Dr. Joseph James Jennings, MD

Dr. Joseph James Jennings, MD

Dr. Joseph James Jennings, MD

Languages: English
Phone: 202-444-8541
Fax: 877-303-1462

Contact this Provider:

  • Gastroenterology
Conditions I Treat
  • abdominal bloating
  • abdominal distention
  • abdominal pain
  • abnormal bowel movement
  • abnormal liver function blood test
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Procedures I Perform
  • biologic therapy for gastrointestinal diseases
  • bravo ph test
  • capsule endoscopy
  • chromoendoscopy
  • colon polypectomy
  • Show All
About the Provider

Dr. Joseph J. Jennings is a board certified gastroenterologist with a focus on bleeding within the GI tract. He graduated from Georgetown University School of Medicine in 2012 and completed his Internal Medicine training at MedStar Georgetown University Hospital in 2015. He served as the Chief Medical Resident for MedStar Georgetown University Hospital and served as an attending physician in Internal Medicine at the Washington DC VA Medical Center and Virginia Hospital Center as well. He completed his three year fellowship in Gastroenterology at MedStar Georgetown University Hospital and served as Chief Fellow in 2018-2019.

Dr. Jennings strives to create a relationship with his patients that promotes joint decision making and patient empowerment. He also has a strong interest in medical education and training. He currently serves as the associate director for the MedStar Georgetown University Hospital's gastroenterology fellowship program.

Dr. Jennings is board certfied in Internal Medicine since 2015 and Gastroenterology/Hepatology since 2019 (Dr. Jennings Board Certifications ).

  • Fellowship Program: MedStar Georgetown University Hospital (2019)
  • Internship/Residency: MedStar Georgetown University Hospital (2016)
  • Residency Program: MedStar Georgetown University Hospital (2015)
  • Internship Program: MedStar Georgetown University Hospital (2013)
  • Medical School: Georgetown University School of Medicine (2012)

Selected/Recent Publications

Hepatotoxicty of Agents Used in the Management of Inflammatory Bowel Disease: a 2020 Update.

Barnhill MS, Steinberg JM, Jennings JJ, Lewis JH.Curr Gastroenterol Rep. 2020 Jul 15;22(9):47. doi: 10.1007/s11894-020-00781-3.PMID: 32671616 Review.

 Hepatotoxicity induced by immune checkpoint inhibitors: a comprehensive review including current and alternative management strategies.

Jennings JJ, Mandaliya R, Nakshabandi A, Lewis JH.Expert Opin Drug Metab Toxicol. 2019 Mar;15(3):231-244. doi: 10.1080/17425255.2019.1574744. Epub 2019 Feb 5.PMID: 30677306 Review.

 NAFLD-NASH: An Under-Recognized Epidemic.

Jennings J, Faselis C, Yao MD.Curr Vasc Pharmacol. 2018;16(3):209-213. doi: 10.2174/1570161115666170622074007.PMID: 28676024 Review.

 Novel Use for Maloney Dilators in the Management of Gastrostomy Stenosis.

Jennings JJ, Batisda-Coelho R, Lipman TO.ACG Case Rep J. 2019 Apr 5;6(4):e00054. doi: 10.14309/crj.0000000000000054. eCollection 2019 Apr.PMID: 31616736 Free PMC article.

 Outcomes of vedolizumab therapy in patients with immune checkpoint inhibitor-induced colitis: a multi-center study.

Abu-Sbeih H, Ali FS, Alsaadi D, Jennings JJ, Luo W, Gong Z, Richards DM, Charabaty A, Wang Y.J Immunother Cancer. 2018 Dec 5;6(1):142. doi: 10.1186/s40425-018-0461-4.PMID: 30518410 Free PMC article.

Vedolizumab-Induced Remission in 3 Patients With Refractory Microscopic Colitis: A Tertiary Care Center Case Series.

Jennings JJ, Charabaty A.Inflamm Bowel Dis. 2019 Jul 17;25(8):e97. doi: 10.1093/ibd/izz042.PMID: 30889247 No abstract available.

H pylori treatment reduced risk for gastric cancer in patients with a family history of gastric cancer.

Jennings JJ.Ann Intern Med. 2020 Jun 16;172(12):JC66. doi: 10.7326/ACPJ202006160-066.PMID: 32539507

Understanding patient preference for physician attire: a cross-sectional observational study of 10 academic medical centres in the USA.

Petrilli CM, Saint S, Jennings JJ, Caruso A, Kuhn L, Snyder A, Chopra V.BMJ Open. 2018 May 29;8(5):e021239. doi: 10.1136/bmjopen-2017-021239.PMID: 29844101 Free PMC article.


    MedStar Health Providers participate with a wide range of health insurance products. We accept self-pay patients and the insurances plans listed below. This list is not comprehensive, it is updated periodically and is subject to change. If you do not see your health insurance plan or product listed, or if you have any questions regarding MedStar Health’s participation with your health plan, please contact your health plan to verify participation with our providers.

    Since the MedStar Health providers span the District of Columbia, Maryland and Virginia regions, our participation with DC, Maryland and Virginia Medical Assistance programs varies by provider group. Please contact your MedStar Physician’s Office to assist with verifying Medical Assistance participation. If you are enrolled in a Medicaid Managed Care Organization, please contact your Medicaid health plan to verify participation.

Practice Locations
  • 6862 Elm Street
    Mc Lean, VA 22101
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  • 3800 Reservoir Road Northwest
    Washington, DC 20007
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  • 1133 21st Street Northwest
    Washington, DC 20036
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  • 1133 21st Street Northwest
    Washington, DC 20036
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  • 3800 Reservoir Road Northwest
    Washington, DC 20007
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Member of Medical Staff
  • MedStar Georgetown University Hospital
  • Thomas Taylor Award for Excellence in Teaching and Patient Care (2019)
  • 2019 American College of Gastroenterology Young Physician Leadership Scholar 
  • 2018 American College of Gastroenterology GI Jeopardy Winner