Jagmeet P Singh is an Associate Professor of Medicine at Massachusetts General Hospital, Harvard Medical School. He also serves as Director of the Cardiac Resynchronization Therapy Program and as a Cardiac Electrophysiologist in the Cardiac Arrhythmia Service at Massachusetts General Hospital Heart Center. Dr Singh’s research interests are in clinical cardiac electrophysiology, with an emphasis on device therapy for heart failure and atrial fibrillation. He is the principal investigator and a member of steering committees on several single- and multicentre research studies. Dr Singh has over 100 publications, including original research articles, clinical communications, textbook chapters and editorials.