Family Dental Group of Jefferson Valley
2985 Navajo Road, Yorktown Heights, NY 10598

Joon-Yong Koh, DMD  General Dentist

Dr.Koh 8x10

Joon-Yong Koh, DMD is a general dentist skilled in various aspects of general dentistry including composite restorations, crown/bridge restorations, endodontics, partial/complete dentures, routine and surgical extractions as well as implant restorations and placement. Dr. Koh is a certified Invisalign® Provider and is also trained in laser dentistry and CEREC restoration.
I grew up in a close knit family, and I keep that feeling in my work, too. I’m a dentist for the whole family, and I really get to know my patients.” For Dr. Koh, dentistry is more than working on teeth. It is about taking time to listen to the patients’ needs and concerns so that he may deliver customized dental care. But more importantly, it is about building lasting relationships and helping patients achieve a lifetime of optimal oral health and healthy smiles.
Dr. Koh attended the University of Washington in Seattle, WA for his undergraduate studies and completed a Doctorate in Dental Medicine at University of Pittsburgh School of Dental Medicine in Pittsburgh, PA. Upon graduating from dental school, he completed a General Practice Residency at Montefiore Medical Center in Bronx, NY and later finished the Comprehensive Implant Program at Columbia University in New York City, NY.
Dr. Koh consistently takes continuing education courses and attends seminars to update his knowledge on the latest and most effective techniques in dentistry. He feels that dentistry is continually changing and these courses help him stay on top of the latest technology available in order to provide the highest level of care for his patients.
Dr. Koh is an active member of the American Dental Association and Academy of General Dentistry. He enjoys playing golf, listening to music, watching movies, cooking and spending time with family including his recently born baby girl. Dr. Koh is fluent in both English and Korean.

Read What Our Patients Say
Patient Reviews
I have used many dentists throughout my life, and I find the Family Dental Group to be among the most supportive, gentle, and competent teams I’ve visited.
Anonymous
We have always had excellent treatment from the entire staff. Dr. Stein and Dr. Friedman have been so great.
Andrea W.
I was very pleased with my experience at Family Dental Group. It was good to be treated with professionalism and care. Everyone was very nice, and it is nice to be treated well since you are the […]
Anonymous
I absolutely love this dental group Dr. Mila, the pediatric dentist and her assistants alway make sure my boys are comfortable and pay special attention to them during their visits. I was always […]
Shanda M.
Everything was great
Constance D.
My children and I love Dr. Mila Belgrade and Nicole! They were very gentle and made us laugh throughout the appointment and that helped put the boys at ease!
Crystal M.
Dr mila Belgrade and assistant eva are the best I feel happy how treat mia and very clean thanks
Edwin M.
I’m sitting here for the 2nd time this month, my son is getting some cavities filled and Dr. Mila is singing and he is giggling hysterically, trying not to move! I’m so happy we came here and so […]
Nira R.
I was very happy with the work being done on my teeth, my mouth looks amazing dr.friedman is amazing I felt very comfortable not nervous at all. I feel like a new person great work the staff is […]
Margaret W.
I initially went here because my regular dentist doesn’t do root canals for some reason. Been there 3 times now for a painless and effective root canal by Dr. Stein, a thorough check up and […]
Phil G.
Always a pleasure going to Family Dental. Dan is a wonderful hygienist!
Anonymous
I live far away and was visiting relatives when I encountered a dental emergency. FDG gave me an immediate appointment and treated me like I had been their patient for decades. This was on a […]
David S.
Great employees, such a friendly and comfortable environment, and Dr. Dean really knows what she is doing!!
Kylie R.
Dan the hygienist does a wonderful job on my cleaning and gum treatment I would not go to another person been coming here over 5 yrs very happy thank you dan
Lisa M.
Very thorough, efficient. Great staff.
Heather S.
Dr. Leo checked my x-rays and showed me that I needed a cavity filled and the crown replaced. She expertly and painlessly took care of everything while making me feel comfortable and special. […]
Dietmar H.
I was brought right in and made very comfortable. They explained everything and made the procedure as easy as possible
Christina M.
Very friendly and very accommodating. Love this practice! My kids are especially fond of their peds dentist too!
Vicky K.
Everyone was extremely helpful. Great bedside manners. I felt very relaxed. All my questions were answered professionally and I plan on staying with this Dental group.
Christine M.
I loved Dr. C. She was great. I have never had a cavity before and she put me right at ease about the procedure and what to expect. She was awesome!
Holly T.
Office Hours
Mon. – 9:00 AM - 5:00 PM
Tue. – 9:00 AM - 6:00 PM
Wed. – 9:00 AM - 6:00 PM
Thu. – 9:00 AM - 6:00 PM
Fri. – 9:00 AM - 4:00 PM
Sat. – 9:00 AM - 4:00 PM
Sun. – Closed
Phone: (914) 357-8916
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For appointments, call us at: (914) 357-8916 or
Request Appointment
For appointments, call: (914) 357-8916
Office Hours
  • Monday 9:00 AM - 5:00 PM
  • Tuesday 9:00 AM - 6:00 PM
  • Wednesday 9:00 AM - 6:00 PM
  • Thursday 9:00 AM - 6:00 PM
  • Friday 9:00 AM - 4:00 PM
  • Saturday 9:00 AM - 4:00 PM
  • Sunday Closed
Get in touch:
  • Phone: (914) 357-8916
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