Dr. Mary Ellen Guroy MD
About this NPIWhat this record shows.
NPI 1801971882 is registered to Dr. Mary Ellen Guroy MD, a Infectious Disease practising at 3260 Kerner Blvd in San Rafael, California. Infectious Disease is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Mary Ellen Guroy MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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. Mary Ellen Guroy MD accepts. To confirm in-network status with your specific health plan, contact Dr. Mary Ellen Guroy MD directly at (415) 473-4400.
Frequently asked
Yes. NPI 1801971882 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Infectious Disease is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
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 (415) 473-4400.
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. Mary Ellen Guroy MD is a Type-1 individual NPI.