2026 International Symposium of Gastrointestinal Oncology (ISGIO)

2026 International Symposium of Gastrointestinal Oncology (ISGIO) Speakers

Click on any faculty member’s name or photo to view their full affiliation and session participation details.

Co-Chairs

Tanios Bekaii-Saab, MD

David F. and Margaret T. Grohne Professor of Novel Therapeutics for Cancer Research

Mayo Clinic in Arizona

Eileen M. O’Reilly, MD, FASCO

Professor of Medicine Winthrop Rockefeller Endowed Chair in Medical Oncology

Memorial Sloan Kettering Cancer Center

Session Leaders

Kristen Ciombor, MD, MSCI

Associate Professor of Medicine, Division of Hematology and Oncology

Vanderbilt University Medical Center

Thorvardur R. Halfdanarson, MD

Professor of Oncology

Mayo Clinic

James J. Harding, MD

Associate Attending and Member

Memorial Sloan Kettering Cancer Center

Christopher Lieu, MD

Professor of Medicine

University of Colorado Cancer Center

Manish A. Shah, MD, FASCO

Professor of Medicine

Weill Cornell Medicine

Faculty

Anthony El-Khoueiry, MD

Associate Director for Clinical Research

USC Norris Comprehensive Cancer Center

Bassel F. El-Rayes, MD

Professor

UC San Diego Health

William A. Hall, MD

Professor and Chair

Medical College of Wisconsin

Richard Kim, MD

Professor

Moffitt Cancer Center

Sunnie Kim, MD

Associate Professor

University of Colorado Cancer Center

Paula Marincola Smith, MD, PhD

Assistant Professor of Surgery, Department of Colon & Rectal Surgery

University of Texas MD Anderson Cancer Center

Nipun B. Merchant, MD, FACS

Professor and Alan Livingstone Endowed Chair in Surgical Oncology

Sylvester Comprehensive Cancer Center

Wungki Park, MD, MS

Assistant Professor

Weill Cornell Medical College

Diane Reidy-Lagunes, MD

Professor of Medicine

Duke University Health System / Duke Cancer Institute

Erika Ruiz-Garcia, MD, MSc, FASCO

Professor, Department of Gastrointestinal Medical Oncology

National Cancer Institute

Nina Sanford, MD

Chief of Gastrointestinal Radiation

UT Southwestern

John H. Strickler, MD

Professor of Medicine, Division of Medical Oncology

Duke Cancer Institute

Beau Toskich, MD

Professor of Radiology

Director of Interventional Oncology and Research, Division of Interventional Radiology

Pedro Luiz Serrano Uson Junior, MD

Leader of Translational Research, Center of Multiomics

Center for Personalized Medicine, Hospital Israelita Albert Einstein

Christina S. Wu, MD, MB, BCh

Professor of Medicine

Mayo Clinic

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