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NAIARA M ALVAREZ MD PA
NPI 1942702089
Internal Medicine - Rheumatology in Edinburg, TX

Active since March 05, 2018
5223 S MCCOLL RD, EDINBURG, TX 78539(956) 627-0803(956) 803-9500 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 4, 2025, Mar 5, 2018 (2 updates tracked since 2018).

About Naiara M Alvarez Md Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NAIARA M ALVAREZ MD PA (NPI 1942702089), doing business as Integrative Rheumatology Of South Texas, is a healthcare organization registered as a rheumatology in Edinburg, Texas and active in the NPI registry since March 2018. The organization maintains a secondary practice location in Harlingen and lists Naiara Alvarez, Md, as its authorized official.

NPPES Registry Identity

NPI1942702089
Entity TypeOrganization
Primary Taxonomy207RR0500X
Legal Business NameNAIARA M ALVAREZ MD PA
Location Address5223 S MCCOLL RDEdinburg, TX 78539-7861
Mailing Address216 Baylor AveMcallen, TX 78504-1997
Phone(956) 627-0803
Fax(956) 803-9500
Organization SubpartNo
Authorized OfficialNaiara AlvarezMd · (956) 328-0494
Enumeration DateMarch 5, 2018
Last NPPES UpdateJune 4, 20252 updates tracked since enumeration
NPPES CertifiedJune 4, 2025
✔ NPI 1942702089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in TX · Q5331
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
5223 S MCCOLL RD, Edinburg, TX 78539
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Other Names 1

Doing Business AsIntegrative Rheumatology Of South Texas

Secondary Practice Location 1

Location 1512 Victoria Ln Ste 7Harlingen, TX 78550 · Phone (956) 422-3122

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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)

Naiara M Alvarez Md Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Naiara M Alvarez MD PA, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Reyna Chavarri, MPAS, PA-C
Rheumatology
NPI 1457005456
5223 S MCCOLL RD
Edinburg, TX 78539
(956) 627-0803
✔ PECOS✔ Accepts MedicareSame address
Belinda Garza, NP
Nurse Practitioner
NPI 1659617827
307 N SALINAS BLVD SUITE B
Donna, TX 78537
(956) 461-2150
✔ PECOS✔ Accepts Medicare12 mi
Naiara Alvarez, MD
Rheumatology
NPI 1578873857
512 VICTORIA LN STE 7
Harlingen, TX 78550
(956) 423-1112
✔ PECOS✔ Accepts Medicare34 mi

Source: 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 Naiara M Alvarez MD PA's NPI number?

The NPI number for Naiara M Alvarez MD PA is 1942702089. It was assigned to this organization in the NPPES registry on March 5, 2018. The provider is doing business as Integrative Rheumatology of South Texas.

Where is Naiara M Alvarez MD PA located?

Naiara M Alvarez MD PA is located at 5223 S Mccoll Rd, Edinburg, TX 78539. The listed phone number is (956) 627-0803.

What is Naiara M Alvarez MD PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Naiara M Alvarez MD PA enrolled in Medicare?

Yes. Naiara M Alvarez MD PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Naiara M Alvarez MD PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Naiara M Alvarez MD PA, in Nurse Practitioner and Rheumatology. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Naiara M Alvarez MD PA accept?

Health plans from Blue Cross and Blue Shield of Texas list Naiara M Alvarez MD PA 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 Naiara M Alvarez MD PA was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.