Locust Valley Dentists

Award-winning cosmetic & general dentist



About Dr. Adrianne Koster

Her colleagues describe her as a perfectionist with an unparalleled eye for detail. Her patients describe her as warm, caring, and attentive. It’s always Dr. Koster’s goal to provide outstanding treatment for her patients as well as to educate them on their own dental health while exploring all treatment options.

Dr. Adrianne Koster is a graduate of The State University at Stony Brook Dental School where she also earned her undergraduate degree. After graduating, she chose to complete a General Practice Residency at the Long Island College Hospital in Brooklyn, NY in order to give her time to treat an underserved community and gain more clinical skills. Her early career found her at a number of prestigious Manhattan practices where she sharpened her skills in general and cosmetic dentistry. There she continued to develop her friendly and gentle approach to patient care and perfect the use of the latest dental technologies and treatments.

Throughout her career, Dr. Koster has been an active member of the ADA, AACD, New York State Dental Association, American Equilibration Society (AES), Nassau County Dental Society, and the New York County Dental Association, committed to learning and continuing her dental education. Her dedication, passion, and top-notch patient reviews have earned her the title of “Top New York Dentist” since 2016.

Dr. Adrianne Koster

Ready to begin your journey to a healthy smile?

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General Dentistry

Education, health, and prevention are the foundation of Dr. Koster’s approach to general dentistry. Regular cleanings, exams, and oral cancer screenings aid in the prevention of cavities, painful toothaches, gum disease, and other diseases of the teeth and gums. With a conservative approach to dental care, we help patients avoid unnecessary procedures that are not essential for their dental health. 

The doctors and staff at this office are amazing! Some of the nicest people you can hope to meet, and the dental work that I received was phenomenal. The office is inviting, and the care that is taken to make sure things are done correctly is top tier. Great experience. "

- Roger V.

"Dr. Koster has done extensive dental work for me over the years. She is both kind and caring. She is thorough in her work and takes the time to explain in detail what she is doing. Her compassionate nature has a calming effect during her work. "

-Thomas H.

Both my daughter and I have been patients of Dr Koster's and we couldn't be happier. She has a gentle demeanor and is super thorough. She shows genuine concern for our teeth and gives us advice on what to keep doing/do more of to keep them healthy. Her office staff are really nice too. I am grateful to be in their good hands. "

- Dawn C. 

Cosmetic Dentistry

Our strong cosmetic focus allows patients to achieve smiles that are both healthy and beautiful. Our cosmetic dental services include offering patients the choice of white composite or porcelain fillings, porcelain veneers or crowns, as well as teeth straightening with Invisalign. We also provide a variety of gentle teeth whitening dental procedures like ZOOM in-house whitening and custom take-home whitening trays.

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Family Dentistry

Our office welcomes the young and the young at heart. Kids, teens, young people, and adults receive quality dental care tailored to their unique needs. We create meaningful and lasting relationships with patients through education and a commitment to comfortable and gentle care, even in a dental emergency. We can work around your busy schedule to make sure your whole family gets the care they need.

Locust Valley Dentists: Are we right for you?


  • Convenient office with hours that fit your busy schedule


  • There’s no stress or judgment here


  • Get the care you need in our modern, calm, and relaxing dental office


  • Learn how to improve your dental health from our friendly team
new patient dentist information at locust valley dentists new york

New Patient Information

At Locust Valley Dentists, we take every opportunity to provide the highest quality of care for our patients, increasing both their comfort and the quality of our work. When performing some services such as dental fillings or dental implants, our protocol is to use a rubber dam to protect the patient from ingesting harmful materials and increase the longevity of the restoration.

The materials utilized in our office are chosen based upon our experience with the product as well as being backed by numerous studies.

We offer our patients protective eyewear, headphones with soothing music, and the use of blankets or neck pillows along with aromatherapy to decrease anxiety during treatment. Our innovative approach makes every dentist appointment at Locust Valley Dentists a more relaxing and comfortable experience.

Ready to become a patient at Locust Valley Dentists?

Ready to become a patient at Locust Valley Dentists?

Your first appointment will take about an hour, where we’ll:

  • Tour the office and introduce you to our team
  • Review your medical and dental health history
  • Gently and thoroughly clean your teeth and conduct a comprehensive exam

You’ll end your first appointment feeling confident you’ve found the right dentist!

No Insurance? No problem.

You don’t need dental insurance to have healthy and beautiful teeth. We work with our patients, offering financing options to ensure they get the care they need. If you have questions about how much your visit will cost, just let us know.

Insurance & Financing

Our friendly front office team will help you file your claim and maximize your insurance benefits. If you don’t see your provider listed or if you have questions about payment options, call our office and we will be happy to answer all your questions. 

Our office works with most PPO insurances.

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