Dr. Hilary Marston M.D.
About this NPIWhat this record shows.
NPI 1598992273 is registered to Dr. Hilary Marston M.D., a Internal Medicine practising at Room 7ao5c Bldg 31, 31 Center Drive, National Institutes Of Health in Bethesda, Maryland. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. Hilary Marston M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2009.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Hilary Marston M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Hilary Marston M.D. directly at (301) 451-2435.
Frequently asked
Yes. NPI 1598992273 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (301) 451-2435.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Hilary Marston M.D. is a Type-1 individual NPI.