Mark A. DeNigris, DDS

Following a Tradition of Dental Excellence Since 1954

Meet Our Team

Mark A. DeNigris, DDS

“Following a tradition of dental excellence means that we make sure each and every patient receives the dentistry they need delivered in a caring, gentle manner using the latest dental technology. Our blend of old-fashioned care and leading-edge technology has earned us our patients’ trust and respect from one generation to the next.”

Following in his father’s footsteps

“This practice was established by my father, Dr. Guy DeNigris, back in 1954 and was built on developing long-term relationships with patients the old-fashioned, caring way. Like my dad, I enjoy helping people achieve healthy smiles, and my patients appreciate what I do. I can’t think of anything else that I would rather do for a living.”

  • DDS: Graduated Head of Class, Georgetown University School of Dentistry, 1980
  • BA: Catholic University, 1975
  • Licensure: State of New York

Advanced training makes the difference

“In order to continue to improve and stay current, dentists must constantly learn about new advances in care. I have always sought out the best continuing-education courses available, preferably those that allow hands-on training.”

  • Advanced Training: Includes hundreds of continuing-education hours in all aspects of dentistry

Active in professional organizations

“Professional dental organizations keep me informed of new developments in dentistry — all of which benefits you as a patient. Plus, I’ve had the opportunity to present and share techniques and difficult cases with other dentists.”

  • Member: American Dental Association, Academy of General Dentistry

In his free time, Dr. DeNigris enjoys sailboat racing, golfing, fishing and shooting.


Dominique Caucci - Office Manager

Bio Coming Soon


Donna LaFiandra - Hygienist

Bio Coming Soon


Neema Patel - Dental Assistant

Bio Coming Soon


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

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