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Senior Leadership


Richard Van Etten, MD, PhD
Principal Investigator, Director
Chao Family Endowed Director’s Chair in Cancer Research and Treatment

Marian Waterman, deputy director, Chao Family Comprehensive Cancer Center

Marian Waterman, PhD
Deputy Director & Associate Director for Basic Science

Dr. Susan O'Brien, Associate Director for Clinical Science, UC Irvine Chao Family Comprehensive Cancer Center

Susan O'Brien, MD
Medical Director of the Sue and Ralph Stern Center for Cancer Clinical Trials and Research
Chao Family Endowed Chair for Cancer Clinical Science


Lari Wenzel, PhD
Associate Director for Population Science & Cancer Control


Robert E. Bristow, MD, MBA
Associate Director for Cancer Health Disparities and Community Engagement


Edward Nelson, MD
Associate Director for Cancer Research Education and Training

Amy Barach

Amy Barach
Associate Director for Administration & Finance/CAO


Leonard Sender, MD
Liaison to Children's Hospital Orange County (CHOC)


Alessio Pigazzi, MD, PhD
Chief, Division of Colon and Rectal Surgery


Dan Cooper, MD
Director, Institute for Clinical and Translational Sciences


Frank L. Meyskens, MD
Director Emeritus


Hung Fan, PhD
Cancer Center Senior Advisor


Nancy Eagan, RN
Senior Director of Cancer Operations

Internal Contact

Brian McClendon, assistant director of administrative programs Brian McClendon
Assistant Director of Administrative Programs