Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

South Texas Internal Medicine Associates, P.A.

Legal Medicine in San Antonio, TX · enumerated 2007 · authorized official Brian Winn, Partner.

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

National Provider Identifier

1366626533

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Registry record

Entity type Organization (Type 2)

Legal business name South Texas Internal Medicine Associates, P.A.

Practice address 1303 Mccullough Ave Ste 300, San Antonio, TX, 78212

Phone (210) 225-2551

Fax (210) 225-3896

Enumeration date Dec 24, 2007

Last updated in NPPES Jun 2, 2025

Taxonomy & classification

173000000X Legal Medicine Other Service Providers Primary

Authorized official

Name Brian Winn

Title Partner

Phone (210) 225-2551

Other identifiers

Identifier	Type	State	Issuer
035668501	Medicaid	TX	-
1629067251	Other	-	INDIVIDUAL NPI
035668502	Medicaid	TX	-
1134157522	Other	-	INDIVIDUAL NPI
220118801	Medicaid	TX	-
P00871878	Other	TX	RAIL ROAD MEDICARE
P00871880	Other	TX	RAIL ROAD MEDICARE

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-06-02. Verify at npiregistry.cms.hhs.gov.

Where is South Texas Internal Medicine Associates, P.A. located?

The practice location on file with NPPES is in San Antonio, TX.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-02.