To make an appointment, call 314-747-2066.
Pediatric appointments, call 314-454-6173.
Washington University gastroenterology (GI) specialists have expertise in a comprehensive range of GI diseases of the upper tract—like the esophagus, stomach and small intestines (duodenum); the lower GI tract—like the large intestine, colon and rectum; and the hepatobiliary system—such as the liver, gall bladder, biliary tract and pancreas.
Our specialists work closely with Washington University gastrointestinal, transplant and colorectal surgeons to offer a full-range of treatment:
- Gastrointestinal cancer
- General gastroenterology
- Inflammatory bowel disease (IBD)
- Interventional endoscopy
- Liver disease (hepatology)
- Neurogastroenterology
![](https://physicians.wustl.edu/wp-content/uploads/2024/06/Al-Obaid-Lolwa_Gastro_04_1400x1930-280x386.jpg)
Lolwa Al-Obaid, MD
Liver Health (Hepatology)
Locations:
Center for Advanced Medicine Gastrointestinal Center
![Osama Altayar](https://physicians.wustl.edu/wp-content/uploads/2020/06/Osama-Altayar-280x386.jpeg)
Osama Altayar, MD
Gastroenterology
Locations:
Center for Advanced Medicine Gastrointestinal Center
Barnes-Jewish West County Hospital – Medical Office Building 4
![Surachai Amornsawadwattana](https://physicians.wustl.edu/wp-content/uploads/2020/06/Surachai-Amornsawadwattana-280x386.jpeg)
Surachai Amornsawadwattana, MD
Gastroenterology
Locations:
Center for Advanced Medicine Gastrointestinal Center
![Riad Raymond Azar](https://physicians.wustl.edu/wp-content/uploads/2020/06/Riad-Azar-280x386.jpg)
Riad Raymond Azar, MD
Gastroenterology
Locations:
Center for Advanced Medicine Endoscopy Center
Barnes-Jewish West County Hospital – Medical Office Building 2
![Ahmad Bazarbashi, MD](https://physicians.wustl.edu/wp-content/uploads/2021/09/Bazarbashi-Ahmad_Gastro_300-280x386.jpg)
Ahmad N. Bazarbashi, MD
Gastroenterology
Interventional Endoscopy
Locations:
Center for Advanced Medicine – South County
Barnes-Jewish Hospital
Barnes-Jewish West County Hospital
Missouri Baptist Medical Center
![Michael C. Bennett](https://physicians.wustl.edu/wp-content/uploads/2020/06/Michael-Bennett-280x386.jpeg)
Michael C. Bennett, MD
Gastroenterology
Nonsurgical Weight Loss
Weight Loss
Locations:
Barnes-Jewish West County Hospital – Medical Office Building 4
Center for Advanced Medicine – South County
![](https://physicians.wustl.edu/wp-content/uploads/2023/06/Berghoff-Christopher_Gastro__04_1400x1930-280x386.png)
Christopher Berghoff, PhD
Gastroenterology
Locations:
Center for Advanced Medicine
Barnes-Jewish West County Hospital
Center for Advanced Medicine – South County
![Elizabeth J. Blaney](https://physicians.wustl.edu/wp-content/uploads/2020/06/Elizabeth-Blaney-280x386.jpeg)
Elizabeth J. Blaney, MD
Gastroenterology
Locations:
Center for Advanced Medicine Gastrointestinal Center
Barnes-Jewish West County Hospital – Medical Office Building 1
![Jeffrey W. Brown](https://physicians.wustl.edu/wp-content/uploads/2020/06/Jeffrey-Brown-280x386.jpeg)
Jeffrey W. Brown, MD, PhD
Gastroenterology
Locations:
Barnes-Jewish Hospital
Barnes-Jewish West County Hospital