Family Dentistry in Locust Valley, NY

Comfortable, quality care for patients at any age.



Meet Dr. Koster

At Locust Valley Dentists, Dr. Adrianne Koster wants to help everyone achieve a beautiful and healthy smile. She understands the unique dental health needs and concerns that accompany every stage of life. She’s known for both her eye for detail and a gentle chairside manner. Her patients say she is warm, caring, and the best dentist they’ve ever seen.

She is a graduate of The State University at Stony Brook Dental School and completed her General Practice Residency at the Long Island College Hospital in Brooklyn, NY where she treated an underserved community and continued to develop her approach to caring for kids and adults. During her early career, she worked at several prestigious Manhattan practices using high-tech treatments for both general and cosmetic procedures.

She brings her experience, education, and expertise to Locust Valley Dentists, creating a family dentistry practice that’s truly one of a kind.

family dentistry dr koster at locust valley dentists new york

" Dr. Koster is a great dentist who is patient, attentive, and gentle.  She took the time to explain every treatment option available and made sure that all of my questions and concerns were addressed. The staff is very friendly and always willing to work around my schedule.  I would definitely recommend Dr. Koster for your dental care. "

- Jeniza K.

I love this office! Dr Koster knows what she’s doing and has great staff that are friendly and professional! What I appreciate the most is her attention to detail, looking out for my best interest and letting me know what’s happening with my health so I can take better care of myself. This Doctor is truly someone who cares about her patients!!! "

- Renee S.

Dr. Adrianne Koster is Amazing! She is caring, gentle, extremely personable, and provides exceptional dentistry. The staff is very professional and nice. Thank you! I love my new smile. "

- Maria G.

Ready to begin your journey to a healthy smile?

Family Dental Services in Midtown East

Whether you’re caring for your first newborn or have a whole posse of all ages, Locust Valley Dentistry is here for all your dental needs. We take our patients’ oral health personally and treat everyone like they are part of our family. For personalized care with a compassionate team, book your first appointment today.

Adult Dental Services in Midtown East

For many adults, our approach to dental care comes as something of a revelation. We’re not here to judge or talk about what you could’ve done differently in the past. We want to make you comfortable and help you make smart choices for your dental health moving forward. Whether you’re looking to replace lost teeth, fix the appearance of your smile, or anything else, you’ve come to the right place.

Dental Exams and Cleanings

Of course, the backbone of a good dental hygiene plan is routine cleanings provided by a dental professional. Seeing us twice a year keeps your smile healthy, bright, and beautiful and we strive to make every visit to our family dentist office pleasant and smooth.

General Dentistry

We understand that taking care of your teeth can be hard at times. Finding out you have a cavity or gum disease doesn’t have to be a judgment, only a diagnosis. Dr. Koster and the team at Locust Valley Dentistry have the experience of providing quality care to adults of all ages, helping restore their confidence in their smile with the most appropriate treatment or solution for them.

Cosmetic Dentistry

Our smiles say a lot about who we are, and everyone wants to look their best when flashing their pearly whites. If you think your smile could use an upgrade, we’re happy to offer a variety of options to whiten, reshape, and contour your teeth for a smile that’s beautiful by design.

Pediatric Dentistry Services in Midtown East

Whether you’re caring for your first newborn or have a whole posse of all ages, Locust Valley Dentistry is here for all your dental needs. We take our patients’ oral health personally and treat everyone like they are part of our family. For personalized care with a compassionate team, book your first appointment today.


When a new baby comes into the house, everything changes. We help parents both new and old get the knowledge, tips, and recommendations they need to keep their little one’s baby teeth healthy as they grow, setting them up for a lifelong healthy smile.

Early Dental Care

We offer flexible appointment environments for infants and young ones to help them feel comfortable and get the professional dental care they need, from their first tooth to their full set of permanent teeth. Call our dental office today to find out how we can make a difference in your dental experience.

Teenage Dental Needs in Midtown East

The teenage years are a time of transition and change. We help teenage patients take responsibility for their own dental health, answering their questions, and helping them plan for their future. We talk to teenagers about how their diet affects the health and appearance of their teeth and how to spot signs of possible decay and disease, especially as they enter young adulthood.


These days, kids have a choice when it comes to realigning their teeth: traditional, clunky braces, or Invisalign. During an appointment with us, we can determine whether your child is a good candidate for this transformative treatment and start you on the path toward straight teeth and a beautiful smile.

Hygiene Tips

We know that families with teens can have trouble getting them excited about dental hygiene at home, which is why we’re intentional during check-ups to encourage young adults to build good habits early to protect their smiles.

Geriatric Dental Services in Midtown East

Aging individuals might notice that their teeth and gums are weakening over time. Over time, tooth enamel can be worn down by certain foods, beverages, and physical stressors like teeth grinding and harsh tooth brushing. We offer many dental services so that you can keep your teeth healthy and strong to maintain your quality of life.


We offer partial and complete dentures to fill in missing teeth or replace all the teeth on the upper or lower jaw. By using durable materials like porcelain and metal, your new artificial teeth will create a stronger surface that makes it easier to eat without damaging the surrounding structures in your mouth. Dentures also have a natural look and feel so that you can feel confident about your brilliant smile!

Sleep Guards

Snoring often affects older individuals since the muscles in the throat become lax and can more easily collapse into the airway while you sleep. This partial blockage is responsible for snoring and disorders like sleep apnea. Dr. Koster can provide you with a custom-fit sleep guard or oral appliances that will help you sleep soundly and maintain your oral health.

What To Expect From Your First Visit in Midtown East

Once you schedule an appointment, it can be nerve-wracking as you build up expectations for your first visit. What will Dr. Koster do, how stressful will the experience be, and other questions serve only to cause further stress? Here’s what will happen when you show up for your first appointment.

First, we’ll have you fill out intake forms (unless you filled them out online!), then take you on a quick tour of our beautiful office. Then, we’ll review your dental and medical history, take X-rays and any other scans Dr. Koster orders, and do a gentle and thorough cleaning of your teeth. Dr. Koster will review all the information she’s gathered and plan the next appointment, whether for another routine cleaning or for a specific need, and you’ll be on your way!

Locust Valley Dentists: Are we right for your family?


  • A convenient office location with hours that fit your busy schedule


  • There’s no stress and no judgments here, just a focus on your health


  • Our modern, calm, and relaxing office has everything you need


  • Work with our friendly team and develop a deep understanding of your dental health

Ready to become a patient at Locust Valley Dentists?

If this is your first visit to our office, expect your appointment to take about an hour. During this time, we’ll:

  • Tour the office and introduce your family to our team
  • Review your medical and dental health histories
  • Gently and thoroughly clean your teeth and conduct a comprehensive exam
  • Work with you to create a follow-up plan and schedule your next visit

You’ll leave feeling confident you’ve found the right dentist!

No Insurance? No problem.

We believe you don’t need dental insurance to achieve a healthy and beautiful smile. We work with our patients and offer a variety of flexible financing options. If you have questions about how much your visit will cost, just let us know.

Insurance & Financing

Locust Valley Dentists works with most PPO insurance providers.

We can help you file your claim and maximize your family’s insurance benefits. Don’t see your insurance company listed? Have questions about payment options? Call us at (516) 759-2288 for more information.

family dentistry with no insurance at locust valley dentists new york
9am - 6pm
8am - 5pm
9am - 5pm
9am - 6pm