Rhys has around 18 years working in the public health and epidemiology area analysing healthcare datasets.
After graduating with a BSc (Hons) in Maritime Environmental Science in 1999 he started working for the University of Wales College of Medicine and the National Public Health Service for Wales running and developing the All Wales Injuries Surveillance System (AWISS) and was heavily involved in the development of the subsequent Emergency Department Dataset (EDDS). While here he graduated, in 2002, with a Masters in Public Health (MPH).
In 2007 he moved to Cardiff Research Consortium, a health outcomes consultancy, as an epidemiologist analysing large healthcare datasets primarily on industry funded studies, while there he has worked on studies for such companies as Amgen, Astra Zeneca, BMS, F.Hoffman-La Roche, Genzyme, GSK, Janssen-Cilag, Pfizer, Sanofi-Aventis, and Sanofi-Pasteur.
He moved to the Swansea Centre for Health Economics (SCHE) in late 2011 where he continues working with pharmaceutical companies undertaking burden of disease and cost of disease studies, as well as risk modelling and survival analysis to support HTA submissions and market access strategies.
At Swansea University Rhys teaches epidemiology to both undergraduate and postgraduate students within the College of Human and Health Sciences.