John Costello, DO, FACC

Practice: The Heart House

Specialty: Cardiology, Cardiac Electrophysiology

Office locations: Haddon Heights, Vineland, Marlton, Sewell

Most recent review: 1 week ago Recent
4.9 out of 5
198 Ratings
83 Comments

Dr. John Costello, D.O., is a triple board-certified cardiologist in cardiovascular disease and internal medicine. Dr. Costello is board-certified in Electrophysiology. Dr. Costello joined The Heart House and Vascular Care in 2020. His focus is treating a multitude of heart rhythm disorders including atrial fibrillation, SVT, ventricular tachycardia and PVCs. His expertise includes minimally invasive catheter ablation for arrhythmia as well as device implantation for cardiac rhythm management and treatment of heart failure.

4.9 out of 5
198 Ratings
83 Comments

Dr. John Costello, D.O., is a triple board-certified cardiologist in cardiovascular disease and internal medicine. Dr. Costello is board-certified in Electrophysiology. Dr. Costello joined The Heart House and Vascular Care in 2020. His focus is treating a multitude of heart rhythm disorders including atrial fibrillation, SVT, ventricular tachycardia and PVCs. His expertise includes minimally invasive catheter ablation for arrhythmia as well as device implantation for cardiac rhythm management and treatment of heart failure.

The reviews listed below were collected independently of The Heart House through rater8. Each review represents an authentic and verified patient experience.

My experience with Dr Costello was positive when he implanted my pacemaker at Cooper over a year ago, but yesterday I was seen by a very kind technician who performed my echo Doppler. I rate her at 5 stars.

Rated 4 out of 5 stars
(1 week ago) Oct-2026

It was pleasant heart to heart visit. 🙂After meeting Dr Costello for the first time I felt at ease. His presence and grace I felt with confidence being I was on edge and scared . My condition to me was concerning and John gave me the reassurance he was the guy for the procedure. Looking forward placing my heart in his hands.

Rated 5 out of 5 stars
(3 weeks ago) Sep-2026

Dr. Costello was pleasant, extremely informative, and gave me total confidence in him from the start. I highly recommend him.

Rated 5 out of 5 stars
(3 weeks ago) Sep-2026

Friendly, informative, patient

Rated 5 out of 5 stars
(3 weeks ago) Sep-2026

Dr. Costello is great, very knowledgeable and I felt comfortable with him.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Wonderful. On point. Liked him alot.

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Great doctor!

Rated 5 out of 5 stars
(1 month ago) Aug-2026

Good

Rated 5 out of 5 stars
(1 month ago) Aug-2026

I was supposed to have a 10 week followup appointment from a surgical procedure. Instead had to wait 17 weeks only to find at the meeting I was seeing a physician's assistant who could not answer my questions. Should have been told before hand. I was not the only patient neither who expected to see the Dr only to be surprised.

Rated 2 out of 5 stars
(2 months ago) Aug-2026

I thought Dr.Jet was thorough and explained everything great! Very nice Doctor !

Rated 5 out of 5 stars
(2 months ago) Aug-2026
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