NPI Portal NPI Lookup & Verification

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

Don Dennis Williams, M.D.

Diagnostic Radiology Physician in Provo, UT · enumerated 2010.

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

National Provider Identifier

1942526819

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Registry record

Entity type Individual (Type 1)
Name Don Dennis Williams
Credential M.D.
Sex Male
Practice address Provo, UT, 84604
Phone (801) 812-4624
Fax (801) 812-4699
Enumeration date Apr 15, 2010
Last updated in NPPES Mar 27, 2025

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

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 9349137-1205 (UT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1392 Other UT UNIVERSITY OF UTAH

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 Don Williams practice?
The practice location on file with NPPES is in Provo, UT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Don Williams?
The National Provider Identifier (NPI) for Don Williams is 1942526819, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-27.