I lead an academic group researching innovations in service delivery, patient outcomes, and therapeutic interventions. I have led multi-centre pragmatic trials, used linked data from large data sets and undertaken quasi-experimental studies. As both a provider of routinely collected data as a consultant gastroenterologist, and a user for data linkage studies I have become concerned about both the quality and breadth of clinical data that is currently available for research and other purposes. In 2002 I founded a Health Informatics unit at the Royal College of Physicians where I explored these data quality issues relating to hospital patient records and episode statistics and led a programme of work to define evidence and consensus based standards for the clinical structure and content of patient records. These are now embedded in national policy, and currently being implemented. My work is now focused on improving clinical data provenance to enable the detailed phenotyping of common disorders, and thus facilitate the widespread application of precision medicine.
I am an honorary consultant gastroenterologist, Abertawe Bro Morgannwg University Health Board. I was the founding president of the Welsh Association for Gastroenterology from 2005-2008, and chair of the Society of Physicians in wales from 2011-2013. I led the establishment of Swansea University Postgraduate Medical School.