Dr. Mayer is a pioneer in the rehabilitation of people with traumatic brain injury. He is internationally known as an advocate for a functional approach to rehabilitation. He received the Sheldon Berrol Clinical Services Award from the National Head Injury Foundation for outstanding contributions to improving quality care, professional training and education in the field of head injury rehabilitation. He also serves as professor emeritus of physical medicine and rehabilitation at Temple University School of Medicine.Dr. Mayer has been recognized by Philadelphia magazine as one of the region's "Top Docs" and received the Pennsylvania Association of Rehabilitation Facilities award for excellence in rehabilitation.Dr. Mayer has published and lectured widely and continues to work in research related to brain injury rehabilitation. He is the editor of the Journal of Head Trauma Rehabilitation.