Dr. James Geller, MD
Pediatric Hematologist/Oncologist at Rady Children’s Hospital–San Diego and Professor of Pediatrics at the University of California San Diego
Dr. James Geller is a Professor of Pediatrics at Rady Children’s Hospital, University of California San Diego, having previously served for over two decades at Cincinnati Children’s Hospital Medical Center. His career is dedicated to advancing novel therapies for pediatric, adolescent, and young adult solid tumors through clinical care, translational research, and multidisciplinary team leadership. Throughout his career, Dr. Geller has established and led vital programs in liver and renal tumors, retinoblastoma, and cancer predisposition, while founding national registries and research consortia. Nationally and internationally, he holds prominent leadership roles within the Children’s Oncology Group (COG) and the International Society of Pediatric Oncology (SIOP)—including co-founding the HARMONICA renal tumor initiative and leading major clinical trials such as AHEP1531/PHITT—and serves as an Associate Editor for Pediatric Blood & Cancer.
“Dr. Geller gave our family hope at a time when we desperately needed it. His confidence in the care at Cincinnati Children’s and Dr. Tiao’s surgical expertise convinced us to bring Hannah to Cincinnati. His passion for his patients and determination to give them the best possible outcomes are truly remarkable. Hannah is here today because of him, and we will be forever grateful.”
— Kristen Grace, Mother of Hannah