
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
- Phone: 314-362-2027
- Fax: 314-362-2505

David H. Alpers, MD
Emeritus William B. Kountz Professor of Medicine
Co-Director, Center for Human Nutrition
- Phone: 314-362-8943
- Fax: 314-362-8230

Surachai Amornsawadwattana, MD
Assistant Professor of Medicine
- Phone: 314-273-0401
- Fax: 314-362-2357

Chien-Huan Chen, MD, PhD
Professor of Medicine
Director, General Gastroenterology
Director, Patient Safety and Quality
Director, Small Bowel Endoscopy Program
- Phone: 314-362-1026
- Fax: 314-747-5871

Matthew Ciorba, MD
Professor of Medicine
Director, Inflammatory Bowel Diseases Program
Director, IBD Research
Associate Director, GI Fellowship Program and T32 Research
- Phone: 314-362-1026
- Fax: 314-747-5871

Jeffrey S. Crippin, MD
Professor of Medicine
Marilyn E. Bornefeld Chair in Gastrointestinal Research and Treatment
Associate Chairman for Clinical Programs
- Phone: 314-454-8160
- Fax: 314-454-5108

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
- Phone: 314-362-2027
- Fax: 314-362-2505

Brian K. Dieckgraefe, MD, PhD
Associate Professor of Medicine
Chief of Gastroenterology, St. Louis VA Medical Centers
- Phone: 314-289-6434
- Fax: 314-362-8959

Jaquelyn F. Fleckenstein, MD
Professor of Medicine
Director, Hepatology Program
Director, Advanced Hepatology Fellowship
- Phone: 314-747-0041
- Fax: 314-454-5108

C. Prakash Gyawali, MD, MRCP
Professor of Medicine
Director, GI Fellowship Training Program
Director, Neurogastroenterology and Motility Program
- Phone: 314-747-2913
- 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

Deborah Hiatt-Jensen, MSN, APRN, FNP-C
Adult Nurse Practitioner
- Phone: 314-747-2066
- Fax: 888-869-4437

Kevin Korenblat, MD
Professor of Medicine
Medical Director, Liver Transplantation
- Phone: 314-747-0041
- Fax: 314-454-5108

Vladimir Kushnir, MD
Professor of Medicine
Director, Endoscopic Research
Director, Bariatric Endoscopy
Director, Interventional Endoscopy
- Phone: 314-362-5038
- Fax: 314-747-1277

Gabriel Lang, MD
Associate Professor of Medicine
Director, Advanced Interventional Fellowship Program
- Phone: 314-362-3685
- Fax: 314-747-1277