Radiation Oncology Associates, P.C. is a professional corporation incorporated in Virginia. It was founded in 1977 by John G. Maier, MD, PhD. Dr. Maier had a distinguished career at Walter Reed Army Hospital, where he became one of the world’s foremost experts in cancer of the testis. After retiring from the Army, he accepted a position as Chairman of the Department of Radiation Oncology at George Washington University Hospital. In 1977, he agreed to come to Fairfax Hospital as its first radiation oncologist and assemble a group of associates. He set the high standards that continue to guide the group.