Joseph is Head, Health Law and Ageing Research Unit at the Department of Forensic Medicine. He is also an Associate Director with Centre of Research Excellence in Patient Safety and an Adjunct Professor, Australian Centre for Evidence Based Aged Care at La Trobe University, Faculty of Health Sciences.

Joseph is the Clinical Director of Subacute Services at Ballarat Health and a practicing consultant physician in geriatric medicine with research interests in medico-legal death investigation, elder abuse and Dignity of Risk as well as quality of clinical care, performance measurement and patient safety. Joseph has a Fellowship of the Royal Australasian College of Physicians and a Fellowship in Australasian Faculty of Public Health Medicine.