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Dr. Robert Hesselgesser is a board-certified UCI Health radiation oncologist.
He earned his medical degreed at the New York Medical College in Valhalla, N.Y. He completed an internship in internal medicine at Los Angeles County-USC Medical Center, where he also completed a residency in radiation oncology.
Hesselgesser sees patients at the UCI Health Chao Family Comprehensive Cancer Center in Orange and Fountain Valley.