Northwest Ohio’s Largest Independent Gastroenterology Practice

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

Introducing Fibroscan

Monitor your liver health with painless, noninvasive FibroScan®

If you live with liver disease, you know how painful and invasive elastographies and biopsies can be. Northwest Ohio Gastroenterology and Endoscopy Center can examine your liver rapidly and painlessly with noninvasive FibroScan,® the first FDA-cleared device considered an aid to managing liver disease.

Our Physicians


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


Scott A. Corman, D.O.


Michael A. Pappas, M.D.