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

Dr. William L Harrison, O.D.

Optometrist in Brigham City, UT · enumerated 2006 · practices at The Cozy Couch Therapy.

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

National Provider Identifier

1124068788

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Registry record

Entity type Individual (Type 1)

Name Dr. William L Harrison

Credential O.D.

Sex Male

Practice address Brigham City, UT, 84302

Phone (435) 723-2144

Fax (435) 723-4760

Enumeration date Jun 8, 2006

Last updated in NPPES Apr 24, 2008

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 112018-9934 (UT) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
870489203HA1	Other	UT	EDUCATOR'S MUTUAL
16700	Other	UT	PEHP
2116865206 2	Other	UT	BENESYS
37044	Other	UT	DESERET MUTUAL
1424777	Other	UT	MAILHANDLERS
320341	Other	ID	BLUE SHIELD OF IDAHO
QM0000030898	Other	UT	ALTIUS
107009215103	Other	UT	IHC
557942	Other	UT	FOCUS
73288	Other	UT	CCN

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.

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Frequently asked questions

What specialty is William Harrison?

William Harrison is registered in NPPES with the primary taxonomy of Optometrist. 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.

Other providers at this practice address

Browse all →

Brady Benson Dentist · Brigham City, UT NPI 1669464962 William Andersen Orthodontics and Dentofacial Orthopedics Dentistry · Brigham City, UT NPI 1598773814 The Cozy Couch Therapy Mental Health Clinic/Center (Including Community Mental Health Center) · Brigham City, UT NPI 1790519346

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-24.