NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

David Williams

Physician Assistant in Redlands, CA · enumerated 2019.

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

National Provider Identifier

1336706530

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Registry record

Entity type Individual (Type 1)
Name David Williams
Sex Male
Practice address Redlands, CA, 92373
Enumeration date May 22, 2019
Last updated in NPPES Sep 26, 2023

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

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 57409 (CA) Primary

Other identifiers

Identifier Type State Issuer
DCWILLIAMS19 Medicaid CA -

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 specialty is David Williams?
David Williams is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-26.