Dr. Michael Zerega, MD

With 21 years of practice, Dr. Michael Zerega is an established gastroenterology provider, MD, after earning their medical degree at Washington University School Of Medicine in 1997. Dr. currently practices at Mercy Clinic Gastroenterology Llc in Lake Saint Louis, Missouri. Their National Provider Identifier (NPI) is 1073505178, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Dr. Michael Zerega as a lower-volume gastroenterology provider, treating approximately 365 Medicare beneficiaries and delivering 593 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. Michael Zerega received $25 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.