Dr. William Paley, D.O.

With 20 years of practice, Dr. William Paley is an established family practice provider, D.O., after earning their medical degree at Midwestern University, Chicago College Of Osteopathic Med in 1981. Dr. currently practices at Southern California Permanente Medical Group in Ontario, California. Their National Provider Identifier (NPI) is 1124105754, 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 Paley as a lower-volume family practice provider, treating approximately 35 Medicare beneficiaries and delivering 167 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. William Paley received $158 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.