Dr. Ellen Masse M.D.
About this NPIWhat this record shows.
NPI 1922358308 is registered to Dr. Ellen Masse M.D., a Internal Medicine practising at 20511 Wells Dr in Woodland Hills, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. Ellen Masse M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2012.
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. Ellen Masse M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Ellen Masse M.D. directly at (818) 800-8808.
Frequently asked
Yes. NPI 1922358308 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 (818) 800-8808.
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. Ellen Masse M.D. is a Type-1 individual NPI.