Mark A. DeNigris, DDS

Following a Tradition of Dental Excellence Since 1954

Our Office

If you are looking for a highly trained and experienced dentist in Syosset, you have come to the right place. At our practice, you will receive the highest quality dental care. Our dental office uses the latest state-of-the-art equipment and cutting edge technology and we uphold the strictest sterilization techniques. We know that many people may feel anxious about coming to the dentist, so it is our goal to make your visit with us as pain and anxiety free as possible. We view it as our mission to educate our patients about all of their oral health care options and to help guide them to choose a treatment plan that is most suitable and appropriate for their needs.

Scheduling Appointments

To make an appointment, simply call us or click here to Request an Appointment online.

Payment Options

We accept Mastercard, Visa, American Express and Discover credit cards as well as cash and personal checks. We accept most insurances, including those listed below. To find out more information, please call our office.

  • Aetna PPO
  • Sun Life Financial PPO
  • DHA PPO
  • CIGNA PPO
  • CIGNA Access Plan PPO
  • Delta Dental PPO
  • Dentemax PPO
  • Empire Blue Cross Blue Shield PPO
  • Guardian PPO
  • Horizon PPO
  • MetLife PPO
  • Prudential PPO
  • United Concordia PPO
  • United Healthcare PPO

Convenient Location

Our office is located at 34 South Oyster Bay Road, Syosset, NY 11791 with ample parking in our lot. Please enter your zip code or city, state below for door-to-door directions.

Your ZIP code:

Request Appointment

Office Location
34 South Oyster Bay Road
Syosset, NY 11791
New Patients: (516) 342-5027
Existing Patients: (516) 921-3290

Office Hours





Monday: 9:00am - 1:00pm
2:00pm - 6:00pm
Tuesday: 9:00am - 1:00pm
2:00pm - 6:00pm
Wednesday: Closed
Thursday: 9:00am - 1:00pm
2:00pm - 6:00pm
Friday: Closed
Saturday: 9:00am - 1:00pm

Contact Us Today!

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Mark A. DeNigris, DDS | Syosset Dentist | Dentist Office Syosset