Find a Doctor | Find a Practice | Find a Service | Testimonials | Contact Us | Appointment Request

You are here: Skip Navigation LinksHome | Gateway GI

Gateway GastroenterologySignature Medical Group

Gateway Gastroenterology

Gateway Gastroenterology

Gateway Gastroenterology is a group of eight board certified gastroenterologists.

Our goal is to is to provide outstanding care in a timely, courteous, and professional manner. Our mission is to aid in improving your digestive health and also to be a resource to your primary care physician in caring for you. All of our physicians are committed to ongoing education and will make every effort to provide you with the most up to date and thorough care possible.

We offer a wide variety of gastroenterology services including inpatient and outpatient consultation as well as a broad range of endoscopic procedures including upper endoscopy and colonoscopy.

David D. Benage, M.D.
Jeffrey T. Kreikemeier, M.D.
Loren H. Marshall, M.D.
Jeffrey E. Mathews, M.D.
Brian C. McMorrow, M.D.
Richard T. Riegel, M.D.
Andrew Y. Su, M.D.
Fred H. Williams, M.D.

Pay Your Bill Online

Secondary Providers

Desloge Outpatient Center
Main Office
121 St. Luke’s Center Drive, Suite 406
Chesterfield, MO 63017
Phone: 314-432-5900
Fax: 314-434-2679


Gateway Endoscopy Center
12855 North 40 Drive
St. Louis, MO 63141
Phone: 314-529-4900