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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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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.

Adam C Stein

Assistant Professor of Medicine (Gastroenterology and Hepatology)

I specialize in the evaluation and treatment of gastrointestinal disorders that involve the small bowel, including Crohn's disease, intestinal failure (such as from short bowel syndrome), celiac disease, enteropathy, fat/protein malabsorption, cystic fibrosis, and obscure gastrointestinal bleeding. Additionally, I see patients with ulcerative colitis. I perform both video capsule endoscopy as well as double balloon enteroscopy, and am able to evaluate abnormal small bowel findings as well as small bowel bleeding. I also specialize in the evaluation and management of malnutrition, providing nut...

Nirmala Gonsalves

Professor of Medicine (Gastroenterology and Hepatology)

Eosinophilic esophagitis, eosinophilic gastrointestinal disease, gastroesophageal reflux disease, esophageal disorders, food allergy and gastrointestinal disease, celiac disease, general gastroenterology

Darren M Brenner

Associate Professor of Medicine (Gastroenterology and Hepatology) and Surgery

Gastrointestinal motility disorders and pelvic floor disorders including but not limited to Constipation/Fecal Incontinence/Irritable Bowel Syndrome/Dyspepsia/Gastroparesis/Opioid related bowel dysfunction as well as complications of systemic motility disorders with an emphasis on Scleroderma.

Peter Kahrilas

Professor of Medicine (Gastroenterology and Hepatology)

Esophageal disorders, Gastroesophageal reflux disease, Swallowing disorders

David M Shapiro

Assistant Professor of Medicine (Gastroenterology and Hepatology)

I perform primary and secondary endoscopic (non-surgical) therapies for obesity, including placement of the Orbera gastric balloon, the Aspire Assist device and endoscopic sleeve gastroplasty. I also perform gastro-jejunal outlet reduction for weight regain after bariatric surgery. I have also been trained to use the EsophyX device (TIF procedure) as a minimally invasive (non-surgical) treatment for GERD. I am also interested in endoscopic treatment of post-surgical complications and endoscopic suturing.

John Pandolfino

Professor of Medicine (Gastroenterology and Hepatology)

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

Lisa B VanWagner

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

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 ...

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...

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...

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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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