Your Trusted Dentist in Massapequa, NY

See how we’ve created Massapequa’s #1 dental experience!

Book Online

(516) 798-4223

4 expert dentists

committed to you

1900+ 5-star reviews,

and counting!

Multi-specialty dentistry

all in one place

Effortless dentistry

Built around you

Looking for a Massapequa dentist who makes things feel easy from the start? At Greater Long Island Dental, generations of families have trusted us for one reason: we pair proven care with a modern, high-tech approach to create a better dental experience.

Nothing here is accidental. Every detail is designed to respect your time and make care feel clear and easy.

greater long island dental plant by front desk

greater long island dental procedure in progress

greater long island dental staff taking a photo

Why patients choose us.

(and stay for years)

When you choose us, you’re choosing a team with more than 40 years of experience, and the kind of care that shows up for you, every time

Get the highest level of technology

Same-day crowns, 3D imaging, single-visit veneers, and more, for efficient care.

Clear communication, every step

You’ll always know what’s happening and why, with answers that make sense.

Options that fit real life

Flexible affordability choices help you move forward with confidence and clarity.

Our services help your smile thrive

Keep your teeth and gums healthy

With exams, cleanings, and personalized care, we help you protect your teeth and gums, catch issues early, and build habits that keep your oral health on track for the long run. Expect modern techniques, gentle care, and guidance that fits your routine.

Explore General Dentistry

Book a Cleaning

Feel confident in your smile

Whether you want a brighter smile or a more balanced look, we’ll help you choose the right options for your goals and design results that still feel like you. Think confidence, polish, and a smile you’re excited to show off.

Explore Cosmetic Dentistry

Book Cosmetic Consultation

Restore comfort, confidence, and strength

Our restorative treatments rebuild your smile with advanced technology and durable materials, so it looks natural, functions comfortably, and supports long-term oral health. We focus on solutions that feel secure and help you get back to life without hesitation.

Explore Restorative Dentistry

Book Restorative Consultation

Restore comfort, confidence, and strength

Real smile transformations

These before-and-after examples show what’s possible when advanced dentistry meets careful planning and attention to detail. Take a look, and imagine what your own smile could become.

Cosmetic Smile Gallery

Invisalign® Smile Gallery

CEREC® Smile Gallery

Gum Rejuvenation Smile Gallery

Veneers Smile Gallery

View More Cosmetic Smiles!

View More Invisalign® Smiles!

View More CEREC® Smiles!

View More Rejuvenation Smiles!

View More Veneers Smiles!

Care on your terms

Have questions about our payment options? Call us: (516) 798-4223

Insurance

We’re a fee-for-service practice, which means your care is based on what’s best for your health and goals, not what an insurance network allows. And even though we’re not in-network, we’ll still file your claims for you, so you can receive reimbursement from your insurer according to your benefits.

Flexible options that fit real life

To keep care accessible, we offer flexible ways to pay. We accept cash, check, and major credit cards. We also work with CareCredit and LendingClub, financing options that help many patients qualify for 6-month or longer interest-free plans. We also offer extended payment plans to support bigger treatment plans with a monthly approach that feels manageable.

FAQs

Do you accept new patients at Greater Long Island Dental?

Yes, we’re welcoming new patients. If you’re looking for a dentist in Massapequa, NY who makes the process simple from the start, you can book online or call our office, and we’ll help you find a visit time that works.

What services do you offer?

Greater Long Island Dental is a multi-specialty dental practice in Massapequa, NY, which means most care can be completed right here, often without referrals. We provide general dentistry (cleanings & exams, root canals), cosmetic dentistry (Invisalign®, veneers, teeth whitening), and restorative dentistry (crowns, same-day crowns, implants, bridges, and dentures).

Do you offer same-day crowns in Massapequa, NY?

Yes. With advanced technology like CEREC®, we can provide same-day crowns and other efficient treatments, saving you time without compromising quality.

Can you help if I have dental anxiety?

Absolutely. Many patients choose us as their dentist in Massapequa, NY because we take comfort seriously, clear communication, a calm environment, and supportive options like sedation dentistry can make visits feel easier and more manageable.

Do you accept dental insurance if you’re a fee-for-service dentist?

We’re a fee-for-service dentist in Massapequa, NY, which means we’re independent from insurance restrictions and can focus on what’s best for your health and goals. While we’re not in-network, our team will file your claims for you, so you can receive reimbursement based on your plan’s benefits.

What payment and financing options do you offer?

As a patient-first dentist in Massapequa, NY, we offer flexible payment options to help care feel more accessible. We accept cash, check, and major credit cards, plus CareCredit and LendingClub. Many patients qualify for interest-free plans, and we also offer extended options for larger treatment plans.

Do you handle dental emergencies?

Yes. If you’re experiencing a toothache, broken tooth, swelling, or dental injury, we provide emergency dental care and do our best to see patients as quickly as possible, often the same day.

