Chelmsford Dental Specialists Group

Chelmsford Dental Specialists Group Dr. Mario Gatti, DMD, FACP, CAGS
Dr. Mei-Yee Chan
Dr. William Negreiros
Dr. Ohan Manoukian

Our practice, Chelmsford Dental Specialists Group, was founded in 1983 by Dr. Michael Sargent under the name Michael Sargent Dentistry. Today, we provide comprehensive care with a team that includes three general dentists (Dr. Mei-Yee Chan, Dr. Yousef Sidki, and Dr. William Negreiros) and a prosthodontist (Dr. Mario Gatti). We want our patients to be able to participate in their own care, which is

why we put so much emphasis on education. We know that our patients have a wide variety of oral health needs; as such, we provide a wide range of services, from dental crowns for repairing natural teeth to dental implants for filling in the gaps in your smile to teeth whitening for brightening your grin. Our dentists in Chelmsford are looking forward to getting to know you better and forming a trust-based relationship with you. To schedule a consultation with our team, pick up the phone and reach out to us today!

We'd like to wish a very Happy Birthday to Colleen! 🍰❤️Thank you for everything you do behind the scenes and beyond. Hav...
06/24/2026

We'd like to wish a very Happy Birthday to Colleen! 🍰❤️

Thank you for everything you do behind the scenes and beyond. Have a great day!

06/19/2026

When the front staff is always cold 🥶

06/11/2026

Happy National Smile Month from your Chelmsford Team! ✨😁

Thank you for trusting us with your beautiful smiles. Here's to healthy teeth and plenty of reasons to smile this month.

06/05/2026

Your healthiest smile starts here at Chelmsford Dental Specialists Group ❤️

05/25/2026

The office on Friday: ✌️🎉
The office on Tuesday: send iced coffee & good vibes 😅

05/22/2026

Have a good Memorial Day weekend 🇺🇸 ... and don't forget to floss after the cookout! 😁🌭

Reviews like this mean everything to our team. 💙Thank you for trusting us with your smile! We’re so grateful for patient...
05/21/2026

Reviews like this mean everything to our team. 💙

Thank you for trusting us with your smile! We’re so grateful for patients who notice the care, compassion, and dedication we put into every visit. 🦷✨

05/15/2026

Nothing hits harder than the last patient agreeing to come in early. 🤝😁

Happy Friday from your Chelmsford group!

Strong teeth start with healthy gums. Celebrate Gum Health Day by taking the first step toward healthier gums with deep ...
05/13/2026

Strong teeth start with healthy gums. Celebrate Gum Health Day by taking the first step toward healthier gums with deep cleaning care. 💙

Address

21 Chelmsford Street
Chelmsford, MA
01824

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 7pm
Wednesday 8am - 6pm
Thursday 8am - 5pm
Friday 8am - 2pm
Saturday 8am - 2pm

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