Dr. William Knapp, D.O.

With 21 years of practice, Dr. William Knapp is an established internal medicine provider, D.O., after earning their medical degree at At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 1978. Dr. currently practices across 2 facilities, including American Multispecialty Group Inc in Florissant, Missouri. Their National Provider Identifier (NPI) is 1023099140, 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. William Knapp as a lower-volume internal medicine provider, treating approximately 128 Medicare beneficiaries and delivering 2K 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. William Knapp received $539 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.