Tammy Sirich M.D.
About this NPIWhat this record shows.
NPI 1669628871 is registered to Tammy Sirich M.D., a Internal Medicine practising at 751 S Bascom Ave in San Jose, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Tammy Sirich M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2008.
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 Tammy Sirich M.D. accepts. To confirm in-network status with your specific health plan, contact Tammy Sirich M.D. directly at (408) 885-5000.
Frequently asked
Yes. NPI 1669628871 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 (408) 885-5000.
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. Tammy Sirich M.D. is a Type-1 individual NPI.