GUADALUPE MARTINEZ DIAZ
NPI 1619736444
Registered Nurse in El Paso, TX
About Guadalupe Martinez Diaz NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GUADALUPE MARTINEZ DIAZ (NPI 1619736444) is an individual registered nurse in El Paso, Texas, licensed in New Mexico (784013) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Teresa, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Guadalupe Martinez Diaz is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
10Medicare enrollment records show Guadalupe Martinez Diaz reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
El Paso, TX 79902
- Reassigned Medicare billing, Texas enrollment
- 23 clinicians in this Medicare group
Laredo, TX 78041
- Reassigned Medicare billing, Texas enrollment
- 23 clinicians in this Medicare group
Dallas, TX 76021
- Reassigned Medicare billing, Texas enrollment
- 26 clinicians in this Medicare group
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- 26 clinicians in this Medicare group
Corpus Christi, TX 78413
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Edinburg, TX 78539
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Sugar Land, TX 77479
- Reassigned Medicare billing, Texas enrollment
- 26 clinicians in this Medicare group
Conroe, TX 77384
- Reassigned Medicare billing, Texas enrollment
- 26 clinicians in this Medicare group
Pasadena, TX 77504
- Reassigned Medicare billing, Texas enrollment
- 28 clinicians in this Medicare group
Beaumont, TX 77701
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Guadalupe Martinez Diaz's NPI number?
The NPI number for Guadalupe Martinez Diaz is 1619736444. It was assigned to this individual provider in the NPPES registry on March 14, 2024.
Where is Guadalupe Martinez Diaz located?
Guadalupe Martinez Diaz practices at 1810 Murchison Dr Ste 104, El Paso, TX 79902. The listed phone number is (281) 888-8999.
What is Guadalupe Martinez Diaz's specialty?
The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.
Is Guadalupe Martinez Diaz enrolled in Medicare?
Yes. Guadalupe Martinez Diaz is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Guadalupe Martinez Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Guadalupe Martinez Diaz reassigns Medicare benefits to 10 organizations: Nirp South Central Texas PLLC (El Paso, TX), Nirp Laredo PLLC (Laredo, TX), Nirp Dallas-Fort Worth PLLC (Dallas, TX), Nirp Victoria PLLC (Victoria, TX), Nirp Corpus Christi PLLC (Corpus Christi, TX) and 5 more organizations, listed in the Medicare section above. Each 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 Guadalupe Martinez Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Guadalupe Martinez Diaz was last updated on June 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Guadalupe Martinez Diaz · NPI 1619736444
Registered Nurse provider in El Paso, Texas. Individual provider, active in the CMS NPPES registry since March 14, 2024.
## Identity
- **NPI:** 1619736444 (Entity type: Individual)
- **Enumerated:** March 14, 2024
- **Primary specialty:** Registered Nurse · taxonomy 163W00000X
- **State license:** 784013 (New Mexico)
- **Sole proprietor:** No
## Practice location
- **Address:** 1810 MURCHISON DR STE 104, El Paso, TX 79902-2906
- **Phone:** (281) 888-8999 · **Fax:** (281) 305-4054
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Nirp South Central Texas PLLC (NPI 1447715735, El Paso, TX); Nirp Laredo PLLC (NPI 1063977346, Laredo, TX); Nirp Dallas-Fort Worth PLLC (NPI 1992260277, Dallas, TX); Nirp Victoria PLLC (NPI 1407354699, Victoria, TX); Nirp Corpus Christi PLLC (NPI 1619475761, Corpus Christi, TX); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1619736444) · Data from the CMS NPPES public registry.