Dr. John Maesaka, M.D.

With 20 years of practice, Dr. John Maesaka is an established nephrology provider, M.D., after earning their medical degree at Boston University School Of Medicine in 1961. Dr. currently practices across 3 facilities, including in Mineola, New York. Their National Provider Identifier (NPI) is 1417911686, 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 Maesaka as a lower-volume nephrology provider, treating approximately 117 Medicare beneficiaries and delivering 2K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.