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 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, Wedenesday 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 (First Wednesdays of each month)
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 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
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Private Fee-for-Service Plans (PFFS)
- IH-POS Plus
- Healthy Blue (HMO, POS)
- TriWest Healthcare Alliance
- Aetna Traditional Choice (PPO)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CareFirst Maryland Indemnity or PPO
- CIGNA HMO Open Access
- Choice Fund PPO
- Sentara Health
- CareFirst MedStar PPO
- OCI Direct (HMO)
- Aetna Open Choice (PPO)
- HealthyBlue PPO
- Anthem BCBS Medi Blue Dual Adv
- CareFirst Blue Preferred PPO
- Aetna Classic 3500
- Choice POS II
- MultiPlan, Inc
- IH-EPO Plus
- Network OA
- Options PPO Cardiac Global
- TRICARE East Select
- Alterwood Advanatge HMO & DSNP Plans
- United Healthcare Navigate Cardiac Global
- Kaiser Permanente Signature - Added Choice
- United Healthcare Choice Plus
- CareFirst Dual Prime HMO-SNP
- CIGNA PPO Plus
- Erickson Advantage Plans
- Cigna Achieve Medicare (HMO C-SNP)
- UnitedHealthcare and AARP Medicare Complete Plans
- AMERIVANTAGE/Amerigroup Community Care
- United Medicare Private Fee-for-Service (PFFS) plans
- HighMark
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Advantage 6350PD
- BlueChoice Open Access
- MedStar Family Choice DC Healthcare Alliance
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Employee Health Plan
- Kaiser Permanente Medicare Plus
- United Student Resources
- Mamsi Life & Health (Indem./PPO)
- Aetna Advantage 6350
- CIGNA PPO
- Humana Medicare Advantage - PPO
- United Healthcare Community Plan - VA Medicaid MCO
- Kaiser Permanente Signature
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Aetna VA Exchange
- Choice POS
- IH-PPO
- Aetna Quality Point of Service (POS)
- Choice Care Network/HUMANA (PPO)
- First Health PPO
- POS OA
- HumanaChoice PPO
- Kaiser Permanente Select Cardiac Global
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst (NCA) Indemnity
- Aetna Elect Choice/ Open Access (POS)
- TRICARE for Life East
- Private Health Care Systems (PPO)
- CareFirst EPO
- CareFirst NASCO
- Aetna Better Health of VA
- Tricare Reserve Select
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- CareFirst Maryland Point of Service Plan
- Kaiser Permanente Medicare Advantage Signature and Select
- United Healthcare Options (PPO)
- Medicare FFS
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- AmeriHealth Caritas DC Healthy Families
- CIGNA Connect EPO
- Anthem BCBS Medi Blue Plus
- MedStar Family Choice - Maryland Health Choice
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Magellan Complete Care of VA - VA Medicaid MCO
- Aetna Medicare Advantage HMO & PPO Plans
- Cigna TotalCare (HMO D-SNP)
- United Healthcare Choice
- NYC Medicare Advantage Plus
- Anthem Federal Employee Program Standard
- AmeriHealth Caritas DC Healthcare Alliance
- CareFirst Administrators
- Cigna True Choice Plus Medicare (PPO)
- WellPoint Maryland - Maryland Health Choice
- United Healthcare Choice Cardiac Global
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Veterans Affairs Community Care Network
- CareFirst Blue Choice Opt Out Open Access
- Optima Family Care MCO - VA Medicaid MCO
- CIGNA SureFit (HMO)
- Kaiser Permanente Select - Added Choice
- Medicare Direct
- Aetna Advantage 5750
- Aetna Classic 5000PD
- CareFirst Community Health Plan of MD
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Premier 200PD
- United HealthCare Community Plan - Maryland Health Choice Program
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Beech Street PPO
- Cigna Preferred Medicare (HMO)
- Humana Medicare Advantage - HMO Open Access
- Aetna Medicare Advantage PFFS Plan
- CareFirst FEP Blue Focus
- Optimum Choice Preferred (POS)
- IH-Open POS II
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- DC/MD SHOP QHP Small Business Plans
- CIGNA Indemnity
- United Healthcare Select HMO - EPO/NPP
- Johns Hopkins Advantage MD PLUS PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- United Healthcare Choice Plus Cardiac Global
- IH-POS
- Coventry Health Care of Virginia
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Aetna Basic
- CIGNA HMO & Network (HMO)
- Johns Hopkins Advantage MD PPO
- Navigate
- Core Essential (HMO)
- IH-Open HMO Option
- Aetna Better Health of MD
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- IH-Open POS Plus
- Optimum Choice
- HumanaChoice Honor's plan PPO
- Choice POS II Open Access
- IH-Network Only Plus
- CareFirst Blue Card Program
- UnitedHealthcare Individual Exchange Plans
- Advantra Platinum (PPO)
- Jai Medical Systems - Maryland Health Choice
- Kaiser Maryland Medicaid MCO
- Aetna Managed Choice Open Access (POS)
- Great-West Healthcare POS/CIGNA
- IH-Open HMO
- Medicare Advantage - Advantra Value (PPO)
- Uniformed Services Family Health Plan
- Johns Hopkins Advantage MD HMO
- Aetna HMO
- Select HMO/HealthFund/Health Network
- Priority Partners - Maryland Health Choice
- Aetna Student Health Insurance
- Aetna Worker's Compensation Network
- IH-Open EPO Plus
- Amerigroup DC Alliance
- MedStar Family Choice DC Healthy Families
- Anthem BCBS of VA HealthKeepers Plus
- IH-Open Network Only Plus
- Humana Gold Plus HMO
- Anthem BCBS Medi Blue SNP
- CareFirst Federal Employee Program (Std. & Basic PPO)
- CIGNA EPO
- Aetna Managed Choice (POS)
- First Health PPO
- United Healthcare Select Plus (POS)
- TRICARE East Prime
- Police and Fire Clinic
- Health Services for Children with Special Needs
- CareFirst MedStar Select PPO
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Cigna True Choice Medicare (PPO)
- Coventry of Delaware HMO/PPO
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Aetna Classic 5000
- Blue Choice Advantage
- CIGNA POS/Network POS
- Maryland Physicians Care MCO
- IH-HMO
- Aetna Signature Administrator PPO/TPA
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- OA Plus
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Coventry Health Care National Network PPO
- UHC Passport
- Kaiser Permanente Select
- Lasso Healthcare - Medicare Medical Savings Account
- Cigna Alliance Medicare (HMO)
- M.D. IPA Preferred (POS)
- Geisinger Medicare Advantage
- M.D. IPA (HMO)
- Amerigroup DC Healthy Families
- CareFirst BlueChoice HMO
- CareFirst Group Medicare Advantage
- IH-Indemnity
- Anthem Federal Employee Program Basic
Videos
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Board Certification: American Board of Internal Medicine, Gastroenterology
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.