MARC B GAINOR, D.M.D.

Google review (Gregory Weithman): After having been a patient of Dr. Gainor's for over 25 years, I could not be happier with his enduring care, thoughtfulness, and professionalism. I truly feel fortunate for having such a wonderful dentist. With gratitude!

Dec 12, 2025

Google review (Shawn Hoglund): I've been seeing Dr. Gainor for over a decade. His professionalism, knowledge, and unwavering quality in his craftmanship are the reasons there is no other dentist I'd want to be working with.

Jan 7, 2026

Google review (Stephen Harvey): My experience with Dr. Gainor and his team for all my dental work (for many years) has always been excellent. I highly recommend him if you have a dental issue.

Dec 15, 2025

Google review (Melissa Roberts): He is the best dentist in NYC! Dr. Gainor is top-notch at what he does and is a true professional. Before I met Dr. Gainor, I was petrified of the dentist because of my prior dental experiences. Dr. Gainor and his staff are warm and compassionate and make you feel right at home. Dr. Gainor is extremely good at dentistry and a perfectionist at what he does. He truly does incredible dentistry and makes your teeth look their very best. His office is clean and neat. Their covid-19 protocol and protections are top notch and you will be in good hands in his office where safety comes first. I highly recommend Dr. Gainor to anyone looking for a highly skilled, thorough, honest and kind dentist.

Sep 17, 2020

Google review (Kaoru Kumatani): Dr. Gainor is an exceptional dentist who demonstrates unparalleled expertise in handling complex dental issues. I have been going to him for 20 years. His commitment to providing the best care is clear in his thorough evaluations and meticulous treatment plans. His dedication to staying current with advancements in dentistry is reassuring because you know you will be getting the best possible care. I highly recommended him for anyone seeking a dentist who excels in managing difficult dental issues with skill and compassion.

Apr 12, 2024