He leads BIDMC’s efforts to monitor the outcomes of cardiovascular care and to improve the quality of that care. He is active in the leadership of the National Cardiovascular Data Registry and the Society for Cardiovascular Angiography and Interventions. His research interests include methodological issues in the design, management and analyses of clinical trials; cost-effectiveness of cardiac interventions; and assessment of outcomes of cardiovascular procedures (including use of large-scale, multicenter databases).