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John McCarthy, MD, Gastroenterology, Bethesda, MD

John Gettys McCarthy MD

Esophagus Disease, Gastrointestinal Functional & Motility Disorders


Program Director, NCC GI Fellowship Clinical Associate Professor, USUHS

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  • Walter Reed National Military Medical Center8901 Rockville PikeBethesda, MD 20814

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Summary

  • Dr. John McCarthy is a gastroenterologist based in Bethesda, MD, specializing in esophagus disease and gastrointestinal functional and motility disorders. He completed his fellowship in gastroenterology at the National Capital Consortium and his internal medicine residency and chief residency at Tripler Army Medical Center, following his graduation from Georgetown University School of Medicine in 2012. Since 2019, he has been serving as a gastroenterologist at Walter Reed National Military Medical Center. Dr. McCarthy has contributed to various publications, including articles in Cureus and Military Medicine, focusing on gastrointestinal conditions and diagnostic approaches.

Education & Training

  • National Capital Consortium
    National Capital ConsortiumFellowship, Gastroenterology, 2016 - 2019
  • Tripler Army Medical Center
    Tripler Army Medical CenterChief Residency, Internal Medicine, 2015 - 2016
  • Tripler Army Medical Center
    Tripler Army Medical CenterResidency, Internal Medicine, 2012 - 2015
  • Georgetown University School of Medicine
    Georgetown University School of MedicineClass of 2012

Certifications & Licensure

  • HI State Medical License
    HI State Medical License 2014 - 2026
  • Internal Medicine
    American Board of Internal Medicine Internal Medicine
  • Gastroenterology
    American Board of Internal Medicine Gastroenterology

Publications & Presentations

PubMed

Lectures

  • Updates in Gastroenterology 2025 
    American College of Physicians 2025 - New Orleans - 4/3/2025
  • Upper GI Potpourri 
    ACP, San Diego CA - 4/27/2023

Committees

  • Member, Practice Parameters Committee, ACG

Professional Memberships

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