Dr. Williams specializes in both Cardiac Surgery and Interventional Cardiology. He is the first practitioner in the United States to specialize in both fields. This special training provided him with a unique perspective on treating cardiovascular disease. Given he has training in surgical and catheter (or endovascular) skills he is able to provide an unbiased opinion on the most appropriate treatment. In special situations he can combine both fields into one procedure that is potentially more advantageous to the patient and less invasive. His main areas of focus include minimally invasive valve surgery and transcatheter valve repair or replacement. He also has an interest in hybrid therapy (combined bypass surgery and stenting) for treatment of coronary artery disease.