John Costello, D.O.

John Costello, D.O. is a Cardiology specialist practicing in Philadelphia, PA, with extensive clinical expertise in congenital heart disease, structural cardiac anomalies, and advanced heart support therapies including mechanical circulatory devices. With 14 years of clinical experience and over 218 peer-reviewed publications, Dr. Costello has contributed significantly to the field through research on cardiac surgical outcomes, resuscitation protocols, and innovative approaches to complex heart