Board Certified in Cardiology,Cardiology Consultation, Cardiac Catheterization, Cardiac Nuclear Imaging, Coronary Angioplasty, Echocardiography, Carotid & Peripheral Stenting Thomas Bartzokis, Debra Becker, Mark Rubenstein, Stephen Servoss, Barry Merrill An experienced single specialty group that has grown to become one of the region's leaders in diagnosis,treatment and prevention of cardiovascular diseases. With five full-time Cardiologists, four invasive and one non-invasive, as well as a Physician's Assistant, our group has been providing care to the South Florida community since 1991.