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Testimonials & Reviews

Brendan Sullivan, MD, FACC

Board Certified in Internal Medicine, Board Certified in Cardiology & Board Certified in Nuclear Cardiology located in Clifton, NJ & Ridgewood, NJ

4.92/5 Star Rating
860 total reviews

Dr. Brendan Sullivan always appreciates feedback from his valued patients. To date, we’re thrilled to have collected 860 reviews with an average rating of 4.92 out of 5 stars. Please read what others are saying about Dr. Brendan Sullivan below, and as always, we would love to collect your feedback.

Diane Y.
5/5 Star Rating
Submitted 11/10/22
Front office was pleasant, Thorough and efficient. Girls In the office were professional. Dr was thorough, as usual.
Susan G.
5/5 Star Rating
Submitted 11/10/22
I can always depend on great service, kind associates working in the office and Dr. Sullivan very knowledgeable!
Arlene S.
5/5 Star Rating
Submitted 11/09/22
dr Sullivan listens well to any concerns or problems, follows thru and genuinely us a caring dr. Jessica his nurse and office staff are the best too. Always helpful.
George H.
5/5 Star Rating
Submitted 11/09/22
Great as always. Top notch and professional
Gary B.
5/5 Star Rating
Submitted 11/09/22
Take the time and listens
Donna S.
5/5 Star Rating
Submitted 11/07/22
Always listens and does whatever it takes to care for me
Lillian M.
5/5 Star Rating
Submitted 11/06/22
Very professional
Anthony F.
5/5 Star Rating
Submitted 11/03/22
Very courteous staff. Dr. is extremely thorough and knowledgeable.
Jose L.
5/5 Star Rating
Submitted 11/03/22
Wonderful dr and staff. Lisa the receptionist is such a wonderful person.
Gerald S.
5/5 Star Rating
Submitted 11/03/22
Very professional and easy to talk to Great front office staff !
Josephine C.
5/5 Star Rating
Submitted 11/02/22
Great staff. On time. Really professional.
Doreen J.
5/5 Star Rating
Submitted 10/31/22
Hes the best!
James S.
5/5 Star Rating
Submitted 10/29/22
Excellent and I got my 1st flu shot.
James D.
5/5 Star Rating
Submitted 10/28/22
Very clean office. Dr. Sullivan takes his time with you, answers questions. Staff is very polite. Would highly recommend.
Donata C.
5/5 Star Rating
Submitted 10/26/22
Excellent
Francis L.
5/5 Star Rating
Submitted 10/22/22
Dr Sullivan is very knowledgeable and takes time to explain everything going on with your body.
Mirla D.
5/5 Star Rating
Submitted 10/21/22
Thank you Dr. Brendan Sullivan for your kind and thoughtful concern in regard to my health and providing me with excellent medical care. I am most grateful for your kindness whenever I see you Dr. Brendan Sullivan, MD, FACC Thank you so much! Gratefully yours, Your patient Ms. Mirla E. Del Rosario, R. N. (Retired).❤️
Thomas M.
5/5 Star Rating
Submitted 10/19/22
Always top notch
Frances H.
5/5 Star Rating
Submitted 10/19/22
Excellent, the best
Helga B.
5/5 Star Rating
Submitted 10/17/22
The office was very nice and the staff was friendly and attentive. The doctor was on time with the appointment