General Gastroenterology

Chien-Huan Chen, MD, PhD
Professor of Medicine
Associate Director of Clinical Affairs
Director, General GI
Director, Patient Safety and Quality
Director, Small Bowel Endoscopy Program
- Phone: 314-747-2066
- Fax: 314-747-5871

Nicholas O. Davidson, MD, DSc
John E. and Adaline Simon Professor of Medicine and Developmental Biology
Chief, Division of Gastroenterology
Director, Digestive Disease Research Core Center
- Fax: 314-362-2505

Angela Gieseler, PA-C, MMS
Physician Assistant
- Phone: 314-747-2066, Press option 1
- Fax: 314-747-5871

C. Prakash Gyawali, MD, MRCP
Professor of Medicine
Director, GI Fellowship Training Program
Director, Neurogastroenterology and Motility Program
- Phone: 314-747-2066
- Fax: For Patient Related Faxes Please Use 314-747-1277. For Fellowship Related Faxes Please Use 314-362-3643
Patient-related faxes 314-747-1277
Fellowship-related faxes 314-362-3643

Devika Kapuria, MD, MBBS
Assistant Professor of Medicine
- Phone: For new patients, please call: 314-747-2066, option 1 For established patients, please call: 314-362-3903
- Fax: 314-747-5871