NPIMap

Organization Active NPI

Emergency Medicine Services of TX, PLLC

  • Emergency Medicine Physician
  • San Antonio, TX
National Provider Identifier
1245938729
Registry record updated Nov 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
Legal business name
EMERGENCY MEDICINE SERVICES OF TX, PLLC
Practice address
7700 Floyd Curl Dr
San Antonio, TX 78229-3902
Phone
(210) 575-4000
NPI assigned
Feb 23, 2023
Last updated
Nov 20, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 20, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Vyvyan Derouen
Title
President
Phone
(615) 376-5076

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207P00000X Primary

Addresses

Primary practice location

7700 Floyd Curl Dr
San Antonio, TX 78229-3902

Mailing address

2000 Health Park Dr
Brentwood, TN 37027-4692
Phone (615) 373-7406

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20230517001124 TX Part B Supplier - Clinic/Group Practice 3375909351 Receives reassigned benefits from 1,593 practitioners

National Provider Directory

National Provider Directory

Locations

449 E Alton Gloor Blvd
#247
Brownsville, TX 78526

6902 W Expressway 83
#247
Harlingen, TX 78552

9530 Jones Rd
#247
Jersey Vlg, TX 77065

3154 SE Military Dr
San Antonio, TX 78223

6700 W Interstate 10
San Antonio, TX 78201
Phone (210) 575-8289

Practitioners & affiliated clinicians

Practitioners 1,667

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 1,667

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1677110400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1763596800000",
    "number": "1245938729",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2000 HEALTH PARK DR",
            "city": "BRENTWOOD",
            "state": "TN",
            "postal_code": "370274692",
            "telephone_number": "615-373-7406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7700 FLOYD CURL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782293902",
            "telephone_number": "210-575-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "EMERGENCY MEDICINE SERVICES OF TX, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2023-02-23",
        "last_updated": "2025-11-20",
        "certification_date": "2025-11-20",
        "status": "A",
        "authorized_official_last_name": "DEROUEN",
        "authorized_official_first_name": "VYVYAN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "615-376-5076"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Emergency Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.