Individual provider · Type 1 NPI

Mark D. Gretsinger, MD

Gastroenterology Physician · Toledo, OH

NPI number 1407843758 Active

Practice location

3439 Granite Cir
Toledo, OH 43617-1161

Call (419) 843-7996 Map

Fax (419) 841-7725

Specialties and licenses

TaxonomyCodeLicense
Gastroenterology Physician Primary 207RG0100X35051729G (OH)

Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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About NPI 1407843758

Mark D. Gretsinger, MD's National Provider Identifier is 1407843758, issued on Oct 3, 2005. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Toledo, OH. The record was last updated on Sep 29, 2026.