Dr. Grant Williams, MD

With 20 years of practice, Dr. Grant Williams is an established emergency medicine provider, MD, after earning their medical degree at University Of Texas Southwestern Medical School At Dallas in 2003. Dr. currently practices across 4 facilities, including Christus Santa Rosa Hospital-san Marcos in San Marcos, Texas. Their National Provider Identifier (NPI) is 1487697074, 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. Grant Williams as a lower-volume emergency medicine provider, treating approximately 163 Medicare beneficiaries and delivering 187 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.