David is Professor of Medicine, Macarthur Clinical School, Western Sydney University; Director, Endocrinology Department, Campbelltown Hospital; Director, South Western Sydney Diabetes, Obesity, Metabolism Translational Research Unit (DOMTRU); Professorial Fellow, University of Melbourne and Visiting Professor, University of Örebro, Sweden.
He is a previous President of the Australasian Diabetes In Pregnancy Society (ADIPS) and in 2020, the first New Zealander to be awarded the American Diabetes Association Norbert Freinkel award for his Diabetes in Pregnancy research. In 2011 he was awarded the Royal Australasian College of Physicians Priscilla Kincaid-Smith award for his work relating to diabetes in the community. He has led several trials/studies in diabetes in pregnancy, diabetes prevention, diabetes management and diabetes epidemiology. He has over 300 publications including the first book on Integrated Diabetes Care.