TEXAS DIGESTIVE SPECIALISTS
NPI 1821127002
Internal Medicine - Gastroenterology in Harlingen, TX

Q: What is Gastroenterology Consultants Of South Texas, PLLC's specialty?

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

Active since March 05, 2007CLIA Certified · 2 labs

512 VICTORIA LN STE 2, HARLINGEN, TX 78550(956) 365-4400(956) 365-4111 Get Directions Write a Review

NPPES record last updated: September 6, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 6, 2023, Jan 10, 2023, Jan 18, 2022 and 2 more (5 updates tracked since 2020).

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About Texas Digestive Specialists NPPES

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

TEXAS DIGESTIVE SPECIALISTS (NPI 1821127002) is a healthcare organization registered as a gastroenterology in Harlingen, Texas and active in the NPI registry since March 2007. The organization holds 2 active CLIA laboratory certificates, maintains 4 additional practice locations, and lists Nolan E Perez, President, as its authorized official.

NPPES Registry Identity

NPI1821127002

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameGASTROENTEROLOGY CONSULTANTS OF SOUTH TEXAS, PLLC

Location Address512 VICTORIA LN STE 2Harlingen, TX 78550-3227

Mailing Address512 Victoria Ln, Suite 2Harlingen, TX 78550-3226 · (956) 365-4400

Phone(956) 365-4400

Fax(956) 365-4111

Organization SubpartNo

Authorized OfficialNolan E PerezPresident · (956) 365-4400

Enumeration DateMarch 5, 2007

Last NPPES UpdateSeptember 6, 20235 updates tracked since enumeration

NPPES CertifiedSeptember 6, 2023

✔ NPI 1821127002 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ 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.

Also ListedAnesthesiologyTaxonomy 207L00000X

Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X

Also ListedSurgeryTaxonomy 208600000X

Also ListedColon & Rectal SurgeryTaxonomy 208C00000X

512 VICTORIA LN STE 2, Harlingen, TX 78550

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Other Names 1

Doing Business AsTexas Digestive Specialists

Secondary Practice Locations 4

Location 1305 Lorenaly DrBrownsville, TX 78526-4333 · Phone (956) 365-4400 · Fax (956) 365-4111

Location 2533 Pecan BlvdMcAllen, TX 78501-2356 · Phone (956) 365-4400 · Fax (956) 365-4111

Location 3720 N 77 SunshinestripHarlingen, TX 78550-8848 · Phone (956) 365-4400 · Fax (956) 365-4111

Location 44211 N Jackson RdMcAllen, TX 78504-6843 · Phone (956) 365-4400 · Fax (956) 365-4111

Other Identifiers 1

Medicaid186270802TX

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA 2

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 Waiver 45D2238834

Gastroenterology Consultants Of South Texas · Harlingen, TX

Active · expires Oct 5, 2027

CLIA Number45D2238834

Laboratory TypePhysician Office

Certificate Effective DateOctober 6, 2025

Certificate Expiration DateOctober 5, 2027

Laboratory DirectorNolan E. Perez

Laboratory Phone(956) 365-4400

Laboratory LocationGastroenterology Consultants Of South Texas512 Victoria Lane Ste 2, Harlingen, TX 78550

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Certificate of Compliance 45D2119427

Texas Digestive Specialists · Harlingen, TX

Active · expires Dec 4, 2027

CLIA Number45D2119427

Laboratory TypeIndependent

Certificate Effective DateDecember 5, 2025

Certificate Expiration DateDecember 4, 2027

Laboratory DirectorWilliam L. Neumann

Laboratory Phone(956) 365-4400

Laboratory LocationTexas Digestive Specialists720 N 77 Sunshine Strip, Harlingen, TX 78550

CLIA data matches this NPI record on: 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. NADIA YVETTE LOZANO APRN, FNP-C

Nurse Practitioner (Family)