Dr. Jaffer is currently an Associate Professor of Medicine at Harvard Medical School and an Attending Interventional Cardiologist at Massachusetts General Hospital.  He is Director of Coronary Intervention and Director of the Chronic Total Occlusion (CTO) PCI Program at Massachusetts General Hospital. The MGH is a leading center for treating the most complex coronary blockages, such as CTO. Many patients, previously without options, have successfully underwent CTO PCI, and have experienced marked reductions in angina (chest pain) and shortness of breath.