Located on Dixie Highway, the MHP Radiation Oncology Institute serves Clarkston-area patients with radiation therapy for a variety and range of cancers and stages. From the initial consultation through recovery, we treat patients, not a disease. Our integrated care teams work with patients and the doctors they know best ? their primary care physicians and referring specialists ? informed about all treatments, advancements and care decisions. 21st Century Oncology, a physician-led company headquartered in Fort Myers, Florida operates MHP Radiation Oncology Institute along with over 180 radiation therapy cancer clinics across many U.S. states.