Joseph James Jennings, MD| Gastroenterology | MedStar Health
About me
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 certified in Internal Medicine since 2015 and Gastroenterology/Hepatology since 2019 (Dr. Jennings Board Certifications). He has been recognized by multiple organizations as a "Top Gastroenterologist and Hepatologist" both for the DC region as well as on the national level.
Dr. Jennings is board certfied in Internal Medicine since 2015 and Gastroenterology/Hepatology since 2019 (Dr. Jennings Board Certifications). He has been recognized by multiple organizations as a "Top Gastroenterologist and Hepatologist" both for the DC region as well as on the national level.
Dr. Jennings sees patients at three locations currently:
MedStar Georgetown University Hospital for in person or virtual clinic visits as well as endoscopic procedures (Monday, Tuesday, Wednesday mornings, and Friday afternoons)
MedStar Lafayette Centre for clinic visits as well as endoscopic procedures (Thursday and Friday mornings)
MedStar McLean for in person clinic visits as well as endoscopic procedures (Wednesday afternoons)
Clinical areas of focus
- Colonoscopy With Biopsy
- Enteroscopy With Bleeding Control
- Sigmoidoscopy With Biopsy
Conditions and procedures
Conditions I treat
- Arteriovenous Malformation (AVM)
- Celiac Disease
- Colitis
- Colon Cancer
- Colon Polyps
- Colorectal Malignancy
- Crohn's Disease
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Duodenal Ulcer
- Dysphagia
- Esophageal Cancer
- Gastric Cancer
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- Hematemesis
- Inflammatory Bowel Disease
- Iron Deficiency Testing
- Proctitis
- Rectal Cancer
- Small Intestine Cancer
- Stomach Cancer
- Ulcerative Colitis
Procedures I perform
- Capsule Endoscopy
- Colonoscopy
- Colonoscopy Through Stoma
- Colonoscopy Through Stoma With Biopsy
- Colonoscopy With Biopsy
- Colonoscopy With Injection
- EGD With Biopsy
- EGD With Mucosal Resection
- Endoscopic Evaluation Of Intestinal Pouch
- Endoscopic Mucosal Resection
- Endoscopic Stomach Feeding Device Insertion
- Endoscopy
- Enteroscopy
- Enteroscopy With Biopsy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Esophagogastroduodenoscopy With Tumor Ablation
- Flexible Colonoscopy With Biopsy
- Ileoscopy With Biopsy
- Inflammatory Bowel Disease
- Lower Gi Endoscopy
- Sigmoidoscopy With Biopsy
- Upper Esophagus Dilation, Endoscopic
- Upper Gi Endoscopy
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- IH-Open POS II
- MultiPlan, Inc
- United Healthcare Select Plus (POS)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Medicare Advantage HMO & PPO Plans
- Health Services for Children with Special Needs
- Cigna Achieve Medicare (HMO C-SNP)
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Coventry Health Care of Virginia
- UnitedHealthcare Individual Exchange Plans
- UnitedHealthcare and AARP Medicare Complete Plans
- United Medicare Private Fee-for-Service (PFFS) plans
- IH-Open EPO Plus
- Kaiser Permanente Medicare Plus
- TRICARE for Life East
- IH-Open POS Plus
- CareFirst (NCA) Indemnity
- Humana Medicare Advantage - HMO Open Access
- HighMark
- United Student Resources
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Medicare Advantage - Advantra Value (PPO)
- CIGNA PPO
- Johns Hopkins Advantage MD PPO
- TRICARE East Select
- Kaiser Permanente Flexible Choice 3-tier POS
- OCI Direct (HMO)
- CareFirst Community Health Plan of MD
- IH-EPO Plus
- AmeriHealth Caritas DC Healthy Families
- Navigate
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- United Healthcare Choice Plus
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Amerigroup DC Alliance
- Coventry of Delaware HMO/PPO
- Aetna Classic 3500
- Medicare Direct
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- CareFirst MedStar PPO
- Humana Gold Plus HMO
- Police and Fire Clinic
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Open Choice (PPO)
- Anthem Federal Employee Program Standard
- CareFirst EPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Core Essential (HMO)
- CIGNA EPO
- Aetna Advantage 6350PD
- Amerigroup DC Healthy Families
- Aetna Worker's Compensation Network
- Aetna Medicare Advantage PFFS Plan
- Maryland Physicians Care MCO
- United Healthcare Options (PPO)
- United HealthCare Community Plan - Maryland Health Choice Program
- United Healthcare Community Plan - VA Medicaid MCO
- Choice POS II
- Coventry Health Care National Network PPO
- Aetna Basic
- First Health PPO
- Employee Health Plan
- Priority Partners - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers Plus
- Blue Choice Advantage
- IH-Indemnity
- Anthem BCBS of VA HealthKeepers (HMO)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Uniformed Services Family Health Plan
- Kaiser Permanente Medicare Advantage Signature and Select
- Kaiser Permanente Signature - Added Choice
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Sentara Health
- M.D. IPA (HMO)
- CareFirst Administrators
- United Healthcare Navigate Cardiac Global
- Magellan Complete Care of VA - VA Medicaid MCO
- CareFirst NASCO
- Optimum Choice Preferred (POS)
- Options PPO Cardiac Global
- Mamsi Life & Health (Indem./PPO)
