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Gastroenterology and Hepatology Faculty

Led by Mohammad Al-Haddad, MD, the faculty in the Division of Gastroenterology & Hepatology at IU School of Medicine regularly lecture at various national and international meetings. These practicing physicians lead exceptional education and training programs, including a fellowship and local CME programs throughout the year in the form of several ERCP and EUS courses, an annual GI Update course and an annual AASLD update. 

Professors of Medicine

Mohammad A. Al-Haddad, M.D.

Naga P. Chalasani Professor of Gastroenterology and Hepatology

Naga P. Chalasani, MD

David W. Crabb Professor of Gastroenterology and Hepatology

Evan L. Fogel, MD

Stuart Sherman Professor of Gastroenterology

Charles Kahi, MD

Professor of Medicine

Lee McHenry, MD

Professor of Medicine

John M. Wo, MD

Douglas Rex Professor of Gastroenterology and Hepatology

Professors of Clinical Medicine

Hala Fatima, M.D.

Professor of Clinical Medicine

Nabil F. Fayad, MD

Professor of Clinical Medicine

Samer Gawrieh, MD

Professor of Clinical Medicine

Thomas V. Nowak, MD

Professor of Clinical Medicine

Professor Emeritus of Medicine

David Crabb, MD

Professor Emeritus of Medicine

Douglas K. Rex, MD

Distinguished Professor Emeritus

Associate Professors of Medicine

Christen K. Dilly, MD, ME

Assistant Dean for Graduate Medical Education

Jeffrey J. Easler, MD

Associate Professor of Medicine

Craig Lammert, MD

Associate Professor of Medicine

Eric Orman, MD

Associate Professor of Medicine

Associate Professors of Clinical Medicine

Toyia N. James-Stevenson, MD

Associate Professor of Medicine Practice

Marco A. Lacerda, MD

Associate Professor of Clinical Medicine

Nicholas Rogers, MD

Associate Professor of Clinical Medicine

Sashi Sagi, M.D.

Associate Professor of Clinical Medicine

Robert M. Siwiec, MD

Associate Professor of Clinical Medicine

James L. Watkins, MD

Associate Professor of Clinical Medicine

Assistant Professors of Medicine

Archita Desai, MD

Assistant Professor of Medicine

Mark A. Gromski, MD

Associate Professor of Medicine

Jessica Maiers, PhD

Assistant Professor of Medicine

Jennifer Maratt, MD

Assistant Professor of Medicine

Lauren D. Nephew, MD

Assistant Professor of Medicine

Niharika Samala, M.D.

Assistant Professor of Medicine

Ashina Singh, MD

Assistant Professor of Medicine

Zhihong(Joe) Yang, PhD

Assistant Professor of Medicine

Assistant Professors of Clinical Medicine

Khaled H. Abdeljawad, M.D.

Assistant Professor of Clinical Medicine

Awais Ahmed, M.D.

Assistant Professor of Clinical Medicine

Zhibo An, MD, PhD

Assistant Professor of Clinical Medicine

Umer Bhatti, M.D.

Assistant Professor of Clinical Medicine

Ashley Gilmore, MD

Assistant Professor of Clinical Medicine

John Guardiola, MD

Assistant Professor of Clinical Medicine

John Holden, MD

Assistant Professor of Clinical Medicine

Rachel Holmes, PhD

Assistant Professor of Clinical Medicine

Sean Jones, EDS, PhD

Assistant Professor of Clinical Medicine

Hak Nam Kim, MD

Assistant Professor of Clinical Medicine

Satya Kurada, M.D.

Assistant Professor of Clinical Medicine

Smitha Marri, MD

Assistant Professor of Clinical Medicine

Anne Mary K. Montero, PhD

Associate Professor of Clinical Medicine

Ite Obaitan, M.D., MPH

Assistant Professor of Clinical Medicine

Anahli Patel, PsyD

Assistant Professor of Clinical Medicine

Akira Saito, MD

Assistant Professor of Clinical Medicine

Nasir Saleem, M.D.

Assistant Professor of Clinical Medicine

Margaret Sozio, MD

Assistant Professor of Clinical Medicine

John Christopher F. Tang, DO

Assistant Professor of Clinical Medicine

Megan J. Walker, MD

Assistant Professor of Clinical Medicine

Associate Research Professor of Medicine

Tiebing Liang, PhD

Associate Research Professor of Medicine

Assistant Research Professors of Medicine

Lixian Chen, PhD

Assistant Research Professor of Medicine

Nazmul Huda, PhD

Assistant Research Professor of Medicine

Konstantina Kyritsi, PhD

Assistant Research Professor of Medicine

Jing Ma, M.D., Ph.D.

Assistant Research Professor of Medicine

Keisaku Sato, PhD

Assistant Research Professor of Medicine

Eduardo Vilar, MD, PhD

Assistant Research Professor of Medicine

Tianhao Zhou, PhD

Assistant Research Professor of Medicine

Adjunct Assistant Professor

Matthew P. Ward, PhD

Adjunct Assistant Professor of Medicine