Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dennis Wayne Williamson, D.C.

Chiropractor in Garland, TX · enumerated 2007.

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

National Provider Identifier

1346397080

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Registry record

Entity type Individual (Type 1)

Name Dr. Dennis Wayne Williamson

Credential D.C.

Sex Male

Practice address 4702 Northwest Hwy, Garland, TX, 75043

Phone (972) 270-5333

Fax (972) 270-5335

Enumeration date Jan 4, 2007

Last updated in NPPES Dec 14, 2021

Taxonomy & licenses

111NS0005X Sports Physician Chiropractor Chiropractic Providers · License 10235 (TX) Secondary

111NI0013X Independent Medical Examiner Chiropractor Chiropractic Providers · License 10235 (TX) Secondary

111NX0100X Occupational Health Chiropractor Chiropractic Providers · License 10235 (TX) Secondary

111N00000X Chiropractor Chiropractic Providers · License 10235 (TX) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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 Dennis Williamson?

Dennis Williamson is registered in NPPES with the primary taxonomy of Chiropractor. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-14.