Dr. Douglas Chang, M.D.

With 20 years of practice, Dr. Douglas Chang is an established neurology provider, M.D., after earning their medical degree at University Of California, Geffen School Of Medicine in 1976. Dr. currently practices at in Lake Forest, California. Their National Provider Identifier (NPI) is 1295766889, 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. Douglas Chang as a lower-volume neurology provider, treating approximately 90 Medicare beneficiaries and delivering 339 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. Douglas Chang received $18 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.