After graduating from Medicine at Monash University in 1983, Dr Clayton Thomas developed a particular clinical interest in the area of Rehabilitation and Pain Medicine.
In 1993 Dr Thomas was awarded a Churchill Fellowship by the Winston Churchill Memorial Trust, in order to develop a predictive model for back injury to promote high quality rehabilitation with a durable outcome (USA, UK).
Dr Thomas held the position of Acting Director of the Rehabilitation Unit, Professorial Unit at the University of Melbourne, for over three years. During his tenure Dr Thomas developed a comprehensive pain clinic at the Royal Melbourne Hospital, which remains a leading pain service within Victoria.
In 2001, Dr Thomas was granted Fellowship of the Faculty of Pain Medicine (FFPMANZCA) Australian & New Zealand College of Anaesthetists. This was through a Grandfather Clause, in recognition of his expertise and contribution in the area of pain medicine.