Nicholas O. Davidson, MD, DSc
Chief, Division of Gastroenterology
Chien-Huan Chen, MD, PhD
Director, General Gastroenterology

For appointments, call 314-747-2066 
Toll free: 1-800-858-3541

Washington University luminal, or general, gastroenterologists provide expert specialty care for motility disorders along the entire gastrointestinal (GI) tract from swallowing to bowel function including disorders of the lumen, or lining of the GI tract and luminal immune disorders such as celiac disease.

Services include treatment for:

  • Celiac disease
  • Diverticulitis
  • Gastrointestinal bleeding
  • Gastric ulcers
  • Gastric esophageal reflux disease (GERD)
  • Hereditary Hemorrhagic Telangiectasis (HHT)


Gastroenterology Psychology