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
Practice locations
Distance from Change Location Enter your Location
6862 Elm St
Ste 740
McLean, VA, 22101
3800 Reservoir Rd NW
Main Bldg 2nd Fl
Washington, DC, 20007
1133 21st St NW
Bldg 2 6th Fl
Washington, DC, 20036
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
- CIGNA SureFit (HMO)
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- OA Plus
- CIGNA PPO
- First Health PPO
- Great-West Healthcare POS/CIGNA
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- TRICARE East Select
- Uniformed Services Family Health Plan
- United Healthcare Choice Plus Cardiac Global
- IH-Open HMO
- IH-PPO
- CareFirst MedStar PPO
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Humana Gold Plus HMO
- HealthyBlue PPO
- Humana Medicare Advantage - HMO Open Access
- United HealthCare Community Plan - Maryland Health Choice Program
- IH-POS
- Aetna Student Health Insurance
- CareFirst Maryland Point of Service Plan
- CIGNA HMO Open Access
- Navigate
- Medicare Direct
- Anthem BCBS of VA HealthKeepers (HMO)
- CareFirst Dual Prime HMO-SNP
- Maryland Physicians Care MCO
- IH-Network Only Plus
- United Healthcare Choice Cardiac Global
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CareFirst Group Medicare Advantage
- Kaiser Permanente Select - Added Choice
- United Healthcare Choice
- UnitedHealthcare and AARP Medicare Complete Plans
- CareFirst Blue Choice Opt Out Open Access
- Aetna Classic 5000PD
- Aetna Quality Point of Service (POS)
- Choice POS II
- Sentara Health
- HighMark
- IH-EPO Plus
- Johns Hopkins Advantage MD PPO
- Options PPO Cardiac Global
- Core Essential (HMO)
- United Healthcare Choice Plus
- Cigna Preferred Medicare (HMO)
- Private Health Care Systems (PPO)
- CIGNA POS/Network POS
- WellPoint Maryland - Maryland Health Choice
- Aetna Basic
- CareFirst BlueChoice HMO
- CIGNA HMO & Network (HMO)
- Kaiser Permanente Flexible Choice 3-tier POS
- Advantra Platinum (PPO)
- Medicare Advantage - Advantra Value (PPO)
- CIGNA Connect EPO
- Kaiser Permanente Signature
- Aetna Premier 200PD
- IH-Open POS Plus
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Kaiser Permanente Medicare Plus
- United Healthcare Select Plus (POS)
- Optimum Choice Preferred (POS)
- Johns Hopkins Advantage MD HMO
- MedStar Family Choice - Maryland Health Choice
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- IH-HMO
- HumanaChoice Honor's plan PPO
- Geisinger Medicare Advantage
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Aetna Advantage 6350
- IH-Open POS II
- CareFirst Blue Preferred PPO
- Employee Health Plan
- Amerigroup DC Alliance
- CareFirst Maryland Indemnity or PPO
- Anthem BCBS Medi Blue SNP
- UnitedHealthcare Medicare Adv. Special Needs Plans
- United Healthcare Navigate Cardiac Global
- Anthem BCBS of VA HealthKeepers Plus
- Cigna TotalCare (HMO D-SNP)
- Aetna Open Choice (PPO)
- CareFirst Community Health Plan of MD
- Veterans Affairs Community Care Network
- IH-Open EPO Plus
- Tricare Reserve Select
- Anthem BCBS Medi Blue Dual Adv
- CIGNA EPO
- AMERIVANTAGE/Amerigroup Community Care
- CareFirst NASCO
- Healthy Blue (HMO, POS)
- Cigna True Choice Plus Medicare (PPO)
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Medicare Advantage PFFS Plan
- TRICARE East Prime
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- NYC Medicare Advantage Plus
- IH-Open Network Only Plus
- Blue Choice Advantage
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- CareFirst EPO
- Aetna Classic 5000
- Aetna Managed Choice Open Access (POS)
- Aetna Better Health of MD
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Anthem Federal Employee Program Standard
- United Student Resources
- Johns Hopkins Advantage MD PLUS PPO
- Cigna True Choice Medicare (PPO)
- Medicare FFS
- Erickson Advantage Plans
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Cigna Achieve Medicare (HMO C-SNP)
- MedStar Family Choice DC Healthcare Alliance
- Select HMO/HealthFund/Health Network
- Aetna Traditional Choice (PPO)
- DC/MD SHOP QHP Small Business Plans
- Aetna Worker's Compensation Network
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Coventry Health Care National Network PPO
- Police and Fire Clinic
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- CareFirst (NCA) Indemnity
- United Healthcare Community Plan - VA Medicaid MCO
- Mamsi Life & Health (Indem./PPO)
- OCI Direct (HMO)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Alterwood Advanatge HMO & DSNP Plans
- First Health PPO
- United Healthcare Options (PPO)
- AmeriHealth Caritas DC Healthy Families
- Aetna HMO
- Kaiser Permanente Signature - Added Choice
- MedStar Family Choice DC Healthy Families
- CareFirst FEP Blue Focus
- IH-Indemnity
- Aetna Medicare Advantage HMO & PPO Plans
- CareFirst Administrators
- MultiPlan, Inc
- Choice POS
- CIGNA Indemnity
- TriWest Healthcare Alliance
- Choice POS II Open Access
- Choice Fund PPO
- Humana Medicare Advantage - PPO
- AmeriHealth Caritas DC Healthcare Alliance
- CIGNA PPO Plus
- M.D. IPA Preferred (POS)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Coventry of Delaware HMO/PPO
- United Healthcare Select HMO - EPO/NPP
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Kaiser Maryland Medicaid MCO
- Cigna Alliance Medicare (HMO)
- Health Services for Children with Special Needs
- Aetna VA Exchange
- TRICARE for Life East
- Priority Partners - Maryland Health Choice
- Optimum Choice
- Private Fee-for-Service Plans (PFFS)
- Amerigroup DC Healthy Families
- Aetna Advantage 5750
- CareFirst MedStar Select PPO
- United Medicare Private Fee-for-Service (PFFS) plans
- Lasso Healthcare - Medicare Medical Savings Account
- Aetna Elect Choice/ Open Access (POS)
- IH-POS Plus
- Aetna Advantage 6350PD
- Aetna Classic 3500
- UnitedHealthcare Individual Exchange Plans
- Beech Street PPO
- Aetna Managed Choice (POS)
- Aetna Better Health of VA
- Jai Medical Systems - Maryland Health Choice
- BlueChoice Open Access
- Choice Care Network/HUMANA (PPO)
- POS OA
- IH-Open HMO Option
- Aetna Signature Administrator PPO/TPA
- UHC Passport
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Anthem BCBS Medi Blue Plus
- Network OA
- Coventry Health Care of Virginia
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Kaiser Permanente Select
- CareFirst Blue Card Program
- Anthem Federal Employee Program Basic
- HumanaChoice PPO
- Kaiser Permanente Medicare Advantage Signature and Select
- Magellan Complete Care of VA - VA Medicaid MCO
- M.D. IPA (HMO)
- Kaiser Permanente Select Cardiac Global
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.