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

Dr. John W Macdonald, MD

Family Medicine Physician in Dayton, TX · enumerated 2006.

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

National Provider Identifier

1245284256

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Registry record

Entity type Individual (Type 1)

Name Dr. John W Macdonald

Credential MD

Sex Male

Practice address Dayton, TX, 77535

Phone (936) 258-2634

Fax (936) 258-7304

Enumeration date May 22, 2006

Last updated in NPPES Jun 9, 2008

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License F7518 (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
00LR46	Other	TX	BLUE CROSS BLUE SHIELD
3166859	Other	TX	HMO BLUE
5259005	Other	TX	AETNA
2814679010	Other	TX	CIGNA

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

How do I verify John Macdonald's NPI record?

Cross-check NPI 1245284256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1245284256 active?

Yes, as of the latest NPPES snapshot, NPI 1245284256 is active (record last updated 2008-06-09).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-09.