Penn Medicine Provider
Gastroenterology
Alexandra H. Weiss, MD
4.9
(303)
Accepting new patients
Sees patients age 18 and up
Penn Digestive and Liver Health Center University City
Make an appointmentCall 800-789-7366

About me

  • Assistant Professor of Clinical Medicine (Gastroenterology)

Education and training

  • Medical School: Howard University College of Medicine
  • Residency: Temple University Hospital
  • Fellowship: Cooper University Hospital

What my patients think about me

Average Rating
4.9

306 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

June 2025
5.0
5.0
she is good
May 2025
5.0
5.0
efficient communication and understanding
May 2025
5.0
5.0
dr weiss is a wonderful doctor! she has a great bedside manner. such a sweet and knowledgeable doctor. she answers all your questions and listens to all concerns.
May 2025
5.0
5.0
she is very knowledgeable and easy to communicate with.

Insurance accepted

My Locations

Learn about location

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Weiss is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

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

Khan N, Pernes T, Weiss A, Trivedi C, Patel M, Medvedeva E, Xie D, Yang YX Efficacy of Vedolizumab in a nationwide cohort of elderly inflammatory bowel disease patients , Inflammatory Bowel Diseases : 2022

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, Trivedi C, Pernes T, Patel M, Khan N. Efficacy of vedolizumab in a nationwide cohort of elderly inflammatory bowel disease patients. (Poster Presentation) , DDW : 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

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