2500 Nesconset Hwy
Suite 19-B
Stony Brook, NY 11790

Mon: 10:00AM - 8:00PM

Tue: 10:00AM - 5:30PM

Wed: By appointment only

Thu: 10:00AM - 8:00PM

Fri: Closed

Sat: 9:00AM - 2:30PM

Sun: Closed

100.0% would refer friends and family to us

5 stars Customer since 2016

Right from the first phone call, Dr. Vassallo and his staff are awesome in relieving all my anxiety of coming to a dentist in the first place. So once I arrived at his office, the staff was awesome because they listen to your needs and they address all of my concerns in an easy to understand way. But once I met Dr. Vassallo, my only regret is that I wish I met him several years back. His attention to detail and careful approach to my teeth are exceptional to say the least. Other dentist I've met in the past pale in comparison to Dr. Vassallo!

5 stars Customer since 2017

Dr Vassallo doesn't make you wait, he's always on time. Also he solves the problems pretty fast, and combines different tasks on the same appointment to avoid multiple visits, so that's great.

5 stars Customer since 2017

Had my first visit to Dr Vassallos office for a cleaning. Friendly staff. Wonderful dental hygienist. Nice office. Dr Vassallo was easy to talk to and seemed knowledgeable. Would recommend.

5 stars Customer since 2017

Dr. Vassallo makes going to the dentist a breeze. He explains every step and treats you with the upmost care.

5 stars Customer since 2012


Made two appointments for cleaning and whitening

Would recommend to friends and family

5 stars Customer since 2014

Another excellent experience with doctor Vassallo. I wouldn't go anywhere else!

5 stars Customer since 2016

Dr Vassallo is great in allaying any fears about dental work. He has a wonderful manner with patients

and takes time to describe the procedure. He is upfront about the costs of planned work and lets you

know that he is interested in helping you maintain and improve your teeth. I highly recommend his


5 stars Customer since 2014

Melody was great. The cleaning was great. Hardly waited before I was seen.

5 stars Customer since 2012

Excellent quality care!!

5 stars Verified customer

Great doctor, Great staff. Clean, quick and efficient

Also in Stony Brook


Three Village Veterinary Hospital

5 stars 329 reviews

Doctors and nurses are always courteous and professional. Staff at the reception not so much. One person is pretty professional, the other seemed like she would rather be elsewhere. Another doggie/patient peed in the office and that staff person took several minutes to walk into another room to bring her a single tissue paper for the patient's mom to clean it up. This was a medium sized dog who peed, so 1 tissue was nothing. Plus, when you bring your pet to the vet, you have so many things going on, the last thing you need is trying to figure out how to clean the mess without any support from the staff. The pee stayed there, had splashed, there is not bathroom for people to wash their hands after... I was displeased by seeing this lack of care from the staff on this matter.
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