EMERGENCY MEDICINE SERVICES OF TX, PLLC
NPI 1245938729
Emergency Medicine in San Antonio, TX
About Emergency Medicine Services Of Tx, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMERGENCY MEDICINE SERVICES OF TX, PLLC (NPI 1245938729) is a healthcare organization registered as an emergency medicine in San Antonio, Texas and active in the NPI registry since February 2023. The organization lists Vyvyan Derouen, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Emergency Medicine Services Of Tx, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
1,434Medicare enrollment records show 1,434 clinicians reassign Medicare billing to Emergency Medicine Services Of Tx, PLLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 206 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 13
Nearest to this location (20)
See all 1,434Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Emergency Medicine Services Of Tx, PLLC's NPI number?
The NPI number for Emergency Medicine Services Of Tx, PLLC is 1245938729. It was assigned to this organization in the NPPES registry on February 23, 2023.
Where is Emergency Medicine Services Of Tx, PLLC located?
Emergency Medicine Services Of Tx, PLLC is located at 7700 Floyd Curl Dr, San Antonio, TX 78229. The listed phone number is (210) 575-4000.
What is Emergency Medicine Services Of Tx, PLLC's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Emergency Medicine Services Of Tx, PLLC enrolled in Medicare?
Yes. Emergency Medicine Services Of Tx, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Emergency Medicine Services Of Tx, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1,434 clinicians in 13 Medicare specialties reassign their Medicare billing to Emergency Medicine Services Of Tx, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Emergency Medicine (918), Nurse Practitioner (323) and Family Practice (72). Of these, 3 practice at this address and 206 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Emergency Medicine Services Of Tx, PLLC accept?
Health plans from Blue Cross and Blue Shield of Texas and Molina Healthcare list Emergency Medicine Services Of Tx, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Emergency Medicine Services Of Tx, PLLC was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Emergency Medicine Services Of Tx, Pllc · NPI 1245938729
Emergency Medicine organization in San Antonio, Texas. Organization record, active in the CMS NPPES registry since February 23, 2023.
## Identity
- **NPI:** 1245938729 (Entity type: Organization)
- **Enumerated:** February 23, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Organization subpart:** No
- **Authorized official:** Vyvyan Derouen, PRESIDENT
## Practice location
- **Address:** 7700 FLOYD CURL DR, San Antonio, TX 78229-3902
- **Phone:** (210) 575-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1,434 clinicians in 13 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (918), Nurse Practitioner (323), Family Practice (72); 3 practice at this address and 206 within 10 miles; [full list](https://npiprofile.com/npi/1245938729/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1245938729) · Data from the CMS NPPES public registry.