J. Patrick Johnson, MD is a renowned neurosurgeon specializing in spinal disorders and has served as the Director of the Institute for Spinal Disorders at Cedars Sinai Medical Center since 2001 and previously as the Director of the UCLA Comprehensive Spine Center from 1993-2001. He now serves as the Director of Education and Co-Director of the Spine Stem Cell Research Program at Cedars Sinai.  He also serves as a Director for the California Association of Neurological Surgeons.