Dermot received his undergraduate education at NUI Galway. Postgraduate training was in Ireland and UK with a fellowship in Boston MA. he is Adj Clin Professor of Surgery at Limerick University Medical School and Surgical Tutor at Midlands Regional Hospital Tullamore.His surgical interests include laparoscopy, promoting excellence in hernia surgery, the introduction of a hernia registry and the encouragement of further collaboration between surgeons with an interest in hernia prevention and treatment. He has published on hernia and laparoscopy amongst others. He is the first Irish representative on the BHS board.