Dr. DeNittis treats a variety of cancers, with a focus on cancers of the colon, rectum, lung, prostate, and skin as well as gynecologic and noncolorectal GI cancers and brain metastases. He has significant expertise in the use of advanced LINAC-based radiation therapy techniques and brachytherapy. Dr. DeNittis is actively involved in cancer clinical research and is the NRG Oncology principal investigator for Main Line Health. A graduate of University of Medicine and Dentistry of New Jersey, Dr. DeNittis completed a radiation oncology residency at Hospital of the University of Pennsylvania.