Dr Ma is a founding member of the Alliance Anaesthetics group, and graduated from Sydney University Medical School in 1989. He trained as a specialist anaesthetist in Sydney, through both St George and Royal North Shore Hospital, and has experience in both anaesthesia for liver and major head and neck surgery. Dr Ma has a keen interest in teaching and is a previous Supervisor of Training for the College of Anaesthetists. He now works in private practice with appointments to St George Public and Private, Hurstville, Kareena and Sydney Private Hospitals. His areas of expertise are anaesthesia for obstetrics, orthopaedic and trauma surgery, urology, and ear, nose and throat surgery.