Dr. Forbes joined the staff of Mayo Clinic in 1977 and is a professor of radiology in Mayo Medical School. At Mayo he has served as chair of the Department of Radiology, chair of the Executive Board of Mayo Clinic Rochester, member of the Board of Governors and Board of Trustees of Mayo Clinic, CEO of Franciscan Skemp Healthcare of Mayo Health System, and medical director of Government Relations and Public Affairs. 

Dr. Forbes currently serves as medical director for Mayo Clinic Imaging Solutions, the business unit within Mayo Clinic’s diversified activities. He is past president and gold medalist of the American Society of Neuroradiology, past first vice president of the Radiological Society of North America, and fellow of the American College of Radiology. He served as a trustee for the American Board of Radiology Board from 2003 to 2011, and he joined the American Board of Radiology Foundation in 2008.