Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Don W. Worthington, PH.D.
Audiologist in Salt Lake City, UT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679504005
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Registry record
Entity type Individual (Type 1)
Name Dr. Don W. Worthington
Credential PH.D.
Sex Male
Practice address 230 South 500 East, Suite 150, Salt Lake City, UT, 84102
Phone (801) 595-1700
Fax (801) 539-8900
Enumeration date Jul 5, 2006
Last updated in NPPES Aug 29, 2008
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 271474-4101 (UT) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| D0343 | Medicaid | UT | - |
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.
Frequently asked questions
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.
What specialty is Don Worthington?
Don Worthington is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-29.