USA EMERGENCY CENTERS - SAN MARCOS
NPI 1851180400
Clinic/Center - Emergency Care in San Marcos, TX

Q: What is Usa Emergency Centers - San Marcos's NPI number?

The NPI number for Usa Emergency Centers - San Marcos is 1851180400. It was assigned to this organization in the NPPES registry on May 1, 2025. The provider is doing business as Ally Medical Emergency Room San Marcos.

Q: What is Usa Emergency Centers - San Marcos's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Emergency Care, with taxonomy code 261QE0002X.

Active since May 01, 2025

2810 S I-35 SOUTH FRONTAGE RD, SAN MARCOS, TX 78666(512) 451-0911 Get Directions Write a Review

NPPES record last updated: May 1, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Usa Emergency Centers - San Marcos NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

USA EMERGENCY CENTERS - SAN MARCOS (NPI 1851180400), doing business as Ally Medical Emergency Room San Marcos, is a healthcare organization registered as an emergency care in San Marcos, Texas and active in the NPI registry since May 2025. The organization lists Izaan Roos, Vp Of Operations, as its authorized official.

NPPES Registry Identity

NPI1851180400

Entity TypeOrganization

Primary Taxonomy261QE0002X

Legal Business NameUSA EMERGENCY CENTERS - SAN MARCOS

Location Address2810 S I-35 SOUTH FRONTAGE RDSan Marcos, TX 78666

Mailing Address5525 Burnet Rd Ste AAustin, TX 78756-1646 · (512) 451-0911

Phone(512) 451-0911

Organization SubpartNo

Authorized OfficialIzaan RoosVp Of Operations · (512) 451-0911

Enumeration DateMay 1, 2025

NPPES CertifiedApril 23, 2025

✔ NPI 1851180400 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Emergency CareAmbulatory Health Care Facilities

Taxonomy Code261QE0002X

2810 S I-35 SOUTH FRONTAGE RD, San Marcos, TX 78666

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Other Names 1

Doing Business AsAlly Medical Emergency Room San Marcos

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Usa Emergency Centers - San Marcos's NPI number?

The NPI number for Usa Emergency Centers - San Marcos is 1851180400. It was assigned to this organization in the NPPES registry on May 1, 2025. The provider is doing business as Ally Medical Emergency Room San Marcos.

Where is Usa Emergency Centers - San Marcos located?

Usa Emergency Centers - San Marcos is located at 2810 S I-35 South Frontage Rd, San Marcos, TX 78666. The listed phone number is (512) 451-0911.

What is Usa Emergency Centers - San Marcos's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Emergency Care, with taxonomy code 261QE0002X.

When was this NPI record last updated?

The NPPES record for Usa Emergency Centers - San Marcos was last updated on May 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.