Skip to main content
Gregory Brennan, MD, Gastroenterology, Mansfield, TX, Medical City Arlington

GregoryThomasBrennanMD

Gastroenterology • Mansfield, TX

Biliary Tract Disease, Inflammatory Bowel Disease

Gastroenterologist

Join to view full profile

Dr. Brennan is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. Brennan's full profile

Already have an account?

Summary

  • Dr. Gregory Brennan is a board certified gastroenterologist in Mansfield TX. He received his medical degree from Tufts University School of Medicine. He is experienced in general gastroenterology, inflammatory bowel disease, advanced endoscopy (complex endoscopic mucosal resection, ablation, luminal stents, & ERCP) and general hepatology.

Education & Training

  • University of California (Irvine)
    University of California (Irvine)Fellowship, Gastroenterology, 2016 - 2019
  • University of Texas Southwestern Medical Center
    University of Texas Southwestern Medical CenterResidency, Internal Medicine, 2013 - 2016
  • Tufts University School of Medicine
    Tufts University School of MedicineClass of 2013
  • University of Massachusetts
    University of MassachusettsBS, Biology, Summa Cum Laude, 2005 - 2009

Certifications & Licensure

  • TX State Medical License
    TX State Medical License 2015 - 2024
  • CA State Medical License
    CA State Medical License 2016 - 2020
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

  • Presidential Poster Award ACG, 2022

Publications & Presentations

PubMed

Abstracts/Posters

  • Ergo-Fest: A Division Wide Quality Improvement Project
    Gregory Brennan, James Y. Han, Vincent Chang, Lauren C. DeDecker, Allen R. Yu, Elise Tran, Daniel Thieu, Amandeep K. Shergill, Nimisha K. Parekh, Jason B. Samarasena, DDW 2018, Washington DC, 6/4/2018

Lectures

  • Clinical Implications of Histologic Abnormalities in Ileocolonic Biopsy of Crohn's Patients in Clinical Remission 
    Digestive Disease Week 2014 Chicago, IL - 5/4/2014

Authored Content

  • Using ChatGPT to Write Pathology Results LettersApril 2023
  • COVID-19 Associated Hemorrhagic Gastritis Treated Successfully with HemosprayApril 2022

Professional Memberships

Hospital Affiliations

Dr. Gregory Brennan, Dr. Gregory Brennan, MD, Dr. G Brennan, Dr. Gregory Thomas Brennan