About Dr. Gilliam

Board Certified Gastroenterologist

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About Dr. Gilliam

Effective January 1, 2023, Dr. Gilliam is no longer accepting new patients.  He is still performing out patient procedures on a very limited basis.  Michiana Gastroenterology, Inc and all of his patients thank Dr. Gilliam for his many years of service to the Michiana community.

Oliver Gilliam, MD, FACG, is a gastroenterology specialist providing top-quality care at Michiana Gastroenterology, Inc. Dr. Gilliam serves patients at the offices in Plymouth and South Bend, Indiana, including conducting diagnostic testing and developing treatment plans for a wide range of digestive disorders and liver diseases.

Specializing in the management of esophageal disorders like Barrett’s esophagus and acid reflux, Dr. Gilliam customizes care plans using the latest treatments available. He is certified by the American Board of Internal Medicine (ABIM) and the American Board of Gastroenterology. He is a fellow of the American College of Gastroenterology.

Dr. Gilliam graduated from Louisiana State University Shreveport (LSUS), with his undergraduate and medical degree. He went on to complete his residency and fellowship training in gastroenterology and hepatology at Wayne State University (WSU) in Detroit, Michigan.

Known for his dedication to helping people understand their options for treatment, Dr. Gilliam enjoys spending time with patients and learning about their unique needs.