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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.

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.

Ikuo Hirano

Professor of Medicine (Gastroenterology and Hepatology)

Dr. Hirano is Professor of Medicine at Northwestern University Feinberg School of Medicine. He attended college at Yale University, medical school at the University of Pennsylvania and completed his medical residency and GI fellowship at Beth Israel Hospital in Boston. He took a faculty position at the West Roxbury VA Medical Center and Harvard Medical School working in esophageal swallowing physiology before coming to Northwestern in 1998. He is currently serving as Vice-Chair for the American Gastroenterological Association’s Esophageal, Gastric and Duodenal (EGD) section, site principal inv...

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.

Greg S Cohen

Clinical Associate 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...

Christian G Stevoff

Assistant Professor of Medicine (Gastroenterology and Hepatology)

General gastroenterology

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...

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

Stephen B Hanauer

Professor of Medicine (Gastroenterology and Hepatology)

Crohn's disease and Ulcerative Colitis

Stephen D Miller

Professor of Microbiology-Immunology, Dermatology and Medicine (Gastroenterology and Hepatology)

The laboratory is interested in understanding the mechanisms underlying the pathogenesis and immunoregulation of T cell-mediated autoimmune diseases, allergic disease, and rejection of tissue and organ transplants. In particular, we are studying the therapeutic use of short-term administration of costimulatory molecule agonists/antagonists and specific immune tolerance induced by infusion of antigen-coupled apoptotic cells and PLG nanoparticles for the treatment of animal models of multiple sclerosis and type 1 diabetes, allergic airway disease, as well as using tolerance for specific preventi...

A Aziz Aadam

Associate Professor of Medicine (Gastroenterology and Hepatology)

Dr. Aadam is an interventional gastroenterologist with specialized expertise in gastrointestinal oncology as well as complex pancreas and biliary disorders. He is part of a mutli-disciplinary team that incorporates the latest research and state of the art technology into a patient centered comprehensive care plan. He is active in clinical research and has been invited to present his work at several national conferences. Dr. Aadam has undergone additional training to perform advanced endosopic procedures such as endoscopic ultrasound (EUS), ERCP, and stent placement within the GI tract. He is c...

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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

Physician-Scientist Training & Resources

We offer a wide range of resources, mentorship opportunities and formal training programs 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.

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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