Damien studied medicine at St Andrews University and Manchester Medical School qualifying in 1984. He worked as a House Officer for a year at Salford Royal and Hope Hospitals and then spent a further two years on a medical rotation at Blackburn Royal Infirmary and Queens Park Hospital. It was during this time he fell in love with East Lancashire and always vowed to return.
After twelve months experience as a trainee in General Practice in Bury he moved back into hospital medicine specialising in gastroenterology at South Manchester University Hospital. From there he was appointed to a registrar post in the internationally renowned Gastroenterology Unit, The General Infirmary at Leeds, under the tutelage of Professor Anthony Axon, where he subsequently became a research registrar.
In 1993 he was appointed Senior Registrar and worked with Dr Adrian Manning (international expert in irritable bowel syndrome) at Bradford Royal Infirmary. The following year Damien was delighted to return to Blackburn as a Consultant Physician with an interest in Gastroenterology.
He is Director of Medical Undergraduate Education at East Lancashire Hospitals NHS Trust. He has also been Divisional Director (Medicine). In 2008 he was awarded a Bronze Award for his contribution to the NHS. He is an Associate Clinical Professor at the American University of the Caribbean, Honorary Clinical Lecturer in Medicine at the University of Manchester and Honorary Senior Lecturer at the University of Salford.