Mark Nachman MD
About this NPIWhat this record shows.
NPI 1104803683 is registered to Mark Nachman MD, a Internal Medicine practising at 1301 20th St, Ste 290 in Santa Monica, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Mark Nachman MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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 Mark Nachman MD accepts. To confirm in-network status with your specific health plan, contact Mark Nachman MD directly at (310) 315-0111.
Frequently asked
Yes. NPI 1104803683 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 (310) 315-0111.
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. Mark Nachman MD is a Type-1 individual NPI.