- Private Fee-for-Service Plans (PFFS)
- Aetna Student Health Insurance
- Network OA
- Veterans Affairs Community Care Network
- Anthem Federal Employee Program Basic
- Kaiser Permanente Select
- Aetna VA Exchange
- BlueChoice Open Access
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- DC/MD SHOP QHP Small Business Plans
- Aetna Elect Choice/ Open Access (POS)
- United Healthcare Choice
- CareFirst Blue Card Program
- Aetna Classic 5000
- CareFirst Dual Prime HMO-SNP
- CIGNA HMO Open Access
- United Healthcare Choice Cardiac Global
- WellPoint Maryland - Maryland Health Choice
- IH-Open HMO
- Anthem BCBS Medi Blue SNP
- Aetna HMO
- Anthem BCBS Medi Blue Dual Adv
- IH-POS
- Advantra Platinum (PPO)
- CIGNA POS/Network POS
- Cigna True Choice Plus Medicare (PPO)
- Choice POS
- Alterwood Advanatge HMO & DSNP Plans
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Optimum Choice
- United Healthcare Select HMO - EPO/NPP
- United Healthcare Choice Plus Cardiac Global
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Kaiser Permanente Signature
- Aetna Classic 5000PD
- Aetna Advantage 6350
- M.D. IPA Preferred (POS)
- TriWest Healthcare Alliance
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- HealthyBlue PPO
- IH-POS Plus
- Johns Hopkins Advantage MD PLUS PPO
- Aetna Quality Point of Service (POS)
- Kaiser Maryland Medicaid MCO
- UHC Passport
- CareFirst Group Medicare Advantage
- Geisinger Medicare Advantage
- CareFirst Maryland Indemnity or PPO
- MedStar Family Choice - Maryland Health Choice
- CIGNA Indemnity
- NYC Medicare Advantage Plus
- Select HMO/HealthFund/Health Network
- Kaiser Permanente Select Cardiac Global
- CareFirst Federal Employee Program (Std. & Basic PPO)
- IH-Open HMO Option
- CareFirst MedStar Select PPO
- HumanaChoice Honor's plan PPO
- IH-PPO
- CIGNA SureFit (HMO)
- Cigna Preferred Medicare (HMO)
- Lasso Healthcare - Medicare Medical Savings Account
- Aetna Advantage 5750
- Aetna Managed Choice (POS)
- Aetna Traditional Choice (PPO)
- POS OA
- Choice Fund PPO
- Cigna Alliance Medicare (HMO)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-HMO
- Choice POS II Open Access
- Aetna Better Health of VA
- CareFirst Maryland Point of Service Plan
- AmeriHealth Caritas DC Healthcare Alliance
- AMERIVANTAGE/Amerigroup Community Care
- Private Health Care Systems (PPO)
- Aetna Premier 200PD
- OA Plus
- TRICARE East Prime
- MedStar Family Choice DC Healthcare Alliance
- CIGNA PPO Plus
- Humana Medicare Advantage - PPO
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Aetna Managed Choice Open Access (POS)
- CIGNA HMO & Network (HMO)
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Erickson Advantage Plans
- Jai Medical Systems - Maryland Health Choice
- Great-West Healthcare POS/CIGNA
- Medicare FFS
- IH-Open Network Only Plus
- Cigna TotalCare (HMO D-SNP)
- Healthy Blue (HMO, POS)
- Optima Family Care MCO - VA Medicaid MCO
- Choice Care Network/HUMANA (PPO)
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CareFirst Blue Preferred PPO
- Aetna Signature Administrator PPO/TPA
- Beech Street PPO
- HumanaChoice PPO
- Anthem BCBS Medi Blue Plus
- Cigna True Choice Medicare (PPO)
- Kaiser Permanente Select - Added Choice
- CareFirst BlueChoice HMO
- CareFirst Blue Choice Opt Out Open Access
- Tricare Reserve Select
- Johns Hopkins Advantage MD HMO
- Aetna Better Health of MD
- First Health PPO
- IH-Network Only Plus
- CIGNA Connect EPO
- MedStar Family Choice DC Healthy Families
- CareFirst FEP Blue Focus
Videos
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Board Certification: American Board of Internal Medicine, Internal Medicine
Fellowship: Medstar-Georgetown University Medical Center (2019)
Residency: Georgetown University Hospital (2016)
Medical School: Georgetown University (2012)
Awards
- 2023 and 2024 Castle Connolly Top Doctor in Gastroenterology
- 2023, 2024, and 2025 Washingtonian Top Doctor in Gastroenterology
- 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
Hospital affiliations
News and publications
- Dr. Jennings talking with Men's Health on acid reflux, swallowing, and coughs
- Facebook Live: Colon Cancer Prevention
- National Colorectal Cancer Awareness Month 2023: Screening, risks and more
- Study: Colon cancer cases increase among younger adults
- Washington ABC7 National Colorectal Cancer Awareness 2023
- Health Watch: Avoiding holiday heartburn with Dr. Joseph Jennings
- Wondering Why Your Stomach Hurts After You Eat? Here Are 9 Possible Reasons
- Dr. Jennings promoting Colon Cancer Awareness Month
- 12 Days of Wellness - Dr. Jennings talks about celiac disease and holiday meals
- Dr. Jennings talks about COVID-19 and the GI Tract on NBC Washington
- Dr. Jennings recognized by the American College of Gastroenterology
Selected/Recent Publications
- Breast Cancer Metastasis to the Gastrointestinal Tract With Unusual Endoscopic and Histologic Presentations. Kimchy, Alexandra & Umoren, Mfoniso & Rosenberg, Jessica & Ilagan, Charmaine & Nithagon, Pichayut & Shafa, Shervin & Jennings, Joseph. (2022). ACG case reports journal. 9. e00938. 10.14309/crj.0000000000000938.
- 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.