Dr. William O'neill, MD

With 20 years of practice, Dr. William O'neill is an established nephrology provider, MD, after earning their medical degree at Tufts University School Of Medicine in 1979. Dr. currently practices at Choa Hospital Based, Llc in Atlanta, Georgia. Their National Provider Identifier (NPI) is 1215049648, 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 O'neill as a lower-volume nephrology provider, treating approximately 85 Medicare beneficiaries and delivering 189 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.