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Northwestern University Feinberg School of Medicine
Department of Medicine

Gastroenterology and Hepatology

About Us

The Division of Gastroenterology and Hepatology is dedicated to clinical practice, research and education in esophageal and motility disorders, including achalasia, dysphagia and GERD.

“The division has a robust clinical practice that resides within our new Digestive Health Center … a true collaborative effort.”

– John Pandolfino, MD

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What We Do

Faculty: Meet the Team

View individual profiles of our faculty members and learn about their research and clinical specialties.

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Greg S Cohen

Clinical Assistant Professor of Medicine (Gastroenterology and Hepatology)

Dr. Cohen practices General Gastroenterology with additional special focuses on Crohn's Disease, Ulcerative Colitis, and non surgical treatment of hemorrhoids. Dr. Cohen is originally from Potomac, Maryland. He completed his undergraduate work at Cornell University and medical school at the University of Maryland. Dr. Cohen moved to Chicago in 1998 where he completed his residency at Northwestern followed by a 4 year combined clinical and research GI fellowship under an NIH training grant at the University of Chicago. He has been in practice at Northwestern since 2005. Dr. Cohen is board certi...

Lisa B VanWagner

Assistant Professor of Medicine (Gastroenterology and Hepatology) and Preventive Medicine

Dr. VanWagner is board certified in Internal Medicine, Gastroenterology & Hepatology and Transplant Hepatology and holds active medical licensure in the state of Illinois. She received her medical degree from the University of Virginia School of Medicine in 2007. She completed her internship and residency in Internal Medicine at Northwestern University Feinberg School of Medicine in Chicago, IL in 2010 and then served as Chief Medical Resident from 2010-2011. She also obtained her master’s degree in Clinical Investigation from the Northwestern University Graduate School in 2011. Dr. VanWagner ...

Peter Kahrilas

Professor of Medicine (Gastroenterology and Hepatology)

Esophageal disorders, Gastroesophageal reflux disease, Swallowing disorders

Richard Green

Professor of Medicine (Gastroenterology and Hepatology)

Hepatology (liver)

Rajesh N Keswani

Associate Professor of Medicine (Gastroenterology and Hepatology)

Rajesh N. Keswani, MD, MS, is a gastroenterologist and nationally-recognized expert in interventional endoscopy who leads efforts to improve healthcare quality. He is the Medical Director of Quality for the Northwestern Medicine Digestive Health Center. Nationally, he informs clinical practice guidelines and endoscopy training standards by serving on committees of the American Society for Gastrointestinal Endoscopy, American Gastroenterological Association, and National Comprehensive Cancer Network. Dr. Keswani earned his undergraduate and medical degrees from Boston University, finished resid...

Daniel R Ganger

Professor of Medicine (Gastroenterology and Hepatology) and Surgery (Organ Transplantation)

Received Medical Degree a the University of Buenos Aires. Internal Medicine training at St Louis University Missouri and Gastroenterology /Hepatology at Northwestern University. Academic Title: Professor of Medicine and Surgery Feinberg School of Medicine.

Josh Levitsky

Professor of Medicine (Gastroenterology and Hepatology), Medical Education and Surgery (Organ Transplantation)

Liver transplantation, immunosuppression, biomarkers of rejection and chronic kidney disease in liver recipients, immunological tolerance

John Pandolfino

Professor of Medicine (Gastroenterology and Hepatology)

Esophageal Disorders, Swallowing Disorders, Gastroesophageal Reflux Disease (GERD), Eosinophilic Esophagitis

Marie-Pier Tetreault

Assistant Professor of Medicine (Gastroenterology and Hepatology)

In the Tetreault Lab, our goal is to better understand the crosstalk between epithelial cells and their surrounding microenvironment (immune cells, fibroblasts, endothelial cells). A particular area of expertise of our laboratory is in defining the role of epithelial inflammatory mediators in esophageal tissue homeostasis and esophageal disease pathogenesis. Our diseases of interest include esophageal cancer, eosinophilic esophagitis, scleroderma esophageal disease and achalasia. Our research program focuses on two key inflammatory pathways: the IKKß/NF¿B and STAT3 pathways. We employ novel th...

Arvydas D Vanagunas

Professor of Medicine (Gastroenterology and Hepatology)

Endoscopic ultrasound, Ulcer disease

Contact Us

We welcome your questions and comments.

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Diversity and Inclusion

The department works toward an environment of inclusion and support through the Diversity and Cultural Affairs Council and through several dedicated events and initiatives.

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Housestaff Research Portal

Graduate Research Resources

We offer a wide range of resources, mentorship opportunities and training to help our residents and fellows excel as physician-scientists. Explore all of the resources and hear from housestaff who are making research a major part of their career development plans.

Visit the Housestaff Research Portal

Giving

We invite your philanthropic partnership in helping us achieve our research and teaching missions each day.

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Contact MaryPat Mauro for more information on supporting the Division of Gastroenterology and Hepatology at 312-503-1090 or marypat.mauro@northwestern.edu

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