Peter Merkel, MD, MPH

With 21 years of practice, Peter Merkel is an established rheumatology provider, MD, MPH, after earning their medical degree at Yale University School Of Medicine in 1988. Peter currently practices at Main Line Healthcare in King Of Prussia, Pennsylvania. Their National Provider Identifier (NPI) is 1437136173, 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 Peter Merkel as a lower-volume rheumatology provider, treating approximately 60 Medicare beneficiaries and delivering 95 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 Peter Merkel received $121K in industry payments in 2023. Payments at this scale are elevated relative to most providers and may warrant direct inquiry about potential conflicts of interest during your visit.