TEXAS EM-1 MEDICAL SERVICES, PA
NPI 1083781561
Emergency Medicine in Mcallen, TX
About Texas Em-1 Medical Services, Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TEXAS EM-1 MEDICAL SERVICES, PA (NPI 1083781561) is a healthcare organization registered as an emergency medicine in Mcallen, Texas and active in the NPI registry since November 2006. The organization lists William C Jernberg, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Texas Em-1 Medical Services, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
60Medicare enrollment records show 60 clinicians reassign Medicare billing to Texas Em-1 Medical Services, PA, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Nearest to this location (20)
See all 60Source: 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 Texas Em-1 Medical Services, PA's NPI number?
The NPI number for Texas Em-1 Medical Services, PA is 1083781561. It was assigned to this organization in the NPPES registry on November 29, 2006.
Where is Texas Em-1 Medical Services, PA located?
Texas Em-1 Medical Services, PA is located at 301 W Expressway 83, Mcallen, TX 78503. The listed phone number is (956) 632-4100.
What is Texas Em-1 Medical Services, PA's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Texas Em-1 Medical Services, PA enrolled in Medicare?
Yes. Texas Em-1 Medical Services, PA is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Texas Em-1 Medical Services, PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 60 clinicians, all in Nurse Practitioner, reassign their Medicare billing to Texas Em-1 Medical Services, PA. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Texas Em-1 Medical Services, PA was last updated on February 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.
# Texas Em-1 Medical Services, Pa · NPI 1083781561
Emergency Medicine organization in Mcallen, Texas. Organization record, active in the CMS NPPES registry since November 29, 2006.
## Identity
- **NPI:** 1083781561 (Entity type: Organization)
- **Enumerated:** November 29, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Organization subpart:** No
- **Authorized official:** William Jernberg, PRESIDENT
## Practice location
- **Address:** 301 W EXPRESSWAY 83, Mcallen, TX 78503-3045
- **Phone:** (956) 632-4100 · **Fax:** (214) 712-2487
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 60 clinicians (Nurse Practitioner) reassign Medicare billing to this organization (form CMS-855R); [full list](https://npiprofile.com/npi/1083781561/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 5, 2008
- **Other identifiers:** Other DA8111 (TX); Medicare PIN 00497V (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1083781561) · Data from the CMS NPPES public registry.