-Related Endstage Liver Disease. AMERICAN JOURNAL OF CARDIOLOGY, 108(11), 1552-1555.

High Rate of Complete Viral Suppression With Combination Therapy in Patients With Chronic Hepatitis B and Prior Treatment Failure
Wong, C. R., Trinh, H. N., Yip, B., Nguyen, H. A., Garcia, R. T., & Nguyen, M. H. (2011). High Rate of Complete Viral Suppression With Combination Therapy in Patients With Chronic Hepatitis B and Prior Treatment Failure. JOURNAL OF CLINICAL GASTROENTEROLOGY, 45(10), 900-905.

Ethnic Differences in Viral Dominance Patterns in Patients with Hepatitis B Virus and Hepatitis C Virus Dual Infection
Nguyen, L. H., Ko, S., Wong, S. S., Tran, P. S., Trinh, H. N., & Nguyen, M. H. (2011). Ethnic Differences in Viral Dominance Patterns in Patients with Hepatitis B Virus and Hepatitis C Virus Dual Infection. HEPATOLOGY, 53(6), 1839-1845.

Diabetes Mellitus Increases the Risk of Mortality Following Liver Transplantation Independent of MELD Score
Samuelson, A. L., Lee, M., Kamal, A., Keeffe, E. B., & Ahmed, A. (2010). Diabetes Mellitus Increases the Risk of Mortality Following Liver Transplantation Independent of MELD Score. DIGESTIVE DISEASES AND SCIENCES, 55(7), 2089-2094.

Pseudomyxoma Peritonei Masquerading As Ascites Secondary to Alcoholic Cirrhosis
Nguyen, T., & Ahmed, A. (2009). Pseudomyxoma Peritonei Masquerading As Ascites Secondary to Alcoholic Cirrhosis. DIGESTIVE DISEASES AND SCIENCES, 54(10), 2053-2055.

Transarterial Chemoinfusion for Hepatocellular Carcinoma as Downstaging Therapy and a Bridge toward Liver Transplantation
De Luna, W., Sze, D. Y., Ahmed, A., Ha, B. Y., Ayoub, W., & Nguyen, M. H. (2009). Transarterial Chemoinfusion for Hepatocellular Carcinoma as Downstaging Therapy and a Bridge toward Liver Transplantation. AMERICAN JOURNAL OF TRANSPLANTATION, 9(5), 1158-1168.

Ultra-Deep Pyrosequencing of Hepatitis B Virus Quasispecies from Nucleoside and Nucleotide Reverse-Transcriptase Inhibitor (NRTI)-Treated Patients and NRTI-Naive Patients
Margeridon-Thermet, S., Shulman, N. S., Ahmed, A., Shahriar, R., Liu, T., & Shafer, R. W. (2009). Ultra-Deep Pyrosequencing of Hepatitis B Virus Quasispecies from Nucleoside and Nucleotide Reverse-Transcriptase Inhibitor (NRTI)-Treated Patients and NRTI-Naive Patients. JOURNAL OF INFECTIOUS DISEASES, 199(9), 1275-1285.

The Asymptomatic Outpatient with Abnormal Liver Function Tests
Krier, M., & Ahmed, A. (2009). The Asymptomatic Outpatient with Abnormal Liver Function Tests. CLINICS IN LIVER DISEASE, 13(2), 167-?.

Adenovirus-Induced Acute Liver Failure
Rothenberg, M., Cheung, R., & Ahmed, A. (2009). Adenovirus-Induced Acute Liver Failure. DIGESTIVE DISEASES AND SCIENCES, 54(2), 218-221.

Management of Biliary Strictures Following Liver Transplantation
Alexopoulos, S. P., Henningsen, J. A., Jeffrey, R. B., Bonham, C. A., Ahmed, A., & Gonzalez, S. A. (2009). Management of Biliary Strictures Following Liver Transplantation. DIGESTIVE DISEASES AND SCIENCES, 54(1), 25-27.

Prevalence of Colorectal Neoplasms in Asian Americans
Lam, K. D., Garcia, R. T., Nguyen, L. H., Trinh, H., Triadafilopoulos, G., & Nguyen, M. H. (2009). Prevalence of Colorectal Neoplasms in Asian Americans. DIGESTIVE DISEASES AND SCIENCES, 54(1), 160-167.

Bidirectionally Adjustable TIPS Reduction by Parallel Stent and Stent-Graft Deployment
Sze, D. Y., Hwang, G. L., Kao, J. S., Frisoli, J. K., Kee, S. Tw., & Ahmed, A. (2008). Bidirectionally Adjustable TIPS Reduction by Parallel Stent and Stent-Graft Deployment. JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY, 19(11), 1653-1658.

