Marlene Grenon M.D.
About this NPIWhat this record shows.
NPI 1124260534 is registered to Marlene Grenon M.D., a Surgery practising at 400 Parnassus Ave, Suite A 581 in San Francisco, California. Surgery is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Marlene Grenon M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2009.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 860338466AZ· Issued by TAX-ID
Source: NPPES public registry.
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 Marlene Grenon M.D. accepts. To confirm in-network status with your specific health plan, contact Marlene Grenon M.D. directly at (415) 353-2357.
Frequently asked
Yes. NPI 1124260534 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Surgery 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) 353-2357.
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. Marlene Grenon M.D. is a Type-1 individual NPI.