Dr. Mary Louise Lenahan, MD

With 21 years of practice, Dr. Mary Louise Lenahan is an established dermatology provider, MD, after earning their medical degree at Other in 1979. Dr. currently practices across 2 facilities, including Lenahan Dermatology Pllc in East Amherst, New York. Their National Provider Identifier (NPI) is 1144216953, 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. Mary Louise Lenahan as a lower-volume dermatology provider, treating approximately 289 Medicare beneficiaries and delivering 823 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. Mary Louise Lenahan received $2K in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.