Call 631-269-6206
Here is what other patients are saying about us....
Just a quick note to let you know how great my most recent office visit was. As a Doctor myself you would expect me not to be nervous about going to the dentist. But a a bad visit from a previous dentist left me fearful. Your care, chairside manner and terrific technique made for a truly wonderful experience.

Thank You,
Dr. Don

Dr. Gentile Rocks! I've been terrified of dentists my whole life until I became a patient of Dr. Gentile's. I trust dentists again and him 100%.

Victoria G

Thank you for the opportunity to work with you in your beautiful office a few weeks ago. It was a pleasure to treat patients in a low stress, tidy and clean environment. I enjoyed working with your newer technology. The patients seemed very much at home and enjoyed their dental visits. They seemed more than willing to listen to home care and treatment strategies from the knowledge and experience that your office had to offer.

You must be very proud to have achieved what many offices struggle to have. You are an asset as a healthcare service provider to the Kings Park Community. I wish you all the best in your patient treatment and further practice development endeavors.

Most Sincerely,
Dental Hygienist

Friendly, talented, and the right solution the first time for my sensitive teeth. I tried other dentists near home in NJ and had procedures that didn't work. Dr Gentile is near my Moms home, so for years I've driven to LI. My hygienist and the office staff is great too.

Kathy C

Thank you so much for all that you did and continue to do...

Denise R

Thank you Dr. John for coming to our school and showing us how to keep our teeth healthy.

St. Lukes Preschool

Small dentist office in the heart of Kings Park. Been coming here for years. Premium service and super friendly staff.

Matthew B

I just wanted to take the time to thank you for your generous donation to my sisters fundraiser. With your help we were able to raise a lot of money. Your kindness wont be forgotten.

Christine C

Dr Gentile, the name says it all; gentle dentistry with a caring touch.


I must commend Dr. Gentile on the superb quality his practice exhibits! From the moment you enter the office, you are greeted with a smile and a welcome. His staff could not be more accommodating. His Dental Hygenist is both gentle and efficient. His assistants are professionals in the true sense of the word. Dr. John knows his way around the oral cavity and delivers first class treatment and results. Although I live 20 miles from Kings Park, my positive experiences in his talented hands are worth the effort.

Michael K

I'm chewing without pain for the first time in years. Thank You!


Highly recommend this practice. Dr gentile is very kind, and gentile especially with my kids. Tina is an excellent hygienist, and thorough with her cleanings. Danielle is amazing with Invisalign check ups.

Kiera K

I am very happy with Dr. Gentile and his staff. The office is immaculate and Dr. Gentile has all the latest technology in dentistry. Danielle, one of the dental hygienist, is very welcoming and friendly and does an excellent job. I was with my childhood dentist and made the switch to Dr. Gentile a few years ago and have been so happy that I switched.

Mary B

have been going to Dr Gentile for years. He is awesome! He has the latest training and equipment. He does so much more than a regular dentist. His staff is super nice and they make you feel comfortable. The office is always clean.

Nancy M

I want to say that Dr Gentile is the best dentist I ever had, and I'm 71 years old. He does EXCELLENT work. The staff is second to none. They treat you as if you are one of the family. I definitely would recommend him.

Stephen W

My whole family and I go to Dr. Gentile. He is a wonderful dentist and I have referred many people to his office. Anytime anyone asks for a dentist we tell them about our great experiences at your office and they have thanked us for the recommendation. It makes me happy that my kids love going to the dentist also.

Denis F

Great dentist. Friendly staff. Quick and painless appointment.

Suki T

Friendly staff. Clean office and never have to wait. Great with children also.

Tracy O

I love Dr Gentile office, best dentist we have ever been to . The office staff is always so friendly and you never have a long wait, best hygienists at this office, everyone at front desk always greets you with a smile . My whole family goes here.

Laurie F

I’ve been going there for almost 10 years and I will always be going there. There staff is so friendly and Dr.Gentile is kind. They love to talk to you. If you have a problem the office staff will fix it right away. He cleans your teeth so good and makes them really white. The offices are very clean.

Dylan F

I must say Dr. Gentile is very professional and friendly. My dental experience was pleasant and the work he does came out beautiful. I have had extensive dental work over the years from other dentists and would highly recommend Dr. Gentile. His staff is very friendly and accommodating. The Hygienists do such a fantastic job that I look forward to go back to get my teeth cleaned. I must mention how clean the office is. That is very important me. Wonderful experience.

Joanne M

Contact Us

We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form below.


We combine experience with the latest in dental technology to deliver the best patient experience possible.