Dr. Oscar Chastain, MD

With 21 years of practice, Dr. Oscar Chastain is an established thoracic surgery provider, MD, after earning their medical degree at Baylor College Of Medicine in 1980. Dr. currently practices at Regional Clinics Of Longview in Longview, Texas. Their National Provider Identifier (NPI) is 1285635409, 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. Oscar Chastain as a lower-volume thoracic surgery provider, treating approximately 152 Medicare beneficiaries and delivering 265 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.