Long-term survival of patients with unresectable hepatocellular carcinoma treated with transcatheter arterial chemoinfusion
Ha, B. Y., Ahmed, A., Sze, D. Y., Razavi, M. K., Simpson, N., & Nguyen, M. H. (2007). Long-term survival of patients with unresectable hepatocellular carcinoma treated with transcatheter arterial chemoinfusion. ALIMENTARY PHARMACOLOGY & THERAPEUTICS, 26(6), 839-846.

Current indications and contraindications for liver transplantation.
Ahmed, A., & Keeffe, E. B. (2007). Current indications and contraindications for liver transplantation. Clinics in liver disease, 11(2), 227-247.

Dermatologic disorders associated with chronic hepatitis C: Effect of interferon therapy
Berk, D. R., Bayliss Mallory, S., Keeffe, E. B., & Ahmed, A. (2007). Dermatologic disorders associated with chronic hepatitis C: Effect of interferon therapy. CLINICAL GASTROENTEROLOGY AND HEPATOLOGY, 5(2), 142-151.

Global transcriptional response to interferon is a determinant of HCV treatment outcome and is modified by race
He, X.-S., Ji, X., Hale, M. B., Cheung, R., Ahmed, A., & Greenberg, H. B. (2006). Global transcriptional response to interferon is a determinant of HCV treatment outcome and is modified by race. HEPATOLOGY, 44(2), 352-359.

Progressive asymptomatic occlusion of a TIPS in a patient with Budd-Chiari syndrome
Sze, D. Y., Frisoli, J. K., Macksood, D. J., Dovichi, E. A., Ahmed, A., & Keeffe, E. B. (2006). Progressive asymptomatic occlusion of a TIPS in a patient with Budd-Chiari syndrome. JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY, 17(4), 737-739.

Portal, spienic, and superior mesenteric vein thrombosis in a patient with latent essential thrombocythemia and hyperhomocysteinemia
Berk, D. R., & Ahmed, A. (2006). Portal, spienic, and superior mesenteric vein thrombosis in a patient with latent essential thrombocythemia and hyperhomocysteinemia. JOURNAL OF CLINICAL GASTROENTEROLOGY, 40(3), 227-228.

Endoscopic approach to the treatment of gastrointestinal bleeding.
Lim, J. K., & Ahmed, A. (2004). Endoscopic approach to the treatment of gastrointestinal bleeding. Techniques in vascular and interventional radiology, 7(3), 123-129.

Older age and liver transplantation: A review
Keswani, R. N., Ahmed, A., & Keeffe, E. B. (2004). Older age and liver transplantation: A review. LIVER TRANSPLANTATION, 10(8), 957-967.

Chronic hepatitis C with normal aminotransferase levels
Ahmed, A., & Keeffe, E. B. (2004). Chronic hepatitis C with normal aminotransferase levels. GASTROENTEROLOGY, 126(5), 1409-1415.

Prophylaxis against chemotherapy-induced reactivation of hepatitis B virus infection with lamivudine
Simpson, N. D., Simpson, P. W., Ahmed, A. M., Nguyen, M. H., Garcia, G., & Ahmed, A. (2003). Prophylaxis against chemotherapy-induced reactivation of hepatitis B virus infection with lamivudine. JOURNAL OF CLINICAL GASTROENTEROLOGY, 37(1), 68-71.

The epidemiology of hepatitis C virus infection
Yen, T., Keeffe, E. B., & Ahmed, A. (2003). The epidemiology of hepatitis C virus infection. JOURNAL OF CLINICAL GASTROENTEROLOGY, 36(1), 47-53.

Update on chronic hepatitis C.
Ahmed, A., & Keeffe, E. B. (2003). Update on chronic hepatitis C. Comprehensive therapy, 29(4), 224-232.

Hepatitis C virus and liver transplantation.
Ahmed, A., & Keeffe, E. B. (2001). Hepatitis C virus and liver transplantation. Clinics in liver disease, 5(4), 1073-1090.

Liver transplantation: Evolving patient selection criteria
Yu, A. S., Ahmed, A., & Keeffe, E. B. (2001). Liver transplantation: Evolving patient selection criteria. CANADIAN JOURNAL OF GASTROENTEROLOGY, 15(11), 729-738.

Delayed fatal hemorrhage from pseudoaneurysm of the hepatic artery after percutaneous liver biopsy
Ahmed, A., Samuels, S. L., Keeffe, E. B., & Cheung, R. C. (2001). Delayed fatal hemorrhage from pseudoaneurysm of the hepatic artery after percutaneous liver biopsy. AMERICAN JOURNAL OF GASTROENTEROLOGY, 96(1), 233-237.

