Dr. Dai

Meet Dr. Harrison Dai

Dr. Harrison Dai graduated from Stony Brook University in 2011 with a Bachelor of Science degree in Biology & Magna Cum Laude honors. He later earned his Doctorate of Dental Surgery at Stony Brook University School of Dental Medicine before completing his residency at Nassau University Medical Center. As a native Long Islander, Dr. Dai is passionate about serving his community by providing quality dental care & advancing the awareness of maintaining proper oral health.

What Our Patients Say About Us

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Destini Tahn
October 26, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I have been a patient at Lake Success Dental for over 10 years, and I have always had a wonderful experience! The staff are consistently professional, courteous, and welcoming. I have never felt the need to go anywhere else, and I have even recommended the practice to my family members. Their consistent quality of care and excellent service are why I have remained a loyal patient for so many years. I highly recommend Lake Success Dental!
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Richard Ciappa
October 22, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very competent service. Very efficient. A perfect fitting crown. Great follow up for post care check up
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Kimberly C
October 20, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great experience. This was my first time there and they made me feel so welcomed.
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T Isaacs
October 20, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great care, calm practitioners, good attention to detail.
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Veronica Rodriguez profile picture
Veronica Rodriguez
October 11, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
My family and I recently visited this dental office for the first time, and we had a wonderful experience. From the moment we arrived, the staff was welcoming, attentive, and professional. What stood out the most was the level of care and communication throughout our visit. They took the time to explain each procedure, kept us informed every step of the way, and consistently checked to make sure we were comfortable and doing okay. It’s refreshing to visit a dental office where patients are treated with such kindness, patience, and respect. The entire team made our first visit a positive and comfortable experience. We truly appreciate the care we received and look forward to returning. Highly recommend!
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Kasia Kocon
October 6, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
What an amazing teamwork. Kind, respectful and very professional. They understand the patient anxiety and they work very hard to make you smile again. Definitely coming back. P.S dr Rachel is amazing.
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Masud Peach
October 3, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Today I went for my regular cleaning , I must say it was the best cleaning ever. Everyone in the office -front desk, cleaning staff, doctor provided the best service possible. Highly recommended to anyone
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Robert Hamaoui profile picture
Robert Hamaoui
September 29, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
A+ for my overall experience
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Jonathan Brutus profile picture
Jonathan Brutus
September 29, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Amazing experience as always!

Improve Your Health & Resistance to Disease With Two Cleanings a Year!

Start your journey to better health with us today. We have $0 cleanings for insured patients & free second opinion consultations. We also have expanded our hours to include evenings in order to fit your busy schedule.

Call Today

1300 Union Tpke #208
New Hyde Park, NY 11040
Call Today
516-352-6777


Open 7:30am–9pm & on Saturdays to Make It Easy for You!

Lake Success Dental Care logo
Monday: 9am–9pm
Tuesday: 9am–9pm
Wednesday: 9am–9pm
Thursday: 9am–9pm
Friday: 9am–5pm
Saturday: 7:30am–4pm
Sunday: By Appointment Only

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