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Meet our Faculty

Faculty from across the IU School of Medicine contribute to the unit’s success.

Director

John M. Wo, MD

John M. Wo, MD

Douglas Rex Professor of Gastroenterology and Hepatology

Adult Gastroenterologists

Toyia N. James-Stevenson, MD

Toyia N. James-Stevenson, MD

Associate Professor of Clinical Medicine
William R. Kessler, MD

William R. Kessler, MD

Associate Professor of Clinical Medicine
Thomas V. Nowak, MD

Thomas V. Nowak, MD

Professor of Clinical Medicine
Andrea S. Shin, MD

Andrea S. Shin, MD

Assistant Professor of Medicine
Robert M. Siwiec, MD

Robert M. Siwiec, MD

Assistant Professor of Clinical Medicine
Joel M. Wittles, MD

Joel M. Wittles, MD

Associate Professor of Clinical Medicine
John M. Wo, MD

John M. Wo, MD

Douglas Rex Professor of Gastroenterology and Hepatology

Clinical Psychologist

Anne Mary K. Montero, PhD

Anne Mary K. Montero, PhD

Adjunct Assistant Professor of Medicine

Neurologist

John C. Kincaid, MD

John C. Kincaid, MD

Kenneth L. and Selma G. Earnest Professor of Neurology

GI Neuromuscular Pathologist

Muhammad T. Idrees, MBBS

Muhammad T. Idrees, MBBS

Associate Professor of Pathology & Laboratory Medicine

Medical and Molecular Genetics

Bryan E. Hainline, MD, PhD

Bryan E. Hainline, MD, PhD

Professor of Clinical Medical & Molecular Genetics

GI and Nuclear Radiologists

Mark Tann, MD

Mark Tann, MD

Associate Professor of Clinical Radiology & Imaging Sciences

Esophagus and Foregut Surgeons

Jennifer N. Choi, MD

Jennifer N. Choi, MD

Associate Professor of Clinical Surgery
Attila Nakeeb, MD

Attila Nakeeb, MD

Professor of Surgery
Don J. Selzer, BS,  MD,  MS

Don J. Selzer, BS, MD, MS

Associate Professor of Surgery

Colorectal Surgeons

Bruce W. Robb, MD

Bruce W. Robb, MD

Associate Professor of Clinical Surgery
Bryan K. Holcomb, MD

Bryan K. Holcomb, MD

Assistant Professor of Clinical Surgery

Urogynecologists

Bryan K. Holcomb, MD

Bryan K. Holcomb, MD

Assistant Professor of Clinical Surgery
Michael H. Heit, MD, PhD,  MD,  BS

Michael H. Heit, MD, PhD, MD, BS

Volunteer Clinical Associate Professor of Obstetrics & Gynecology

Research Collaborators

David Nelson, PhD
Department of Biology, Indiana University

Paul Herring, PhD
Department of Cellular & Integrative Physiology

Pedro Irazoqui, PhD
Weldon School of Biomedical Engineering, Purdue University

Matthew Ward, PhD
Adjunct Assistant Professor of Medicine, Indiana University