About
Our board-certified gastroenterologists specialize in the prevention, diagnosis and treatment of digestive tract and liver disorders, including conditions involving the esophagus, stomach, small intestine, colon, pancreas, and gallbladder.
The practice’s experienced physicians, nurses and office team are committed to providing exceptional patient care.
Serving our community with offices on St. Luke’s Hospital campus and at WingHaven in O'Fallon.
Locations & Contact
Hours
Providers
View all providersDavid S. Lotsoff, M.D.
Gastroenterology, Internal Medicine
Elie J. Chahla, M.D.
Gastroenterology, Internal Medicine
Jennifer M. Humphrey, FNP
Nurse Practitioner, Gastroenterology
Sajid M. Zafar, M.D.
Gastroenterology, Internal Medicine
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