Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William B. Taylor, D.D.S.

Dentist in San Francisco, CA · enumerated 2007.

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

National Provider Identifier

1578697942

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Registry record

Entity type Individual (Type 1)

Name Dr. William B. Taylor

Credential D.D.S.

Sex Male

Practice address 1050 Wisconsin St, Potrero Hall Health Center, San Francisco, CA, 94107

Phone (415) 920-1230

Enumeration date Mar 15, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 33D629111 (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

What is the NPI number for William Taylor?

The National Provider Identifier (NPI) for William Taylor is 1578697942, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Taylor practice?

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

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.