Professor Tilyard graduated in 1980 and entered into General Practice in 1985. He became a member of the Royal New Zealand College of General Practitioners in 1990. He gained his Doctorate in Medicine Degree in 1995, was made a Fellow of the Royal New Zealand College of General Practitioners in 1996 and received a Distinguished Fellowship in 2006. He is currently a Professor of General Practice, at the Dunedin School of Medicine, University of Otago. His research interests are in general practice, health services utilisation, medical informatics, diabetes and chronic disease management. He has published over 100 papers in refereed journals.