Meet Dr. Michelle Cartier

Welcome to my practice! My name is Dr. Michelle Cartier and I am an orthodontist in Southampton, New York. I have been in practice in Southampton since August of 1998, and have been practicing orthodontics on Long Island since 1995.

My profession brings me a great deal of happiness. I enjoy my patients and their adventures as well as their varying perspectives on life. I can take the best that all my adult patients, my young patients, and my employees have to offer and use that acquired knowledge to live my life with purpose, with happiness, and honesty. Above all else, I will try to make a positive impact in my patients lives by truly caring for them with a sincere and gentle touch and at the same time unlock winning smiles!

I am dedicated to the overall care of my patients and their final results. I treat all of my patients as if they were my own child or a family member. I strive for perfection with all my patients. They are key components to success of treatment. I love the beautiful smiles that are created; these smiles are embraced by my patients and empower them with confidence.

Education and Experience

I was inspired at a very young age to join the orthodontic field by both my dentist, who also happened to be my uncle, and my orthodontist. I began my journey to achieve this goal at Mount Holyoke College, where I graduated Magna Cum Laude in 1986 with a Bachelor of Science in Chemistry.

I immediately went to Georgetown University Dental School in Washington, DC and graduated in 1990 with my Doctorate of Dental Surgery (DDS). I was a member of Omicron Kappa Upsilon Dental Honor Society. I practiced general dentistry for three years before returning to school at Boston University to earn a Certificate of Advanced Graduate Study (CAGS) in Orthodontics in 1995.

Before opening my own office is Southampton, I worked as an associate in several orthodontic practices on Long Island. Practicing general dentistry for three years and associating with other orthodontist has given me the best perspective on treatment. I understand the objectives and desires of the dentists and I learned various techniques and approaches from older more experienced orthodontists. 

Continuing Education

I believe that continuing education is a vital aspect of creating the most beautiful smiles for my patients. I belong to an orthodontic study group that I formed in 2009. We are five orthodontist that get together on a regular basis to discuss the latest developments and advances in the orthodontic field. I belong to another study club comprised of dentists and other specialists and we challenge ourselves with  treatment planning patients that need more than one specialist.

I regularly keep up with the New York State continuing education credit requirements with online classes,  attendance at the American Association of Orthodontists (AAO) annual national meeting and the Northeast Society of Orthodontists (NESO) annual regional meeting.

Professional Affiliations

  • American Board of Orthodontics
  • American Association of Orthodontists
  • American Dental Association
  • Northeast Society of Orthodontists
  • Southampton Hospital Dental Staff



Outside the Office

I grew up in Western Massachusetts in Springfield, and now live on Long Island. I am married to my wonderful, patient, husband, Tony. We have two children, Christina and Anthony.

When I am not working, you can find me enjoying the great outdoors. In warm weather I am at the running, hiking, gardening, at the beach, or playing tennis. In colder weather I love to ski, skate, and go sledding. I really enjoy the outdoors and the beautiful world in which we live. I love to travel and hope to see more of the world. I am passionate about conservation and believe we need to care for our planet, as its natural resources are not infinite. We need to reduce, recycle, replant!

I am happy to be an active member of my neighborhood. I volunteer in my community at the food pantry, the soup kitchen, and clean-up projects at the local beaches and parks. When one is active in their community the passion spreads and the neighborhood is made beautiful for all to enjoy. I feel it is our responsibility as humans to help others in need both locally and worldwide. We need to remind ourselves that we all smile in the same language.


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