Dr. William Hassett, MD

With 20 years of practice, Dr. William Hassett is an established family practice provider, MD, after earning their medical degree at Georgetown University School Of Medicine in 1988. Dr. currently practices across 4 facilities, including in Dover, New Hampshire. Their National Provider Identifier (NPI) is 1386683001, 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. William Hassett as a lower-volume family practice provider, treating approximately 385 Medicare beneficiaries and delivering 1K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.