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

Dr. John William Hays, MD

Q: What is the NPI number for John Hays?

The National Provider Identifier (NPI) for John Hays is 1083666549, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Brownwood, TX · enumerated 2006.

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

National Provider Identifier

1083666549

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Registry record

Entity type Individual (Type 1)

Name Dr. John William Hays

Credential MD

Sex Male

Practice address Brownwood, TX, 76801

Phone (325) 784-5709

Fax (325) 646-7768

Enumeration date May 16, 2006

Last updated in NPPES Apr 8, 2009

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

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License L2930 (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
148706100	Other	TX	FIRSTCARE
90079	Other	TX	SCOTT & WHITE HEALTH PLAN
P00295742	Other	TX	MEDICARE RAILROAD
8U7160	Other	TX	BLUE CROSS BLUE SHIELD
167350103	Medicaid	TX	-
742736914002	Other	TX	HUMAN/MILITARY-TRICARE

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

Where does John Hays practice?

The practice location on file with NPPES is in Brownwood, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Hays?

The National Provider Identifier (NPI) for John Hays is 1083666549, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-08.