Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Frederick Conrad Finzen, DDS

Prosthodontics in San Francisco, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235226705

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Registry record

Entity type Individual (Type 1)

Name Dr. Frederick Conrad Finzen

Credential DDS

Sex Male

Practice address 707 Parnassus Ave, D4000, San Francisco, CA, 94143

Phone (415) 502-8503

Fax (415) 476-0858

Enumeration date Oct 6, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223P0700X Prosthodontics Dental Providers · License 27517 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Frederick Finzen practice?

The practice location on file with NPPES is in San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Frederick Finzen?

The National Provider Identifier (NPI) for Frederick Finzen is 1235226705, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.