Dr. John Schallenkamp, MD

With 20 years of practice, Dr. John Schallenkamp is an established radiation oncology provider, MD, after earning their medical degree at Medical College Of Wisconsin in 2000. Dr. currently practices at Billings Clinic in Billings, Montana. Their National Provider Identifier (NPI) is 1265455018, 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 Schallenkamp as a lower-volume radiation oncology provider, treating approximately 265 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. John Schallenkamp received $26 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.