Always friendly, gentle care. Very prompt and on time with their appointments. I've only been there 3 times and I feel as though Dr. Koster already knows me and my personal issues. I don't feel like "just another patient" there.

Dr. Koster fully informed me about the procedure she was about to perform and took great care to keep it as pain free as possible. Her assistant Christine was also very reassuring and now almost three hours later I am still pain free

The staff and doctors are very professional and accommodating. I needed an urgent procedure and the whole staff worked together to get me in and made me comfortable and at ease. This practice is family dentistry at its finest. Thank you Dr. Johnnidis. Thank you, Locust Valley Dentist.

I had a filling today and Dr. Koster made it fast and painless. She is smart, kind and considerate. Highly recommend!

I have been with Dr.J and his team for 4 years, I highly recommend this practice. I am comfortable and in good hands with all staff. I always leave there feeling good.

Dr J. Is the best dentist I’ve ever had. Gentle and kind with a great sense of humor. Office staff is exceptional.

Outstanding experience from the initial checking with the staff continuing through any dental work. Extremely kind and professional. The whole team walks you through any questions you have whether it is medical or billing related.

Dr. Johnnidis and his staff are the best. I have a terrible fear of the dentist and his office makes me feel comfortable , they are professional and caring. Patty his assistant is amazing .

Dr Koster and her assistant Christina were kind, exacting, and wonderful. I love the results of Dr. Koster’s expertise!

The office staff is exceptional and Dr Schlesinger was very professional explained everything he was doing I highly recommend them .

My crown was completed today. As always Dr Koster made sure the fit and bite were perfect! She always has her patients needs in mind. And her assistant Chris is very pleasant and supportive as well.

A very thorough and professional cleaning by a warm and welcoming hygienist ! The entire staff is friendly and helpful and the environment is pleasant and relaxing.

I loved the relaxed atmosphere and staff very much, they care. Not only that but the Doctor was at the top of my list. No pain all gain with the best dental care ever. Thanks Peter

I love Locust Valley Dentists and can’t say enough good things about the entire team. From making your appointment with the girls at the desk to your cleaning, everyone is friendly and accommodating and Dr Koster is amazing. She remembers your name, asks about your family, and truly cares about her patients. Being there feels more like a social visit than a dreaded dentist appointment. The entire team makes you feel welcome and comfortable. It’s truly a pleasure going to see them.

My husband and I are beyond happy to have found Locust Valley Dentist group! We can't say enough about the treatment we have received, the wonderful staff, the top of the line equipment....on and on! On every level they are the BEST.