Dr. Heidi Horstman, MD

In their first decade of practice, Dr. Heidi Horstman represents the newer generation of internal medicine providers, MD, after earning their medical degree at University Of Nebraska College Of Medicine in 2017. Dr. currently practices across 7 facilities, including University Of California Davis Medical Center in Sacramento, California. Their National Provider Identifier (NPI) is 1033641253, 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. Heidi Horstman as a lower-volume internal medicine provider, treating approximately 207 Medicare beneficiaries and delivering 665 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.