About Us

Life Changing Orthodontic Care

Our Dedicated Approach

At Great Bay Orthodontics, you’re more than just a set of teeth to straighten. Each and every individual who walks through our doors is a valued member of our patient family with a smile worth caring for. It’s our mission to understand your unique needs and tailor a custom treatment plan to give you results that will really make you smile. By combining the latest in technology and research with experience of the science behind your smile, we can ensure you are receiving the highest quality of care possible.

We understand that going to the orthodontist isn’t everyone’s walk in the park. At Great Bay, we’re looking to change the way you think about orthodontics. Our friendly team is motivated to ensure that you have a comfortable, relaxing experience from the moment you walk through our doors, and that you leave with the results you always envisioned. With trust and communication as our main values, we always welcome any and all questions during the treatment process, so you feel confident in your journey toward a beautiful smile. Our team can’t wait to meet you and give you the smile you’ve always wanted!

Part Time Surfer, Full Time Orthodontist

Meet Dr. John Walsh

Growing up in Connecticut, Dr. Walsh earned his undergraduate degree in Molecular and Cell Biology at the University of Connecticut in 2010, where he graduated Magna Cum Laude. He stayed in the Husky family for another 4 years, attending the University of Connecticut School of Dental Medicine where he received his D.M.D. in 2014. As a basketball fan, he was fortunate to witness a combined 6 NCAA National Titles between the women’s and men’s basketball teams during his time at UConn. Immediately after dental school, he completed an additional three years of specialty training in orthodontics and dentofacial orthopedics at Montefiore Medical Center in New York City. Even though he went to residency in New York City, Dr. Walsh is a passionate New England sports fan, especially the Patriots and Celtics.

Dr. Walsh is an active member of the American Dental Association, the American Association of Orthodontists and the Northeastern Society of Orthodontists. He has extensive training in treating multi-disciplinary and surgical cases, and has a strong background in orthodontic treatment with clear aligners. He stays up to date with the latest orthodontic innovations and techniques by regularly attending seminars and courses. Dr. Walsh is passionate about creating healthy, beautiful smiles that last a lifetime. He always welcomes questions and takes the time to answer and discuss them thoroughly with each and every patient.

When he’s not straightening your smile, you can find Dr. Walsh spending time outdoors with his wife, Sarah, his rescue dog, Stella and his 2 kids, Connor and Cora. He also enjoys surfing, skiing, mountain biking, hiking and photography. Chances are, you can find Dr. Walsh jumping in the water (even in winter time!) to go surfing or taking photographs of the waves. Next time you stop by for an appointment, be sure to check out his photography around the office! Dr. Walsh can’t wait to meet you and provide the top-notch orthodontic care you need to achieve a strong, straight smile for life.

Dr Walsh

Putting Your Best Smile Forward

Meet the Team

We’re proud to have a hardworking team that goes above and beyond to make your dental appointments efficient, gratifying, and comfortable. There’s nothing we love more than forming genuine connections with patients while providing the resources they need for a life-long healthy smile. If you ever have a question regarding your oral care, we’re more than happy to chat!

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Dental Assistant

Ali is a licensed dental assistant with over 5 years of orthodontic experience. She is dedicated to providing patients the best experience possible and making sure everyone leaves with a smile! In her free time, Ali loves spending time with her family and dogs.

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Front Desk

Chrisanta is the first person you see and is always happy to help with whatever scheduling, insurance, or account questions you might have. In her spare time, she loves trying new food and spending time with friends and family.

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Dental Assistant

Paige completed a dental assisting program through York County Community College. She helps to make sure our patients feel comfortable during every appointment and that they are on track to achieving their smile goals! Outside of work, she enjoys being creative and spending time with her cat, Freddie.

Don’t Take Our Word For It

Hear What Patients Are Saying

Dr. Walsh and the team at Great Bay Orthodontics care deeply about the work they do. The environment is calm, clean, and brings the beauty of the area we live, inside.

Raya A.
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Dr. Walsh has been so incredibly thorough, answering all of my questions during my visits. He is knowledgable and always makes sure that we’re on the same page with my plan. His staff are the absolute friendliest. Even when I’ve been running a bit late due to work, they’ve been both understanding and accommodating. The office is modern, sleek and immaculately clean. I have nothing but praise to show for Great Bay Orthodontics and the care they’ve provided to me and my teeth!

Jessica M.
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I would highly recommend Dr. Walsh and all of his staff. The office is beautiful, clean, and everyone is so welcoming. You can tell they are passionate about the care they give to each patient. I appreciate how Dr. Walsh and Natasha thoroughly explained everything and made sure that all of my questions were answered. Thanks Great Bay Orthodontics!

Erica G.
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I absolutely loved my free consultation! Theresa, Natasha, and Dr. Walsh were all so kind and helpful. 10/10 recommend!

Suzanna M.
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Wow I brought my daughter here for a free consultation and I'm so pleased with my experience. The staff were so kind and made us feel comfortable right away. Dr. Walsh went over everything with us in a way we could understand and listen to our concerns. Would highly recommend this office to anyone looking for an orthodontist!

Anne T.
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Digital Xray machine

World-Class Care

Our Technology

At Great Bay Orthodontics, we use cutting edge technology to ensure an exceptional, efficient treatment experience that suits your unique needs. By investing in best-in-class technology such as the IO Scanner, digital X-rays, and impression-less orthodontic treatments, we are able to ensure a completely digital and minimally invasive experience from start to finish.

Great Bay Orthodontics Gives Back

Advocating for our Furry Friends

It’s safe to say our team loves the animals that make us smile, day in and day out. That’s why we’re proud to support The New Hampshire Society for the Prevention of Cruelty to Animals, a local non-profit organization on a mission to save the lives of companion animals through rescue, rehabilitation, and adoption. With every new patient that joins the practice, we donate back to the NH SPCA directly to help provide food, shelter, medical care, and other essential supplies to rescued animals seeking their forever home! Dr. Walsh and his wife rescued their dog, Stella, and want every pet on the Seacoast to find the safe, loving family they deserve. We hope each appointment makes you smile knowing that Great Bay Orthodontics truly cares about every four legged friend in our community!

Dr. Walsh's Rescue Dog
Office "Lab" Assistant

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