Alexandra H. Weiss, MD

Gastroenterology

4.9 with 281 ratings

Sees patients age 18 and up

Assistant Professor of Clinical Medicine (Gastroenterology)
Dr. Weiss is a Penn Medicine physician.

Call 800-789-7366 Request Appointment

Abdominal Bloating
Abdominal Distention
Abdominal Pain
Abnormal Liver Function
Abnormal Stool
Acute Pancreatitis
Alcoholic Liver Disease
Altered Bowel Habits
Anal Pain
Anal Spasm
Annular Pancreas
Anorexia
Autoimmune Enteropathy
Autoimmune Hepatitis
Barrett's Esophagus
Blood in Stool
Bowel Disorders
Bowel Dysmotility
Bright Red Blood in Rectum
C. Difficile (Clostridium Difficile Diarrhea)
Celiac Disease (Celiac Sprue)
Cholangitis
Cholestasis
Chronic Diarrhea
Chronic Pancreatitis
Colitis
Collagenous Colitis
Colon Polyps
Colon Tumor
Colonic Inertia
Colonoscopy
Constipation
Crigler Najjar Syndrome
Crohn's Disease
Cyclic Vomiting Syndrome
Difficulty Swallowing (Dysphagia)
Digestive Disorders
Diverticular Disease
Diverticulitis (Colonic Diverticulitis)
Duodenal Ulcer
Duodenitis
Dyspepsia (Indigestion)
Early Satiety
Eosinophilic Colitis
Eosinophilic Enteritis
Eosinophilic Esophagitis (EoE)
Eosinophilic Gastritis
Epigastric Pain
Eructation
Esophageal Achalasia
Esophageal Disease
Esophageal Motility Disorders
Esophageal Spasm
Esophageal Stricture
Esophageal Thickening
Esophageal Ulcer
Esophageal Varices
Esophagitis
Esophagus Tumors
Fatty Liver Disease
Fecal Impaction
Fecal Incontinence (Bowel incontinence)
Feeding Tube Management
Flatulence
Focal Nodular Hyperplasia
Gallbladder Disease
Gallbladder Inflammation (Cholecystitis)
Gallbladder Polyp
Gallbladder Stone (Cholelithiasis)
Gastric Anomaly
Gastric Ulcer
Gastritis
Gastroenteritis
Gastrointestinal Amyloid
Gastrointestinal Bleeding
Gastrointestinal Cancer Screening
Gastrojejunal Ulcer
Gastroparesis
Gastroscopy
Giardiasis
Gluten Sensitivity
H. Pylori Infection
Heartburn (Gastroesophageal Reflux Disease)
Hematemesis
Hemochromatosis
Hepatitis
Hepatitis B
Hepatitis C
Hepatomegaly
Hernia
Hiatal Hernia
Ileitis
Inflammatory Bowel Disease (IBD)
Intestinal Obstruction
Intestinal Pseudo-Obstruction (Ogilvie Syndrome)
Intractable Vomiting
Irritable Bowel Syndrome
Ischemic Colitis
Jaundice
Lactose Intolerance
Liver Cirrhosis
Liver Disease
Liver Mass
Lymphocytic Colitis
Lynch Syndrome
Malabsorption
Melena
Microscopic Colitis
Motility Disorders
Nausea
Non Alcoholic Steatohepatitis
Non-Alcoholic Fatty Liver Disease
Obstipation
Obstructive Jaundice
Odynophagia
Pancreas Divisum
Pancreatic Cyst
Pancreatic Insufficiency
Pancreatic Pseudocyst
Pancreaticobiliary Disease
Pancreatitis (Pancreas Inflammation)
Peptic Ulcer Disease (Stomach Ulcers)
Peritonitis
Pernicious Anemia
Peutz-Jeghers Syndrome
Polyposis Syndrome
Portal Hypertension
Portal Hypertensive Gastropathy
Postprandial Diarrhea
Proctitis
Proctosigmoidoscopy
Rectal Bleeding
Rectal Pain
Short Bowel Syndrome (Short Gut Syndrome)
Sigmoidoscopy
Small Bowel Disease
Steatorrhea
Stomach Cramps
Stomach Disorders
Swallowing Disorders
Toxic Liver Injury
Ulcerative Colitis
Upper GI Endoscopy
Vomiting
Whipple's Disease
Wilson's Disease
Zenker's Diverticulum (Esophageal Diverticulum)

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Programs and Centers

Penn Medicine's programs and centers combine doctors from many disciplines to coordinate care from start to finish. Dr. Weiss is part of these programs:

Penn Inflammatory Bowel Diseases Program

Education and Training

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

Primary Location

Penn Digestive and Liver Health Center University City

Penn Medicine University City
11th Floor
3737 Market Street
Philadelphia, PA 19104

Map Call 800-789-7366

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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.

Overall Ratings

out of 5 ; Ratings;

The Patient Satisfaction Rating is an average of all responses to the care provider related question shown above from our internal platform, PMX Feedback. Responses are measured on a scale of 1 to 5 with 5 being the best score. Scores reflect either the most recent 12 months of surveys or the most recent 30 surveys overall. Data is updated monthly and comments remain on the profile for 12 months.

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.

Patients that are treated in outpatient or hospital environments may receive different surveys.

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
Amerihealth Caritas (Transplant patients only)
Centivo Health Plan
Cigna
Cigna Medicare
Claim Watcher (Homestead/Index)
Clover Health Plan
Geisinger Health Plan
Geisinger Medicaid
Global Medical Management
HealthAmerica / HealthAssurance, a Coventry Plan
HealthPartners
HealthSmart
Highmark Blue Shield
Highmark Blue Shield Medicare
Highmark Wholecare
Horizon Blue Cross Blue Shield of New Jersey
Humana / Medicare
Imagine Health 360

Independence Blue Cross (Keystone East)
Jefferson Health Plans (fka Health Partners Plans)
Keystone First
Keystone First Medicare
NJ Medicaid
NJ Qualcare
Oscar Health Plan of PA
Oxford Health Plan
PA Health and Wellness (Centene) Medicare
PA Medicaid
PA Medicare
Provider Partners Health Plan
Rail Road Medicare / Palmetto GBA
Tricare
UnitedHealthcare Community Plan
UnitedHealthcare Community Plan PA
UPMC Health Plan
US Family Health Plan
Veterans Choice Program

Selected 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.

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): 1421-1422,2022.

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.

Academic Contact Information

51 North 39th Street
Philadelphia, PA 19104
Patient appointments: 800-789-7366

American College of Gastroenterology, National
American College of Physicians, National
American Gastroenterological Association, National
American Society for Gastrointestinal Endoscopy, National