I graduated from the Sydney University in 1974, completed specialty training in endocrinology in 1984, undertook a Doctor of Medicine degree at the Garvan Institute in 1984 followed by post-doctoral studies at the University of Virginia 1984-1986. I returned to the Garvan Institute in 1987 as Director of the Hormone Assay Service, was appointed as staff specialist in the Department of Endocrinology, St. Vincents Hospital in 1990, as Department Head in 1996. I established the Pituitary Research Unit within the Metabolic Program at the Garvan Institute. In 2010, I took a the position in Brisbane as Research Director, Princess Alexandra Hospital and Pre eminent Medical Officer, Queensland Health. On retirement in 2018. I returned to Sydney, where I hold appointments as Honorary Professor at the UNSW, Emeritus Fellow at the Garvan Institute and Honorary Medical Officer at St. Vincent's Hospital.
I served as President of the Endocrine Society of Australia (2000), the international Growth Hormone Research Society (2006) and the Pituitary Society (2014). I served on the Nominations Committee of the British Endocrine Society, Governance Task Force and Nominations Committee of the US Endocrine Society. I am Program Chair of the 2022 International Endocrine Congress. I was admitted as a Fellow of the Australian Academy of Health and medical Science in 2016