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Texas Digestive Specialists

  • Multi-specialty group
  • Harlingen, TX
  • Core specialty: Primary care
NPI1821127002PAC ID3274624937Dmand IDNG-MGR-037413
Total HCPs
55
Physicians (MD/DO)
28
Nurses and PAs
27
Executives
16
Practice locations
5
Main site
512 Victoria Ln, Harlingen, TX 78550-8848
Main phone
(956) 365-4400
Specialty areas
6, led by primary care
Website and social

Parent organization

Texas Digestive Specialists

Independent practice · Harlingen, Texas

Find the right contacts among 16 executives and 55 HCPs

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Texas Digestive Specialists is a multi-specialty medical group with 5 practice locations in Texas

Texas Digestive Specialists (Gastroenterology Consultants Of South Texas, PLLC) is based in Harlingen, Texas, part of Texas Digestive Specialists.

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); Dmand AI Org Hierarchy Data; and Dmand AI Affiliation Data

Carlette Villarreal is director of clinical research of Texas Digestive Specialists

Dmand AI tracks 16 executives and staff leaders at Texas Digestive Specialists. Waterfall enrichment finds their professional emails, personal emails and mobile numbers.

Carlette Villarreal

Director of Clinical Research

PhoneEmail
Zach Nieto

Accounting Controller

PhoneEmail

Executives by department

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Source: Dmand AI Executive Data

Texas Digestive Specialists' NPI is 1821127002 and its PAC ID is 3274624937

Identifiers
Primary NPI (Type 2)
1821127002NPI Registry (opens in a new tab)
Medicare PAC ID
3274624937
Dmand ID
NG-MGR-037413
Medicare enrollment
Enrolled (PAC ID on file)
Contact
Main site address
512 Victoria Ln, Harlingen, TX 78550-8848
Main phone
(956) 365-4400
Website
texasdigestive.com/luis-villegas-pac-gastroenterologist-mcallen-brownsville-harlingen-texas (opens in a new tab)
Executive emails and mobiles
Get contacts
Classification
Group type
Multi-specialty
Core specialty
Primary care
Specialty areas
6
Site structure
Multi-site
Ownership model
Clinician owned
Leadership
Physician-led
Medicare Part B payments
$2.2M
Legal name
Gastroenterology Consultants Of South Texas, PLLC

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); Dmand AI Org Hierarchy Data; Dmand AI Organization Profile Data; and Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Texas Digestive Specialists is part of Texas Digestive Specialists

Dmand AI places Texas Digestive Specialists under Texas Digestive Specialists, an independent practice.

  • Texas Digestive SpecialistsIndependent practice
  • Texas Digestive SpecialistsMulti-specialty medical group · Harlingen, TX

Source: Dmand AI Org Hierarchy Data

Org hierarchy

Map Texas Digestive Specialists' entire network

See how Texas Digestive Specialists connects to Texas Digestive Specialists: its parent organizations, sister groups and every site of care in between, with the HCPs and leaders at each one.

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Texas Digestive Specialists has 28 physicians among 55 HCPs

Physicians (MD, DO)28
Nurses17
Physician assistants10

Texas Digestive Specialists physicians by specialty

  1. Gastroenterology14
  2. Anatomic pathology and clinical pathology5
  3. Colon and rectal surgery3
  4. Surgery3
  5. Pediatric gastroenterology2

Share of the group's 28 physicians.

Texas Digestive Specialists physicians

Dr. Nolan E. Perez, MDGastroenterologist, Harlingen, TXDr. Brian D. Towell, MDPathologist, San Antonio, TXDr. Alberto A. Pena, MDColorectal surgeon, Mcallen, TXDr. Michael Joel Martinez, MDGeneral surgeon, Mcallen, TXDr. Mihaela Ringheanu, MDPediatric gastroenterology physician, Harlingen, TXDr. Henneth Antonieta Corado Montenegro, MDInternist, Mcallen, TX
View all 55 HCPs

Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data

Texas Digestive Specialists has 5 practice locations in Texas

Texas Digestive Specialists practice locations

Texas Digestive SpecialistsPractice site · Harlingen, TXTexas Digestive SpecialistsPractice site · Brownsville, TX
+3 more practice locationsAvailable with a free account

Texas Digestive Specialists HCPs practice at 6 hospitals

DHR Health25 HCPs from this group · Acute care hospital, Edinburg, TXValley Regional Medical Center21 HCPs from this group · Acute care hospital, Brownsville, TX
+4 more hospitalsAvailable with a free account

Sources: Doctors and Clinicians National Downloadable File (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data

Full footprint

See every site where Texas Digestive Specialists HCPs practice

Open all 5 practice locations and 6 hospitals with facility phones, patient visits and the HCPs at each site.

