Dr. Mary Piechowiak, MD

In their first decade of practice, Dr. Mary Piechowiak represents the newer generation of hospitalist providers, MD, after earning their medical degree at George Washington University School Of Medicine in 2018. Dr. currently practices across 10 facilities, including Inova Fairfax Hospital in Falls Church, Virginia. Their National Provider Identifier (NPI) is 1033603824, 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. Mary Piechowiak as a lower-volume hospitalist provider, treating approximately 193 Medicare beneficiaries and delivering 499 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.