Meet Dr. Nicholas J. DiNinno Jr., D.M.D.

Family Dentist in Fitchburg, MA

 Dr. Nichola J. DiNinno, Jr. - Dentist

Dr. DiNinno is committed to a lifetime of learning and continuing education. He has studied advanced procedures in restorative dentistry, cosmetic dentistry, implants and orthodontics. His particular fields of interest include implants and cosmetic dentistry.

  • Resides in Leominster
  • Graduated from Leominster High School in 1971.
  • Graduated from Fitchburg State College in 1975.
  • Graduated from Tufts University School of Dental Medicine in 1978.
  • Advanced education in orthodontics and orthopedics from The United Stated Dental Institute in 1978.
  • Advanced education in Invisalign.

He is a current member of the American Dental Association, Massachusetts Dental Society, Wachusett District Dental Society, American Orthodontic Society and the North Central Mass Chamber of Commerce.

His personal interests include spending time with his family, the outdoors, skiing, golf, tennis, fitness and playing the guitar.

Providing Quality Family Dental Care since 1978. Call us with any questions or to make an appointment.
DiNinno Family Dental Phone Number 978-342-8710 Schedule an Appointment Map & Directions
Our office hours are Monday 10:00AM - 5:00PM, Tueday through Friday 8:00AM - 6:00PM.

Recent Patient Testimonials

DiNinno Family Dental

5 out of 5 stars based on 144 reviews.

Patient Review By Tom B

Drs. DiNinno -- both father and son -- are true professionals in all aspects of their practice. Dr. Nick DiNinno Jr. has decades of experience, has seen it all and has provided excellent treatment throughout the years. Dr. Nicholas DiNinno III has the latest training in the dental industry and, coupled with state-of-the-art equipment, provides top-notch care and treatment. The staff is extremely courteous as well as being very qualified and competent. I always have a good feeling when I leave the office that I've been given dental care with my best interests in mind and that I've received the best treatment possible.

- Tom B

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Patient Review By Amanda H

I have been coming to see Dr. Nick since I was little and I have been working for the DiNinno's assisting Dr. Nicholas for the past 4 years. Due to the upcoming arrival of my second child, I will be staying home with my kids. I am so grateful that I have the opportunity to be home with my children, but I will also miss coming in to work here every day. There is no greater dental office to be a part of, as both a patient and an employee. Everyone here is one big family and we strive to make our patients feel as comfortable as possible. It is not uncommon to see our staff hugging patients who we have developed friendships with. Dr. Nicholas is not only a great dentist, he is also a wonderful person who truly cares about his patients, as do the entire staff here. Whether you're here for a routine cleaning with one of our hygienists or here for some fillings with either Dr. Nick or Dr. Nicholas, I can assure you that you will not be disappointed in this office. You will be treated with the highest quality of care dentistry has to offer. It has been a pleasure to be a part of this team and I will miss working at this office. I will continue to come here as a patient because there is no dentist I trust more with my or my family's care than Dr. Nick and Dr. Nicholas.

- Amanda H

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Patient Review By Matthew A

Look no further! I drive from Boston to DFD twice a year to get my teeth cleaned. Every since moving from Leominster in 2000, I tried other dentists closer to my new home (purely for convenience). After feeling uncomfortable at other dentists, I came to the conclusion that it was worth taking 3 hours out of my day twice a year to go back to DFD where I felt like family. I will continue to visit DFD for the foreseeable future. I recommend EVERYONE give DFD a try!

- Matthew A

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Patient Review By Jim L

I suffered for the past 6 months with my first filling after 55 years without a cavity. It had been filled by another Dentist and I was miserable because it had been done incorrectly and caused me a LOT of issues. Dr. DiNinno fixed it perfectly and I know feel I have my mouth back. The Dental Hygienist I saw for Regular Cleaning was exceptional, kind and gentle, but thorough. They have a GREAT team here at DiNinno and I HIGHLY recommend them.

- Jim L

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Patient Review By Lena C

Very nice staff. Great experience. Very clean. Definitely recommended for anyone that needs a dentist

- Lena C

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Patient Review By Amy G

The genuine care & concern is amazing. EVERY member of the staff went above & beyond to make sure I was well cared for.

- Amy G

5 out of 5 stars on

Patient Review By Matthew R

I’ve got the best teeth in town and it’s all thanks to DiNinno Family Dental! Both Nick’s have been tremendous dentists to me over the years, from regular cleanings to Invisalign. They have a helpful and friendly staff, shiny new office, and decades of experience. If you need a dentist, Nick’s the pick!

- Matthew R

5 out of 5 stars on