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TEXAS GASTROENTEROLOGY INSTITUTE, PA
NPI 1194020453
Internal Medicine - Gastroenterology in Mcallen, TX

Active since January 18, 2011CLIA 45D2161348 · Certificate of Compliance
110 E. SAVANNAH AVE BLDG. C, SUITE 101, MCALLEN, TX 78503(956) 686-2626(956) 686-1616 Get Directions Write a Review

NPPES record last updated: August 30, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 30, 2018, Mar 17, 2018 (2 updates tracked since 2018).

About Texas Gastroenterology Institute, Pa NPPES

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

TEXAS GASTROENTEROLOGY INSTITUTE, PA (NPI 1194020453) is a healthcare organization registered as a gastroenterology in Mcallen, Texas and active in the NPI registry since January 2011. The organization holds a CLIA Certificate of Compliance certificate valid through December 16, 2026 and lists Laura Salazar, Administrator, as its authorized official.

NPPES Registry Identity

NPI1194020453
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameTEXAS GASTROENTEROLOGY INSTITUTE, PA
Location Address110 E. SAVANNAH AVE BLDG. C, SUITE 101Mcallen, TX 78503
Mailing Address110 E Savannah Ave Bldg C101Mcallen, TX 78503-1242 · (956) 686-2626 · Fax (956) 686-1616
Phone(956) 686-2626
Fax(956) 686-1616
Organization SubpartNo
Authorized OfficialLaura SalazarAdministrator · (956) 686-2626
Enumeration DateJanuary 18, 2011
Last NPPES UpdateAugust 30, 20182 updates tracked since enumeration
✔ NPI 1194020453 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
110 E. SAVANNAH AVE BLDG. C, Mcallen, TX 78503
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Other Identifiers 1

Other1194020453TX · Npi

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, WellPoint.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)

Texas Gastroenterology Institute, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

12

Medicare enrollment records show 12 clinicians reassign Medicare billing to Texas Gastroenterology Institute, PA, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 8 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Nurse Practitioner7
Gastroenterology4
Pathology1

Clinicians, nearest first (12)

Jessica Chavez, FNP
Nurse Practitioner
NPI 1730557844
110 E SAVANNAH AVE BLDG C STE 101
Mcallen, TX 78503
(956) 686-2626
✔ PECOS✔ Accepts MedicareSame address
Alyssa Ortegon, MSN, APRN, FNP-BC
Nurse Practitioner
NPI 1538841598
110 E SAVANNAH AVE STE 101
Mcallen, TX 78503
(956) 686-2626
✔ PECOSSame address
Giovanna Torres Reyes, MSN RN, AGPCNP-C, AP
Nurse Practitioner
NPI 1295392058
252 LINBERG AVE.
Mcallen, TX 78501
(956) 627-3408
✔ PECOS2.5 mi
Valeska Balderas, MD
Gastroenterology
NPI 1588866370
801 E NOLANA AVE SUITE 4
Mcallen, TX 78504
(956) 686-2626
✔ PECOS✔ Accepts Medicare3.8 mi
Earl Rangel, MSN NP-C
Nurse Practitioner
NPI 1093727851
4949 S JACKSON RD SUITE F
Edinburg, TX 78539
(956) 994-3771
✔ PECOS5.4 mi
Mayra Derupe, FNP
Nurse Practitioner
NPI 1942783410
910 S BRYAN RD STE 209
Mission, TX 78572
(956) 424-1511
✔ PECOS✔ Accepts Medicare5.7 mi
Silvia Sy, M.D.
Gastroenterology
NPI 1245284801
910 S BRYAN RD STE 209
Mission, TX 78572
(956) 424-1511
✔ PECOS✔ Accepts Medicare5.7 mi
Athira Jose
Nurse Practitioner
NPI 1417802919
3108 S JACKSON RD
Edinburg, TX 78539
(956) 789-2373
✔ PECOS6.7 mi
Amanda Arredondo, APRN-CNP
Nurse Practitioner
NPI 1568268761
906 S BRIDGE AVE
Weslaco, TX 78596
(956) 447-8600
✔ PECOS✔ Accepts Medicare15 mi
Lidia Showing, MD
Pathology
NPI 1396778320
2101 PEASE ST
Harlingen, TX 78550
(956) 423-3335
✔ PECOS✔ Accepts Medicare34 mi
Khizar Ahsan, M.D.
Gastroenterology
NPI 1750399077
5342 E HWY 83, C1
Rio Grande City, TX 78582
(956) 488-9900
✔ PECOS✔ Accepts Medicare36 mi
Jose Rodriguez, MD
Gastroenterology
NPI 1912929456
5151 N 9TH AVE
Pensacola, FL 32504
(904) 450-6063
✔ PECOS✔ Accepts Medicare733 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 45D2161348

Texas Gastroenterology Institute · Mcallen, TX
Active · expires Dec 16, 2026
CLIA Number45D2161348
Laboratory TypePhysician Office
Certificate Effective DateDecember 17, 2024
Certificate Expiration DateDecember 16, 2026
Laboratory DirectorAmy Collinsworth
Laboratory Phone(956) 686-2626
Laboratory LocationTexas Gastroenterology Institute110 E Savannah Ave, Building C, Suite 203, Mcallen, TX 78503
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Gastroenterology Institute, PA's NPI number?

The NPI number for Texas Gastroenterology Institute, PA is 1194020453. It was assigned to this organization in the NPPES registry on January 18, 2011.

Where is Texas Gastroenterology Institute, PA located?

Texas Gastroenterology Institute, PA is located at 110 E. Savannah Ave Bldg. C Suite 101, Mcallen, TX 78503. The listed phone number is (956) 686-2626.

What is Texas Gastroenterology Institute, PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Texas Gastroenterology Institute, PA enrolled in Medicare?

Yes. Texas Gastroenterology Institute, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Texas Gastroenterology Institute, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 3 Medicare specialties reassign their Medicare billing to Texas Gastroenterology Institute, 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. The largest specialties are Nurse Practitioner (7), Gastroenterology (4) and Pathology (1). Of these, 2 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Texas Gastroenterology Institute, PA hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 45D2161348) is associated with this NPI, valid through December 16, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Texas Gastroenterology Institute, PA accept?

Health plans from Blue Cross and Blue Shield of Texas and WellPoint list Texas Gastroenterology Institute, 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 Texas Gastroenterology Institute, PA was last updated on August 30, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.