Greg is a Christchurch Obstetrician Gynaecologist in public and private practice. He is an Otago graduate and after his fellowship he trained in Adelaide as a sub-specialist in Reproductive Endocrinology and Infertility. He has held academic roles in Adelaide and Christchurch, worked as a Medical Director of IVF and Infertility services in Australia and New Zealand and is an active member of the RANZCOG REI committee.