Dr. McCrea is Executive Director of the ProHealth Care Neuroscience Center in Milwaukee, Wisconsin.  He is a board-certified clinical neuropsychologist and has been head of the Neuropsychology Service at Waukesha Memorial Hospital since 1996.  He is also Associate Adjunct Professor of Neurology, Medical College of Wisconsin, Milwaukee and Adjunct Clinical Associate Professor, Department of Psychology, University of Wisconsin-Milwaukee.  Dr. McCrea has been an active researcher in the neurosciences, with numerous scientific publications, book chapters, and national and international lectures on the topic of traumatic brain injury.