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Texas Digestive Specialists covers 6 specialty areas, led by primary care

Primary care is Texas Digestive Specialists' core specialty, and its HCPs practice 6 subspecialties in all.

  • Primary careCore
  • Anesthesia and pain
  • Gastroenterology
  • Pathology and laboratory
  • Pediatrics
  • Surgery

Sources: Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data

Dmand AI tracks the EHR at Texas Digestive Specialists

Vendor and product names for each practice location are available with a free account.

EHR systems at Texas Digestive Specialists
SiteEHR vendorProduct
Main siteAvailable with a free accountAvailable with a free account
4 other practice locationsAvailable with a free accountAvailable with a free account

Source: Dmand AI Technology Install Data

Primary care groups in Texas similar in size to Texas Digestive Specialists

These primary care groups have the closest number of HCPs to Texas Digestive Specialists.

Similar medical groups by number of HCPs
Medical groupHCPs
Emergency Staffing SolutionsDallas, TX55
Emergency Staffing SolutionsDallas, TX55
Hunt Regional Urgent CareGreenville, TX56
Transitional Care PhysiciansSan Antonio, TX54
East Houston Medical CenterHouston, TX57
See all 4,000 primary care groups in Texas

Sources: Dmand AI Affiliation Data; and Dmand AI Peer Benchmarks

Sources for Texas Digestive Specialists data

Sources for the data on this page
Data on this pageSource
NPI, PAC ID and addressNPPES NPI Registry (CMS) (opens in a new tab)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Dmand ID, phone, website, LinkedIn and group profileDmand AI Org Hierarchy DataDmand AI Organization Profile Data
Medicare Part B paymentsMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Parent organizations and sister groupsDmand AI Org Hierarchy Data
HCPs and physician specialtiesNPPES NPI Registry (CMS) (opens in a new tab)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation Data
Specialty areasDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation Data
Practice locations and hospitalsDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data
Executives and departmentsDmand AI Executive Data
Similar groupsDmand AI Affiliation DataDmand AI Peer Benchmarks
EHR vendorsDmand AI Technology Install Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Texas Digestive Specialists

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Texas Digestive Specialists' NPI number?

Texas Digestive Specialists' primary NPI (Type 2) is 1821127002.

What is Texas Digestive Specialists' PAC ID?

Texas Digestive Specialists' Medicare PAC ID is 3274624937, which means the group is enrolled in Medicare.

How many locations does Texas Digestive Specialists have?

Dmand AI links Texas Digestive Specialists to 5 practice locations in Texas. Its main site is at 512 Victoria Ln, Harlingen, TX 78550-8848.

What is Texas Digestive Specialists' phone number?

Texas Digestive Specialists' main phone number is (956) 365-4400.

Who owns Texas Digestive Specialists?

Dmand AI places Texas Digestive Specialists under Texas Digestive Specialists, an independent practice.

How many physicians does Texas Digestive Specialists have?

Dmand AI links 28 physicians and 55 HCPs in all to Texas Digestive Specialists.

What specialties does Texas Digestive Specialists cover?

Texas Digestive Specialists covers 6 specialty areas, led by primary care. The largest physician specialties are gastroenterology (14), anatomic pathology and clinical pathology (5) and colon and rectal surgery (3).

What hospitals do Texas Digestive Specialists HCPs practice at?

Texas Digestive Specialists HCPs practice at 6 hospitals with 5 or more of the group's HCPs, led by DHR Health and Valley Regional Medical Center.

Who leads Texas Digestive Specialists?

Leaders at Texas Digestive Specialists include Carlette Villarreal (Director of Clinical Research) and Zach Nieto (Accounting Controller).

How much does Texas Digestive Specialists receive from Medicare?

CMS data shows $2.2 million in Medicare Part B payments to Texas Digestive Specialists.

Selling to primary care groups?

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