USA Emergency Centers - San Marcos
NPI 1851180400 · Emergency Care Clinic/Center · San Marcos, TX
USA Emergency Centers - San Marcos is a Emergency Care Clinic/Center organization in San Marcos, TX (NPI 1851180400).
Provider details
- NPI number
- 1851180400
- Entity type
- Organization
- Primary specialty
- Emergency Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Izaan Roos, Vp of Operations(512) 451-0911
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Ally Medical Emergency Room San Marcos
Registry dates
- Enumerated
- 2025-05-01
- Last updated
- 2025-05-01
- Certified
- 2025-04-23
Frequently asked questions
- What is USA Emergency Centers - San Marcos's NPI number?
- USA Emergency Centers - San Marcos's National Provider Identifier (NPI) is 1851180400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is USA Emergency Centers - San Marcos?
- USA Emergency Centers - San Marcos is classified in the NPPES registry as Emergency Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is USA Emergency Centers - San Marcos located?
- USA Emergency Centers - San Marcos's practice location on file with NPPES is 2810 S I-35 South Frontage Rd, San Marcos, TX 78666.
- What is USA Emergency Centers - San Marcos's phone number?
- The practice phone number listed in the NPPES registry for USA Emergency Centers - San Marcos is (512) 451-0911.
- Who is the authorized official for USA Emergency Centers - San Marcos?
- The authorized official listed on USA Emergency Centers - San Marcos's NPPES record is Izaan Roos, Vp of Operations. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is USA Emergency Centers - San Marcos's NPI active?
- Yes — USA Emergency Centers - San Marcos's NPI (1851180400) is active in the NPPES registry as of the last update on 2025-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.