Professor Newton is an Adjunct Clinical Professor at Monash University, a consultant psychiatrist in Youth Mental Health at Peninsula Health and most recently was the clinician member of the Independent Review Panel of the Compulsory Treatment Criteria of the Mental Health and Wellbeing Act. He is the recent past Clinical Director of the Peninsula Health Mental Health Service and has a private practice specialising in eating disorders. He is on the Board of Wellways, and Mental Health Vic.