Diana Backer, DDS

“When I went to dental school, I never looked back. I love what I do. The dentistry I practice focuses on biocompatibility, health, and safety.”
Diana Backer, DDS
Dr. Diane Backer - Massapequa Dentist

Dr. Backer is a mercury-free holistic dentist with over a decade of experience practicing holistic dentistry. Compassionate and caring, her approach to dental care places emphasis on creating and maintaining a strong, healthy, and beautiful smile by using biocompatible materials for optimal health.

Dr. Backer discovered her passion for dentistry at the early age of 16. Working as a dental assistant through high school and  attending the State University of New York at Farmingdale dental hygiene program gave Dr. Backer real-world dental experience at a young age and a stable foundation for her lifelong career. 

It was her love of practicing hygiene combined with the desire to expand her knowledge and utilize her natural artistic abilities that led her to enroll at the University of Maryland Baltimore College of Dental Surgery. 

The school was the first in the world to offer a science-based curriculum in dentistry and has been committed to maintaining its position as a leader in oral health education since 1840. 

After graduation in 2000, Dr. Backer completed a year of general practice residency and countless hours of continuing education. She acquired the knowledge and skills to deliver the most current and holistic preventative, restorative, and cosmetic dental procedures like NuCalm holistic sedation with attention to detail and a gentle touch.

Meet Our Doctors


Stephen Rogers,

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James Woltmann,

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Anthony Geraci,

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David Broughton,

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"Have been going to this Dental Office for 25+ years. The doctors, hygienists and office staff are amazing. Great dental care and compassionate doctors. Highly recommend."
Kat P.
Greater Long Island Dental
101 New York Ave.,
Massapequa, NY 11758
Click for Directions
Tel: 516-798-4223 | Fax: 516-798-9457
Monday - Thursday | 9am - 7pm
Friday | 9am - 2pm
Saturday | 7am - 12pm (Apr-Oct)
Sunday | Sat- 8am - 1pm (Nov-Mar)

See you soon!

Call (516) 798-4223 to schedule your appointment. The path to a healthy and beautiful smile starts right here at Greater Long Island Dental in Massapequa.

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