The reviews listed below were collected independently of The Heart House through rater8. Each review represents an authentic and verified patient experience.
Great first visit.
(2 weeks ago)
Mar-2026
Very caring and professional doctor.
(2 weeks ago)
Mar-2026
Very good nice and very understanding
(1 month ago)
Feb-2026
Excellent Doctor,
Very thorough with his explanations and answering any questions.
(1 month ago)
Jan-2026
John was very thorough, explained everything in language anyone could understand. Is down to earth and personable,
(2 months ago)
Jan-2026
Thank you
(2 months ago)
Jan-2026
Great office visit. Everyone there was helpful and friendly. Dr Costello explained everything to me and what needed to be done. I felt very comfortable there.
(3 months ago)
Dec-2025
Excellent patient care
(3 months ago)
Dec-2025
He is always going good info ,so you can make a educated decision. Very professional. Good doctor!
(4 months ago)
Nov-2025
Excellent bedside manner . Good communication skills.
Great first visit.
Very caring and professional doctor.
Very good nice and very understanding
Excellent Doctor, Very thorough with his explanations and answering any questions.
John was very thorough, explained everything in language anyone could understand. Is down to earth and personable,
Thank you
Great office visit. Everyone there was helpful and friendly. Dr Costello explained everything to me and what needed to be done. I felt very comfortable there.
Excellent patient care
He is always going good info ,so you can make a educated decision. Very professional. Good doctor!
Excellent bedside manner . Good communication skills.