How do I know which cosmetic treatment is right for me?

That’s where our experience comes in. During a cosmetic consultation, we’ll talk through your goals and recommend options like Invisalign®, veneers, whitening, or cosmetic bonding, always tailored to your smile, timeline, and comfort level.

Why choose Greater Long Island Dental?

Patients choose us as their dentist in Massapequa, NY, for one reason: the experience feels different. With 40+ years of care, 5 expert dentists, advanced technology, and 1,900+ five-star reviews, we’re known for dentistry that feels modern, thorough, and genuinely supportive, start to finish.

An experience worth sharing

1,900+ five-star reviews

- Julie H

From the moment I walked in, the staff made me feel comfortable and welcome. Dr. Backer and Corey were incredibly thorough, explained every step, and truly took their time. I never felt rushed, and the state-of-the-art technology gave me total peace of mind. One of the best dental experiences I’ve ever had.

- Bonnie L.

Dr. Collins and Michelle completely changed my fear of the dentist. They are calm, gentle, and genuinely care about their patients—not just teeth, but people. I always feel listened to, cared for, and treated like family. I leave every appointment smiling.

- Aida L.

This dental office is outstanding. Scheduling is flexible, the doctors are professional and attentive, and the entire staff is compassionate and dedicated. I always feel confident and well cared for here.

- Laura C.

This was my first visit—and an emergency visit at that. The office is immaculate, the staff is amazing, and Dr. Collins took the time to thoroughly explain everything while making sure I was comfortable the entire time. I highly recommend this practice.

- Joanne M.

This was the most professional dental office I’ve ever been to. Everyone was welcoming and smiling, the equipment is state-of-the-art, and Dr. Backer gave me the most thorough exam I’ve ever had. An all-around excellent experience.

- Kristine D.

The entire staff is incredibly friendly and helpful. Jacky made me feel calm and comfortable, and Dr. Woltmann provided expert, pain-free care using top-of-the-line equipment. You are truly in great hands here.

- Volkan T.

From the moment you walk in, your comfort is clearly the priority. The staff is warm, the office is spotless, and Jocelyn went above and beyond to explain everything and ease my anxiety. I actually had a great experience at the dentist and am looking forward to my next visit.

- Kathleen O.

This was my first visit, and I was so impressed. Everything was explained in detail, I never felt rushed, and the entire team was professional and friendly. Dr. Geraci addressed all my concerns, and the staff made the experience seamless.

- Andrew A.

Dr. Collins and Jacky are amazing—gentle, caring, and attentive. They offer thoughtful comforts like stress balls and noise-canceling headphones, and the office is tranquil and modern. I never liked going to the dentist until now.

- L. Gallagher

As a new patient, I had a wonderful experience. The entire team treats you with kindness and respect. Dr. Woltmann and Michelle were terrific—friendly, knowledgeable, and reassuring.

- Celeste H.

I had a minor dental emergency and was seen within two hours. It turned out to be the best dental visit I’ve ever had. Everyone was kind, knowledgeable, and genuinely caring. I was so impressed that I switched to their practice.

- Julianna A.

This was the most thorough dental appointment I’ve ever had. The technology is modern, everything was explained clearly, and Cori was absolutely amazing. If you’re looking for a new dental office, book here.

- Ashley C.

The staff was incredibly friendly, and Jacky made me feel completely at ease. I get very nervous at the dentist, but she talked me through everything and took my anxiety away. Such a kind and comforting experience.

- Terry P.

They were able to accommodate my 99-year-old aunt at the last minute after she lost a tooth. The entire staff was patient, professional, and compassionate. We felt truly cared for, and I’m very grateful.

- Gladys

Dr. Collins and her assistant, Jeremy, are the best. I had a great experience and felt very well taken care of.

- Robert L.

This office goes above and beyond to make patients feel comfortable and informed. In a world of big-box dental practices, this is a place that truly cares and builds relationships. I was very impressed.

- Kaity H.

My son and I had a wonderful experience. The staff is warm and professional, and the office is clean and modern. My 4-year-old felt comfortable enough to go in alone. I never felt rushed and felt genuinely cared for.

- Elaine T.

Always a great experience. The staff is professional and friendly, and Chelsea is excellent for cleanings. My family has been coming here for years and will continue to do so.

- Rich L.

One of the best dental offices I’ve encountered. The staff is accommodating, knowledgeable, and friendly. The atmosphere is clean and calming, and the technology is state-of-the-art. Highly recommend.

Visit our office

Trusted by Massapequa families for over 40 years

Looking for a dentist near you? Visit our modern, welcoming office in Massapequa, designed for comfort, clarity, and efficiency. With advanced technology and a caring team, we make every visit feel easy.

(516) 798-4223

101 New York Ave, Massapequa, NY 11758