A novel endoscopic appearance of idiopathic eosinophilic esophagitis
Ahmed, A., Matsui, S., & Soetikno, R. (2000). A novel endoscopic appearance of idiopathic eosinophilic esophagitis. ENDOSCOPY, 32(6), S33-S33.

The differential diagnosis of eosinophilic esophagitis
Ahmad, M., Soetikno, R. M., & Ahmed, A. (2000). The differential diagnosis of eosinophilic esophagitis. JOURNAL OF CLINICAL GASTROENTEROLOGY, 30(3), 242-244.

Management of gallstones and their complications
Ahmed, A., Cheung, R. C., & Keeffe, E. B. (2000). Management of gallstones and their complications. AMERICAN FAMILY PHYSICIAN, 61(6), 1673-1680.

Differential diagnosis of gallstone-induced complications
Ahmad, M., Cheung, R. C., Keeffe, E. B., & Ahmed, A. (2000). Differential diagnosis of gallstone-induced complications. SOUTHERN MEDICAL JOURNAL, 93(3), 261-264.

Cost-effective evaluation of acute viral hepatitis
Ahmed, A., & Keeffe, E. B. (2000). Cost-effective evaluation of acute viral hepatitis. WESTERN JOURNAL OF MEDICINE, 172(1), 29-32.

Novel endoscopic approach for removal of a rectal foreign body
Ahmed, A., & Cummings, S. A. (1999). Novel endoscopic approach for removal of a rectal foreign body. GASTROINTESTINAL ENDOSCOPY, 50(6), 872-874.

Overview of interferon therapy for chronic hepatitis C.
Ahmed, A., & Keeffe, E. B. (1999). Overview of interferon therapy for chronic hepatitis C. Clinics in liver disease, 3(4), 757-773.

A novel technique for endoscopic removal of expandable biliary Wallstent
Ahmed, A., Keeffe, E. B., & Imperial, J. C. (1999). A novel technique for endoscopic removal of expandable biliary Wallstent. GASTROINTESTINAL ENDOSCOPY, 50(2), 279-281.

Should we throw fat on the fire? Comment
Ahmed, A., & Triadafilopoulos, G. (1999). Should we throw fat on the fire? Comment. INFLAMMATORY BOWEL DISEASES, 5(3), 236-237.

Treatment strategies for chronic hepatitis C: Update since the 1997 National Institutes of Health Consensus Development Conference
Ahmed, A., & Keeffe, E. B. (1999). Treatment strategies for chronic hepatitis C: Update since the 1997 National Institutes of Health Consensus Development Conference. JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 14, S12-S18.

Tuberculous peritonitis: Fatality associated with delayed diagnosis
Ahmad, M., & Ahmed, A. (1999). Tuberculous peritonitis: Fatality associated with delayed diagnosis. SOUTHERN MEDICAL JOURNAL, 92(4), 406-408.

An uncommon aetiology of perforated gastric ulcer
Ahmad, M., Vaidyan, P., & Ahmed, A. (1999). An uncommon aetiology of perforated gastric ulcer. POSTGRADUATE MEDICAL JOURNAL, 75(880), 113-114.

Lamivudine therapy for chemotherapy-induced reactivation of hepatitis B virus infection
Ahmed, A., & Keeffe, E. B. (1999). Lamivudine therapy for chemotherapy-induced reactivation of hepatitis B virus infection. AMERICAN JOURNAL OF GASTROENTEROLOGY, 94(1), 249-251.

Asymptomatic elevation of aminotransferase levels and fatty liver secondary to heterozygous hypobetalipoproteinemia
Ahmed, A., & Keeffe, E. B. (1998). Asymptomatic elevation of aminotransferase levels and fatty liver secondary to heterozygous hypobetalipoproteinemia. AMERICAN JOURNAL OF GASTROENTEROLOGY, 93(12), 2598-2599.

Bloody diarrhea caused by Plesiomonas shigelloides proctitis in a human immunodeficiency virus-infected patient
Ahmad, M., Aggarwal, M., & Ahmed, A. (1998). Bloody diarrhea caused by Plesiomonas shigelloides proctitis in a human immunodeficiency virus-infected patient. CLINICAL INFECTIOUS DISEASES, 27(3), 657-657.

A fatal case of Rhodotorula meningitis in AIDS.
Ahmed, A., Aggarwal, M., Chiu, R., Ramratnam, B., Rinaldi, M., & Flanigan, T. P. (1998). A fatal case of Rhodotorula meningitis in AIDS. Medicine and health, Rhode Island, 81(1), 22-23.

Splenic rupture: An unusual complication of colonoscopy
Ahmed, A., Eller, P. M., & Schiffman, F. J. (1997). Splenic rupture: An unusual complication of colonoscopy. AMERICAN JOURNAL OF GASTROENTEROLOGY, 92(7), 1201-1204.