At Avera Cancer Institute in Pierre, SD, you’ll find the highest quality of cancer care through prevention and early detection, evidence-based therapies and a multidisciplinary approach guided by the philosophy of healing the whole person. In Pierre, Avera Cancer Institute services are offered through Avera St. Mary’s Hospital. The Helmsley Center, a new state-of-the-art facility, will bring comprehensive cancer services under one roof including radiation therapy with enhanced imaging and precise beams of radiation to destroy cancer cells.