Dr. John Charlson, M.D.

With 20 years of practice, Dr. John Charlson is an established medical oncology provider, M.D., after earning their medical degree at University Of Iowa, Rj & L Carver College Of Medicine in 1999. Dr. currently practices across 4 facilities, including Froedtert Memorial Lutheran Hospital in Milwaukee, Wisconsin. Their National Provider Identifier (NPI) is 1386668192, 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. John Charlson as a lower-volume medical oncology provider, treating approximately 139 Medicare beneficiaries and delivering 505 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. John Charlson received $10K in industry payments in 2023. Payments at this scale are in line with specialist-level consulting and speaker-program participation.