Patrick S. Antoun, MD, is a cardiologist at Ascension St. Vincent's in Jacksonville, FL. Dr. Antoun specializes in heart catheterization and minimally invasive heart care. He performs procedures to restore blood flow to the heart. When facing a new diagnosis or deciding on a heart care plan, Dr. Antoun is here for you. He performs interventional cardiology procedures to help prevent heart attack and stroke, including opening clogged coronary arteries (angioplasty with balloon or stent).