Professor Stevenson is the Director of the Injury Prevention and Trauma Care Division at The George Institute for International Health and a Professor in the School of Public Health at The University of Sydney. Before these appointments, Mark was an Associate Professor in the School of Population Health and founding Director of the Injury Research Centre in the Faculty of Medicine and Dentistry at The University of Western Australia. Mark has also worked as an Associate Professor in the Department of Epidemiology & Biostatistics at Curtin University, Perth, Australia as an epidemiologist at the Centers for Disease Control and Prevention in Atlanta, USA, as well as spending time at the Harvard University School of Public Health.

Professor Stevenson is a strong advocate for road and child injury prevention and has worked on numerous national and international projects related to these areas. He has extensive research experience including investigations of mobile phone use and motor vehicle crash, childhood pedestrian injuries, alcohol related road traffic injury, as well as studies involving pediatric fire and burn related injuries. He is a member of the Australasian Trauma Society, on the editorial boards for a number of international journals, is Chair of the New South Wales (Sydney) Chapter of the Australasian College of Road Safety and is a member of the Technical Advisory Group for the international not-for-profit Alliance for Safe Children.