Ong, James J, M.D.
Cardiology

Heart Rhythm Specialists of Southern California

18372 Clark St
Tarzana CA 91356
Phone: 818-342-5377
Fax: (818) 996-9378
Cardiac Arrhythmia & Conduction Disorders, Electrocardiogram, Electrophysiology Study, Heart Failure, ICD Implant, Intracardiac Catheter Ablation, Other Electrophysiology Procedure.....