Our Doctors

Loren H. Marshall, M.D.

Loren H. Marshall, M.D.

After receiving his B.S. in Biomedical Engineering from Northwestern University, Dr. Loren Marshall moved on to Vanderbilt University to obtain his M.D. four years later. He remained at Vanderbilt to complete a 3-year Internal Medicine residency, then proceeded to the University of Texas-Southwestern to complete a fellowship in Gastroenterology and Hepatology.

Following this Dr. Marshall moved to St Louis and completed a Therapeutic Endoscopy fellowship at Washington University.

He joined Gateway Gastroenterology in 1991 and is a member of the American Gastroenterological Association, the American College of Gastroenterology, and the American Society of Gastrointestinal Endoscopy. Dr. Marshall is Board Certified in Internal Medicine and Gastroenterology.