Dr. Mari is the Ruvo Family Chair & Director of the Parkinson's Disease & Movement Disorders Program at the Cleveland Clinic Lou Ruvo Center for Brain Health and Adjunct Associate Professor of Neurology at Johns Hopkins University. He is the Chair of the Parkinson Study Group's Motor Working Group, and he is an Associate Editor of the Parkinsonism & Related Disorders journal. He previously served as full-time faculty at Johns Hopkins University School of Medicine and Director of the Movement Disorder Clinical Fellowship Training Program, the DBS Center, the Parkinson's Foundation Center of Excellence, the Dystonia Center, and Parkinson's & Movement Disorder Center. Dr. Mari has since served as Director of the CurePSP Center of Care, PI and co-PI with the Lewy Body Disease Association Research Center of Care, and Co-Director of the Cleveland Clinic Parkinson's Foundation Center of Excellence. He has authored and co-authored several book chapters and patents, as well as over 100 published abstracts and 120 peer-reviewed papers, and he has received uninterrupted external funding for nearly two decades while serving as PI or AI on many clinical studies in the area of Parkinson's disease and other movement disorders.