Northwest Ohio’s Largest Independent Gastroenterology Practice

Proudly serving our community for 30 years.

Northwest Ohio Gastroenterology Associates

Call: 419.471.1350 - Serving Toledo, Northwest Ohio & Southeast Michigan

Northwest Ohio Gastroenterology Associates is a highly respected private practice gastroenterology group in the Toledo area. NOGA consists of four board certified physicians and three certified nurse practitioners complemented by a highly trained clinical support staff. Our reputation throughout the entire metropolitan Toledo area has given us the unique ability to provide comprehensive care to the entire region. Learn More >

For patients & physicians who wish to schedule an endoscopic procedure (including screening colonoscopy without an office visit), Call our Direct Endoscopy Hotline: 419.471.1696

Our Physicians


David L. Zack, D.O., F.A.C.G.


Scott A. Corman, D.O.


Michael A. Pappas, M.D.