Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barry Joseph Mills, M.D.

Q: What is the NPI number for Barry Mills?

The National Provider Identifier (NPI) for Barry Mills is 1902918675, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatry Physician in San Marcos, TX · enumerated 2006.

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

National Provider Identifier

1902918675

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Registry record

Entity type Individual (Type 1)

Name Barry Joseph Mills

Credential M.D.

Sex Male

Practice address 151 Stagecoach Trl Ste 220, San Marcos, TX, 78666

Phone (844) 824-8775

Enumeration date Aug 31, 2006

Last updated in NPPES Jan 9, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 221607 (MA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License J0131 (TX) Primary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License C51171 (CA) Secondary

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
124990608	Medicaid	TX	-
124990609	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

Where does Barry Mills practice?

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

What is the NPI number for Barry Mills?

The National Provider Identifier (NPI) for Barry Mills is 1902918675, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-09.