He has been a leader in the field of robotic coronary artery bypass and hybrid coronary revascularization and has developed the program at Emory into one of the largest in the country. His other primary interest is in mitral valve surgery, specifically robotic mitral valve surgery. He has an NIH-funded grant in stroke research aimed at reducing stroke after cardiac surgery. He serves as the Associate Program Director for the Integrated Cardiothoracic Surgery Residency Program and is the Scientific Director of the Cardiothoracic Center for Clinical Research.