Professor of Radiation Oncology in the the Division of Radiation & Cancer Biology, Department of Radiation Oncology. He was awarded an American Cancer Society Junior Faculty Research Award and the Michael Fry Award from the Radiation Research Society for his outstanding contributions on understanding the molecular mechanisms of resistance promoted by the tumor microenvironment. Additionally, he was the recipient of the 2013 ASTRO Gold Medal. In 2015, he was awarded an NIH R35 Outstanding Investigator Award and was inducted into the National Academy of Medicine. He co-authored the sixth & seventh editions of the textbook, “Radiation Biology for the Radiologist,” with Professor Eric Hall from Columbia. In addition, he is currently the “Jack, Lulu and Sam Willson Professor in Cancer Biology” in the Stanford University School of Medicine.