Dr. Robert Zajac, MD

With 21 years of practice, Dr. Robert Zajac is an established infectious disease provider, MD, after earning their medical degree at Louisiana State University School Of Medicine In New Orleans in 1981. Dr. currently practices at Texas Institute Of Gastroenterology Associates , Pa in San Antonio, Texas. Their National Provider Identifier (NPI) is 1013907963, 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. Robert Zajac as a moderate-volume infectious disease provider, treating approximately 520 Medicare beneficiaries and delivering 61K services in the most recent reporting year. That panel size indicates balanced experience across typical Medicare conditions.

Under the Physician Payments Sunshine Act, CMS reports that Dr. Robert Zajac received $616 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.