Dr. Rabinowitz was one of the first three cardiologists in San Antonio to be trained in angioplasty, and has witnessed recent advances in technology with great appreciation. "When we first started doing angioplasty, there were no guidewires - just balloons. Now there are wires as thin as ninethousandths of an inch in diameter". Likening the improvements to the difference between a biplane and a Lear jet, Dr. Rabinowitz explains how patients who previously could only be treated with open heart surgery are now are now benefitting from coronary stenting procedures thanks to technological advances. These advances help Dr. Rabinowitz treat not only those with blocked coronary arteries, but also those with poor circulation to the arteries of the legs, kidneys, carotids and other peripheral sites. He has been trained in the very latest interventional techniques, including vascular stenting of legs, arms, kidneys, carotids, laser and rotational atherectomy, intravascular ultrasound, intracardiac ultrasound, and percutaneous repair of patent foramen ovale and atrial septal defects.

Dr. Rabinowitz has been in private practice in San Antonio and served as a clinical assistant professor at the University of Texas Health Science Center since 1981. He is board certified in internal medicine, cardiovascular diseases and interventional cardiology and has worked as a clinical research investigator with several of the most well respected medical device and pharmaceutical companies for nearly a decade. Dr. Rabinowitz has served as chief of cardiology at St. Luke's and San Antonio Regional hospitals, chief of staff at St. Luke's, and director of the Cardiac Cath Lab at Methodist. He also serves as chairman of the board for the TexSAn Heart Hospital. Dr. Rabinowitz has been elected a fellow with the Clinical Council of the American Heart Association, the American College of Cardiology, the Society of Cardiac Angiographers and Interventionalists, and the American College of Physicians. He has been honored by being chosen as the top cardiologist in San Antonio by "A San Antonio Nurses' Guide for Physicians" and as a top physician in his field by other physicians as published in all of the national editions of "A Guide to Top Doctors." A survey conducted by Texas Month magazine selected Dr. Rabinowitz as a "Texas Super Doctor." And he was named in USA Today as one of the most influential physicians in America.