Prior to joining Public Health Wales, Tracey had been the Chief Executive of the Health Information and Quality Authority (HIQA) in the Republic of Ireland since 2006.
Tracey qualified as a doctor at Southampton University in 1990. Her career has included working clinically in emergency medicine, emergency care services and health system reform. She has worked in, and advised on, a variety of different health systems in different parts of the world.
In 2008, Tracey joined the Board of the International Society for Quality in Health Care (ISQua) and became its President in 2011 completing her Immediate Past President position in October 2015.