Dr. John O'brien, D.O.

In their first decade of practice, Dr. John O'brien represents the newer generation of family practice providers, D.O., after earning their medical degree at West Virginia School Of Osteopathic Medicine in 2016. Dr. currently practices at Internal Medical Associates-ebnhc in East Boston, Massachusetts. Their National Provider Identifier (NPI) is 1417480351, 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 O'brien as a lower-volume family practice provider, treating approximately 49 Medicare beneficiaries and delivering 71 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.