Dr. John F. Norris, an electrophysiologist (cardiologist near you with specialized training in the diagnosis and treatment of heart rhythm disorders), pioneered cardiac cathether ablation for atrial fibrillation and biventricular cardioverter-defibrillator implantation in Pinellas County, FL. Founder of Pinellas Arrhythmia Associates, he serves the communities of Clearwater - St. Pete, FL providing patients the full array of modern electrophysiology diagnostics, treatments and technologies.