Dr. Stuart Klein, MD

With 19 years of practice, Dr. Stuart Klein is an established internal medicine provider, MD, after earning their medical degree at State University Of New York Downstate Medical Center in 2004. Dr. currently practices across 3 facilities, including Massachusetts General Physicians Organization Inc in Foxborough, Massachusetts. Their National Provider Identifier (NPI) is 1275744633, 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. Stuart Klein as a lower-volume internal medicine provider, treating approximately 304 Medicare beneficiaries and delivering 1K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.