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
Locations
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
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
Bloom PP, Garrett WS, Penniston KL, Winkler MH, Hazen SL, Agudelo J, Suryavanshi M, Babiker A, Dodd D, Fischbach MA, Huang KC, Huttenhower C, Joe B, Kalantar-Zadeh K, Knight R, Miller AW, Rabb H, Srivastava A, Tang WHW, Turnbaugh PJ, Walker AW, Wilck N, Xu J, Yang T, Himmelfarb J, Redinbo MR, Wu GD, Woodworth MH, Ackerman AL, Winter S, Rinschen MM, Hassan HA, Biruete A, Anderson AH, Pluznick JL. Microbiota and kidney disease: the road ahead , Nat Rev Nephrol: 2025
Ren X, Clark RM, Bansah DA, Varner EN, Tiffany CR, Jaswal K, Geary JH, Todd OA, Winkelman JD, Friedman ES, Jarrett RN, Zemel BS, Wu GD, Zackular JP, DePas WH, Behnsen J, Palmer LD. Amino acid competition shapes Acinetobacter baumannii gut carriage , Cell Host Microbe: 2025
Hewlett KK, PeBenito A, Hecht AL, Tiffany C, Tanes C, Glover RC, Fawad JA, Friedman ES, Reynolds JC, Bittinger K, Lewis JD, Wu GD, Ahuja NK, Zackular JP. Dietary Fiber Modulates the Window of Susceptibility to Clostridioides difficile Infection , Gastroenterology: 2025
Barekat K, Ghosh S, Herrmann C, Keat K, Assenmacher CA, Tanes C, Wilson N, Sengupta A, Das US, Joshi R, Ritchie MD, Bittinger K, Weljie A, Cadwell K, Bushman FD, Wu GD, FitzGerald GA, Ricciotti E. Concomitant suppression of COX-1 and COX-2 is insufficient to induce enteropathy associated with chronic NSAID use , bioRxiv: 2025
Damani R, 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 , medRxiv: 2025
Hecht AL, Mahmud N, Chaudhry S, Cao JY, Branigan GP, Lee J, Theiller E, Roggiani M, Friedman ES, Herman L, Galis BE, Jones SM, Planet PJ, Zackular JP, Kaplan DE, Serper M, Rajender Reddy K, Moustafa AM, Goulian M, Wu GD. Carbohydrate consumption drives adaptive mutations in Escherichia coli associated with increased risk for systemic infection , bioRxiv: 2025
Yan J, Ren R, Chang R, Dan W, Zhang X, Pan F, Yan B, Lee H, Josie N, Sun G, Peng L, Wu GD, Yang Y. Development and Initial Use of a New Inflammatory Bowel Disease Clinical Database Integrating Both Eastern and Western Clinical Characteristics , Chronic Dis Transl Med, 11: 2025,130-139
Benitez AJ, Tanes C, Friedman ES, Zackular JP, Ford E, Gerber JS, DeRusso PA, Kelly A, Li H, Elovitz MA, Wu GD, Zemel B, Bittinger K. Antibiotic exposure is associated with minimal gut microbiome perturbations in healthy term infants , Microbiome, 13: 2025,21
Soto Ocaña J, Friedman ES, Keenan O, Bayard NU, Ford E, Tanes C, Munneke MJ, Beavers WN, Skaar EP, Bittinger K, Zemel BS, Wu GD, Zackular JP. Metal availability shapes early life microbial ecology and community succession , mBio, 15: 2024,e0153424