NPI Portal NPI Lookup & Verification

Dr. William A Tarran, DPM

Dr. William A Tarran is a Podiatrist provider (Podiatrist) practicing in Pacifica, CA, registered in the NPPES registry with NPI 1952391450 since 2005. The credential DPM stands for Doctor of Podiatric Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1952391450
Entity type Individual (Type 1)
Name Dr. William A Tarran
Credential DPM
Sex Male
Practice address Pacifica, CA, 94044
Phone 6502455745
Fax 6507382455
Enumeration date 2005-10-26
Last updated in NPPES 2025-12-15

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
213E00000X Podiatrist Primary E36230 CA

DPM — Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier Type State Issuer
480026769 Other CA RAILROAD MEDICARE
000E36230 Medicaid CA
Copy-ready billing details
Provider: William Tarran, DPM
NPI: 1952391450
Taxonomy: 213E00000X (Podiatrist)
Address: Pacifica, CA, 94044

Verify this record

Cross-check NPI 1952391450 against the authoritative CMS record: view Dr. William A Tarran on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for William Tarran?
The National Provider Identifier (NPI) for William Tarran is 1952391450, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Tarran practice?
The practice location on file with NPPES is in Pacifica, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-12-15.