Mercy Clinic Gastroenterology - Mercy Hospital

615 S. New Ballas Road
Suite 1200
St. Louis, MO 63141
Fax: (314) 251-2885
Hours of Operation:
Monday-Friday: 9 a.m. - 4:30 p.m.
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Mercy Clinic Gastroenterology in St. Louis, Mo., employs gastroenterologists that are able to diagnosis and treatment diseases of the esophagus, stomach, small intestine, colon, liver, gall bladder and pancreas. Our doctors offer a broad range of endoscopic procedures, as well as expertise in biliary endoscopy, endoscopic ultrasound and management of chronic liver disease.

Our facilities are located throughout the St. Louis and St. Charles metropolitan areas. Our locations include Mercy Hospital St. Louis, offices in Chesterfield, Clayton-Clarkson, Lake St. Louis and Zumbehl Road and two satellite endoscopy centers. The centers are staffed by highly experienced, board-certified endoscopists, anesthesiologists and registered nurses specially trained in endoscopy.

Mercy Clinic Gastroenterology physicians, nurses and staff are committed to delivering the highest quality of health care to patients while maintaining a commitment to clinical excellence. To schedule a procedure, please call 314-387-2321.


Download Our Procedure Preperation Guides:
Colonoscopy Instructions
Upper Endoscopy Instructions

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Learn your risks, how the procedure works and when to schedule one.

Office Locations

Mercy Clinic Gastroenterology - Zumbehl Road

Mercy Clinic Gastroenterology - Mercy Hospital

Mercy Clinic Gastroenterology - Lake Saint Louis

Our Providers

Paul E. Buse, MD, Mercy
Gastroenterology
Michael J. Cleary, MD, Mercy
Gastroenterology
David H. Cort, MD, Mercy
Gastroenterology
Alicia M. Dixon, PA, Mercy
Gastroenterology
Mercy Clinic
Parul J. Gor, MD, Mercy
Gastroenterology
Mercy Clinic
Layla Hajjafar, MD, Mercy
Gastroenterology
Mercy Clinic
Rebecca L. Howard, PA, Mercy
Gastroenterology
Mercy Clinic
Kathleen Jane Keithley, PA, Mercy
Gastroenterology
Mercy Clinic
David S. Lotsoff, MD, Mercy
Gastroenterology
James H. Petersen, MD, Mercy
Gastroenterology
Karen H. Platt, PA, Mercy
Gastroenterology
Mercy Clinic
Rajesh Sudhir Shah, MD, Mercy
Gastroenterology
David T. Walden, MD, Mercy
Gastroenterology
Bruce H. Witte, MD, Mercy
Gastroenterology
Michael James Zerega, MD, Mercy
Gastroenterology