Dr. Gray is a surgical oncologist and Co-director of the Breast Clinic at Mayo Clinic’s Arizona campus and serves as Co-chair of the Breast Disease Group for all of Mayo Clinic. His areas of specialized clinical care and research include breast cancer prevention and treatment, retroperitoneal sarcoma, melanoma and surgical oncology. Dr. Gray received his medical degree from the College of Human Medicine at Michigan State University. Mayo Clinic’s Arizona campus is ranked the #1 hospital in Arizona according to U.S. News & World Report. The Mayo Clinic Cancer Center is designated by the National Cancer Institute as a comprehensive cancer center, and is the only NCI-designated comprehensive cancer center with three sites.