The Authority's Executive consists of the Chief Executive Officer, the National Medical Director and the Chief Financial Officer.
Acting Chief Executive Officer
Ms Elizabeth Cain
National Medical Director
Dr Gerry O'Callaghan MB Bch BAO FCICM FICA

Dr Gerry O'Callaghan is the National Medical Director of the Organ and Tissue Authority. Dr O'Callaghan continues to practice as a Senior Consultant, Intensive Care Medicine, at Flinders Medical Centre in Adelaide. He is a member of the Australian and New Zealand Intensive Care Society (ANZICS) Brain Death and Organ Donation Committee and was chair of the Advisory Group to the National Health and Medical Research Council's (NHMRC) National Organ Donation Collaborative. Previously, Dr O'Callaghan has been a member of the National Clinical Taskforce on Organ and Tissue Donation (2007-08), and a member of the NHMRC Working Party on Ethical Guidelines on Organ and Tissue Donation for Transplantation.
Dr O'Callaghan graduated from the Royal College of Surgeons in Ireland following which he undertook post-graduate training in anaesthesia in Ireland and the UK. He subsequently trained in Intensive Care Medicine in Australia, gaining fellowship of the Joint Faculty in 1997. Dr O'Callaghan's impressive working history includes appointments in Ireland, the UK, Israel and Australia over a period of 20 years. Dr O'Callaghan became interested in the challenges of facilitating organ donation and the interface with transplantation medicine while working in the Institute of Liver Studies, Kings College Hospital, London.
Dr O'Callaghan was appointed a member of the Advisory Council to the Authority, but has taken a leave of absence from his position during his term as National Medical Director.
Acting Chief Financial Officer
Ms Judy Harrison
Acting General Manager
Ms Elizabeth Flynn