He qualified in University College Cork in 1980 and obtained FRCSI in 1984. He was awarded MCH, by Thesis, University College Cork in 1989.He established the peritoneal malignancy programme in Basingstoke, now the largest in the world, and is the Lead Clinician for the English Significant Polyp Early Colorectal Cancer (SPECC) program. He is an executive and founder member of PSOGI (Peritoneal Surface Oncology Group International). He is President in Waiting of the Association of Coloproctology of GB and Ireland (President 2018). He is Honorary Professor of Surgery, National University of Singapore and Aarhuis University Denmark.