Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William George Brelsford, MD, FACP, FACR

Rheumatology Physician in Amarillo, TX · enumerated 2005 · practices at Allergy Arts LLP.

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

National Provider Identifier

1770586703

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Registry record

Entity type Individual (Type 1)

Name William George Brelsford

Credential MD, FACP, FACR

Sex Male

Practice address 6842 Plum Creek Dr, Amarillo, TX, 79124

Phone (806) 353-7000

Enumeration date May 23, 2005

Last updated in NPPES Dec 20, 2024

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License G1283 (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
8A7490	Other	TX	BCBS
042884901	Medicaid	TX	-

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

Is NPI 1770586703 active?

Yes, as of the latest NPPES snapshot, NPI 1770586703 is active (record last updated 2024-12-20).

How do I verify William Brelsford's NPI record?

Cross-check NPI 1770586703 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-20.