- Collagenous colitis
- Crohn's disease
- J Pouch complication
- Lymphocytic colitis
- Microscopic colitis
- Pouchitis
- Ulcerative colitis (UC)
- Colonoscopy
Alexandra H. Weiss, MD
Gastroenterology
Accepting new patients
Sees patients age 18 and up
Penn Digestive and Liver Health Center University City
Penn Medicine Provider
About me
- Assistant Professor of Clinical Medicine (Gastroenterology)
Alexandra Weiss, MD joined the Penn faculty in 2020 after completing her advanced fellowship in inflammatory bowel disease (IBD) at the University of Pennsylvania. She is currently an assistant professor of clinical medicine in the division of Gastroenterology and Hepatology. She has been previously been awarded the GI Clinical Excellence award and the Sydney Kimmel teaching award and maintains a robust clinical practice. Dr. Weiss also serves at the EPIC GI Governance Lead where she integrates her passion for direct patient care with her interest in leveraging technology to improve patient care delivery mechanisms.
My education and training
- Howard University College of MedicineMedical School
- Temple University HospitalResidency
- Cooper University HospitalFellowship
Spoken languages
English
English
Reviews
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.
- Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
- Pennsylvania Hospital: Has privileges to treat patients in the hospital.
Dr. Weiss is a Penn Medicine physician.
Qualifications and experience
- Gastroenterology, 2019
- Internal Medicine, 2016
- American College of Gastroenterology, National
- American College of Physicians, National
- American Gastroenterological Association, National
- American Society for Gastrointestinal Endoscopy, National
- Inflammatory bowel disease (IBD) care
- Interventional and advanced endoscopy
- Recognized in Philadelphia magazine's Top Docs issue for 2025
Treatments and conditions
Research
Publications
Alexandra Weiss MD, Edward L Barnes MD MPH, Meenakshi Bewtra MD PhD MPH A Practical Guide to the Use of Upadacitinib in Ulcerative Colitis and Crohn's disease , American Journal of Gastroenterology: 2024
James D Lewis, Lauren E Parlett, Michele L Jonsson Funk, Colleen Brensinger, Virginia Pate, Qufei Wu, Ghadeer K Dawwas, Alexandra Weiss, Brad D Constant, Maureen McCauley, Kevin Haynes, Jeff Yufeng Yang, Douglas E Schaubel, Andres Hurtado-Lorenzo, Michael David Kappelman Incidence, Prevalence, and Racial and Ethnic Distribution of Inflammatory Bowel Disease in the United States , Gastroenterology: 2023
Thanawala S, Weiss AH, Weber A, Tang H, Buchner A. The role of liver transplant in the development of colorectal dysplasia in patients with PSC-IBD. (Poster Presentation) , DDW: 2023
Weiss AH, Thanawala S, Tang H, Weber A, Buchner A. Severity of inflammation as a risk factor for the development of colorectal dysplasia in PSC-IBD. (Poster Presentation) , DDW: 2023
Weiss, A.H. and Buchner, A.M Editorial: colorectal cancer in elderly-onset inflammatory bowel disease—what is the risk? , Aliment Pharmacol Ther, 56(9): 2022,1421-1422
Mahmud N, Weiss A, Trivedi C, Yang YXm Lewis J, Khan N Risk of venous thromboembolism among patients with inflammatory bowel disease who contract severe acute respiratory syndrome Coronavirus 2 , Gastroenterology, 161: 2021
Weiss AH, Bhattacharya A, Ellison S, Osterman MT, Lichtenstein G Lower Adalimumab trough levels are associated with higher risk of infectious complications in patients with IBD , DDW: 2021
Ellison S, Weiss AH, Bhattacharya A, Osterman MT, Lichtenstein G Adalimumab trough concentration is not associated with adverse events in patients with IBD. , DDW: 2021
Abdulhamid A, Weiss AH, Osterman MT, Lichtenstein G, Buchner A. The outcomes of chromoendoscopy vs. white light HD endoscopy for dysplasia surveillance in Inflammatory Bowel disease patients with primary sclerosing cholangitis (Poster Presentation) , DDW: 2021
Weiss AH, Trivedi C, Pernes T, Patel M, Khan N Incidence of infections and malignancy among elderly IBD patients exposed to vedolizumab, prednisone and mesalamine (Poster Presentation) , DDW: 2021