Gary D. Wu, MD
Gastroenterology
Penn Medicine Provider
About me
- Associate Chief for Research, Division of Gastroenterology
- Associate Director, Center for Molecular Studies in Digestive and Liver Disease
- Director, Molecular Biology Core
- Ferdinand G. Weisbrod Professor in Gastroenterology
- Professor of Medicine in Pediatrics
My education and training
- Medical School: Northwestern University Feinberg School of Medicine
- Residency: University of Minnesota
- Fellowship: University of Michigan Health
Spoken languages
English
English
Insurance accepted
Please contact the practice and/or the member services department of your insurance company for specific details before receiving services. Providers may participate in some, but not all, products offered by a health plan; providers may also accept plans at some practice locations but not others.
- Aetna Advantra Cares D-SNP
- Aetna Advantra Credit Value
- Aetna Advantra Eagle HMO
- Aetna Advantra Eagle POS
- Aetna Advantra Premier Plus PPO
- Aetna Advantra Value
- Aetna Advantra Value Plus
- Aetna APCN Plus (Multi-Tier)
- Aetna Better Health Kids (CHIP) - DH Only
- Aetna Flexible Five
- Aetna Freedom Core
- Aetna Gold
- Aetna HMO
- Aetna Philly Prime
- Aetna POS
- Aetna PPO APCN
- Aetna Premier
- Aetna Premier Plus
- Aetna Savings Plus
- Aetna Signature Administrators
- Aetna Student Health Plan PPO
- Aetna Upfront Advantage
- First Health HMO
- First Health POS
- First Health PPO
- Meritain - Aramark (Other)
- Meritain - Aramark (Pennsylvania Premier Medical Plan)
- Americhealth Caritas of PA VIP - LGH Only
- Amerihealth Caritas (Transplant patients only)
- Amerihealth Caritas of PA - LGH Only
- Centivo EPO
- Cigna Healthcare EPO
- Cigna Healthcare HMO
- Cigna Healthcare POS
- Cigna Healthcare PPO
- Claim Watcher (Homestead/ INDECs) Open Access
- Clover Health Choice
- Clover Health Choice Value PPO
- Clover Health Classic HMO
- Clover Health Value
Penn Medicine hospital privileges
- Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
Qualifications and experience
- Internal Medicine, 1989
- American Gastroenterological Association, National
- Crohn's and Colitis Foundation of America (CCFA), National
- Crohn's and Colitis Foundation of Canada, International
- Digestive Disease Research Center (DDRC) at the University of North Carolina, National
- Digestive Disease Research Center (DDRC) at Washington University St. Louis, National
- External Advisory Board, Baylor College of Medicine DDRCC, National
- External Advisory Board, University of Chicago DDRCC, National
- Gastroenterology Research Group, National
- National Institutes of Health (NIH), National
- National Institutes of Health (NIH) Study Sections, National
- United States Department of Agriculture (USDA), National
- VA Merit Review Board, National
Treatments and conditions
Research
Publications
Kim D, Joe HI, Bae JW, Wu GD, Compher CW, Koo H. Fermented food microbiome: influence on oral and gut microbiota, and human health , Nat Rev Microbiol: 2026
Boyle NR, Sekela JJ, Wang M, Mannochio-Russo H, Pyo JJ, Kim MS, Tian S, Koo I, Friedman ES, Tanes C, Anitha M, Tian Y, Morgan EW, Murray IA, Zackular JP, Bittinger K, Lewis JD, Perdew GH, Wu GD, Zemel BS, Dorrestein PC, Bisanz JE, Redinbo MR, Patterson AD. Glucuronidation metabolomic fingerprinting to map host-microbe metabolism , Nat Commun, 17: 2026,6646
Damani RA, Vasisht S, Luks V, Vargas G, Compher C, Titchenell PM, Tasian G, Li H, Wu GD, Witschey WR, Gershuni VM. Sex-Based Differences in Imaging-Derived Body Composition and Their Association with Clinical Malnutrition in Abdominal Surgery Patients , Nutrients, 18: 2026,839
Firrman J, Liu L, Mahalak K, Lemons JMS, Narrowe A, Friedman ES, Wu GD, Van de Weile T. An in vitro model of the small intestinal microbiota provides key insights into interindividual variability in structure and function , mSystems, 11: 2026,e0137325
Mayer LS, Arnold J, Roettele F, Reuter N, Pattekar A, Ohtani T, Ribeiro MM, Siwicki R, Bruder K, Obwegs D, Stahl E, Buechel S, Roehlen N, Kolter J, Mansoori Moghadam Z, Alaswad A, Zhumalidova Z, Li G, Liu X, Li Y, Singh A, Villacorta Hidalgo J, Paraskevopoulou MD, Yajnik V, Juarez J, Ren Y, Li H, Wherry EJ, Lewis JD, Wu GD, Bewtra M, Tomov VT, Thimme R, Bengsch B, Hasselblatt P, Picelli S, Hofmann M, Sagar. Single-cell profiling reveals diverse γδ T cell subsets in ulcerative colitis , Sci Immunol, 11: 2026,eadx8474
Hantsoo L, Ford E, Friedman ES, Hao F, Patterson AD, Bittinger K, Wu GD, Zemel BS, Tanes C. The impact of adverse childhood experiences on gut microbiota and markers of inflammation is mediated by obesity and depression , Brain Behav Immun: 2026
Zemel BS, Wu GD, Ford E, Tanes C, DeRusso PA, Kelly A Early infant appetitive traits are associated with growth status and adiposity in African-American infants and toddlers. , Ann Hum Biol. , 52(1): 2025
Tanes C, Li Y, Falk GW, Ginsberg GG, Wang KK, Iyer PG, Lightdale CJ, Del Portillo A, Lagana SM, Wang TC, Rustgi AK, Quante M, Jin Z, Wu GD, Friedman ES, Bittinger K, Li H, Abrams JA. Increased reflux secondary bile acids are associated with changes to the microbiome and transcriptome in Barrett's esophagus. , Gut, 17(1): 2025
Tanes C, Hu W, Friedman E, Hecht A, Daniel S, Clish C, Lewis JD, Wu GD, Bittinger K. Distinguishing diet- and microbe-derived metabolites in the human gut , Microbiome, 13: 2025,206
Harling LC, Hecht AL, Meyer F, Wu GD. Revisiting nitrogen assimilation strategies in the mammalian gut: lessons from Enterobacteriaceae as pathobiont models and a challenge to the limitation paradigm , Arch Microbiol, 207: 2025,203