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

Guy O Danielson III, M.D.

Neurological Surgery Physician in Tyler, TX · enumerated 2006.

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

National Provider Identifier

1801905674

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Guy O Danielson III

Credential M.D.

Sex Male

Practice address Tyler, TX, 75701

Phone (903) 595-8077

Fax (903) 363-1541

Enumeration date Aug 29, 2006

Last updated in NPPES Feb 2, 2016

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

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License E7042 (TX) 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
137457111	Medicaid	TX	-
8K6370	Other	-	BLUE CROSS BLUE SHIELD

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 Guy Danielson?

Guy Danielson is registered in NPPES with the primary taxonomy of Neurological Surgery Physician. 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 →

Texas Spine and Joint Hospital, LLC General Acute Care Hospital · Tyler, TX NPI 1942292255 James Mckinley Sports Medicine (Family Medicine) Physician · Tyler, TX NPI 1902896863 Laboratory Corporation of America Clinical Medical Laboratory · Tyler, TX NPI 1184609067 Sheri Stillwell Clinical Social Worker · Tyler, TX NPI 1154379832 David Huston Physician Assistant · Tyler, TX NPI 1215967823 Laura Roberts Critical Care Medicine Nurse Practitioner · Tyler, TX NPI 1942228937 Guy O Danielson III, M.D., P.A. Neurological Surgery Physician · Tyler, TX NPI 1588773345 Aaron K Calodney M.D., P.A. Pain Medicine (Anesthesiology) Physician · Tyler, TX NPI 1831291723

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-02.