William Sonak, D.C.

With 20 years of practice, William Sonak is an established chiropractic provider, D.C., after earning their medical degree at Other in 1999. William currently practices at Gastroenterology Associates Of Northern Virginia, Llc in Sterling, Virginia. Their National Provider Identifier (NPI) is 1336179183, 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 William Sonak as a lower-volume chiropractic provider, treating approximately 27 Medicare beneficiaries and delivering 503 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.