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:

Charlene M. Prather, MD, MPH

Gastroenterology

Locations:
Center for Advanced Medicine
Barnes-Jewish West County Hospital – Medical Office Building 4

Kathleen “Kate” Pyatek, MS, PA-C

Gastroenterology

Locations:
Center for Advanced Medicine
Barnes-Jewish West County Hospital – Medical Office Building 4

Arvind Rengarajan, MD

Gastroenterology
Interventional Endoscopy

Locations:
Center for Advanced Medicine – South County
Barnes-Jewish Hospital
Barnes-Jewish West County Hospital
Missouri Baptist Medical Center

Juan Reyes Genere, MD

Juan Reyes Genere, MD

Gastroenterology
Inflammatory Bowel Disease
Interventional Endoscopy

Locations:
Barnes-Jewish Hospital
Barnes-Jewish West County Hospital
Missouri Baptist Medical Center

Benjamin Rogers

Gastroenterology

Richard P. Rood

Richard P. Rood, MD, FACP, FACG, AGAF, FASGE

Gastroenterology
Inflammatory Bowel Disease

Locations:
Center for Advanced Medicine Gastrointestinal Center
Barnes-Jewish West County Hospital – Medical Office Building 4

Deborah C. Rubin

Deborah C. Rubin, MD

Gastroenterology
Inflammatory Bowel Disease

Locations:
Center for Advanced Medicine Gastrointestinal Center

David A. Rudnick

David A. Rudnick, MD, PhD

Gastroenterology
Pediatric Gastroenterology

Locations:
St. Louis Children’s Hospital

Jose B. Saenz

Jose B. Saenz, MD, PhD

Gastroenterology

Locations:
Barnes-Jewish West County Hospital – Medical Office Building 1
Center for Advanced Medicine Endoscopy Center

Charles M. Samson

Charles M. Samson, MD

Gastroenterology
Pediatric Gastroenterology

Locations:
St. Louis Children’s Hospital
St. Louis Children’s Specialty Care Center – West County
Washington University Pediatric Specialty Care – Memorial Hospital Shiloh