Board Certified Gastroenterologist


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Monday – Friday 08:30am – 5:30pm
Saturday – Sunday   CLOSED

WelcomeWe Are Here to HelpYOU

Gastroenterology Consultants of South Texas offers a full array of gastroenterology services to help you maintain a healthy digestive system. (Learn More)

Medical Excellence

Our Board certified gastroenterologist  provide a wide range of procedures for comprehensive management of digestive disorders


Patient Services

Our knowledgeable and friendly staff is  ready to answer your questions &  assist you in anything you need.  Call or visit today.


Latest Technologies

Our team of Board Certified Gastroenterologists are experts in performing advanced diagnostic procedures using the latest technologies.



You have a number of reasons to choose us!

A Caring Staff – We are here for you

Physician Assistant and all staff are dedicated, well trained and compassionate professionals that share the same commitment: “Improving the Health and Quality of People’s Lives.


We Support the Local Community

Dr. Perez has a passion for education and community service and serves on several boards including Trustee for the Harlingen Consolidated Independent School District, UT System Chancellor’s Council Executive Committee, UT-RGV Medical School Advisory Committee, Development Board Member for The University of Texas at Austin,


2 Locations in the RGV

Gastroenterology Consultants of South Texas, PA offers a full array of gastroenterology services to help you maintain a healthy digestive system.


10 Years of Practice

Thank you for allowing us the opportunity to care for your gastroenterology needs and perform your endoscopic procedures. Our desire is to provide you, your family and friends with the finest personalized care!

What Our Patients Are Saying

Great Things…
  • D. Cisneros D. Cisneros Gastro PatientRGV
    Just became a patient and I loved their service. The ladies up front r so nice . And not mention DR. Perez he is so nice and understanding. I am so happy i chose them for my doctors .
  • Tina W. Figueroa Tina W. Figueroa Gastro PatientRGV
    This office is awesome!!!! The Doctors and staff are wonderful and listen to your issues.. Thank you!
2 GCST Locations
15 Qualified Staff
8200 Satisfied Patients
10 Years In Practice