Dr Griffin has been a cardiologist at the Cleveland Clinic in Cleveland, Ohio since 1993. Cleveland Clinic has been voted the #1 hospital for cardiovascular care for the last 18 years by US News and World Report. Dr Griffin is Head, Section of Cardiovascular Imaging in the Heart and Vascular Institute, Cleveland Clinic since 2012 and Physician Director of Development, Heart and Vascular Institute, Cleveland Clinic since 2004. Prior to this, he was Director of the Cardiovascular Disease Training Program since 1994. From 2003-6, he was Vice-Chairman, Department of Cardiovascular Medicine, Cleveland Clinic and has held the John and Rosemary Brown Endowed Chair in Cardiovascular Medicine at Cleveland Clinic since 2007.
Dr Griffin graduated in medicine in 1979 from University College Galway, National University of Ireland. After completing medical training in Galway and Dublin, he trained at Guy's Hospital, London and at Cedars-Sinai Medical Center, Los Angeles. He was a clinical fellow in cardiology at Boston University Medical Center from 1987-9 and at the Massachusetts General Hospital, Boston from 1989-91. From 1991-93, he was on faculty at Dartmouth Medical School.
Dr Griffin is the author of more than 130 publications in cardiology and has edited 3 cardiology textbooks. The Manual of Cardiovascular Medicine that he edits is in its 4th edition and has been translated into Chinese, Spanish, Greek and Portuguese. He is the US Associate Editor for Heart, the journal of the British Cardiac Society. He received the Stoke's Medal of the Irish Cardiac Society in 2002 and was the recipient of the Medtronic Award for Medicine, Nursing and Health Sciences from the National University of Ireland Galway in 2011.