About Us
We are located in Neenah, Wisconsin and serve patients throughout the state of Wisconsin since 1991. We are confident that you will find our practice to be a unique and pleasant experience. We truly enjoy our patients and we think you will see this reflected in each and every visit to our office. It is our goal to make you and your family comfortable, excited and confident as you experience the transformation in your smile. We believe in a team approach and in helping our patients - children, teens and adults - to be the best that they can be in providing a healthy happy smile that will last a lifetime.
We are committed to providing the highest level of orthodontic treatment possible and to achieving beautiful, balanced smiles that last a lifetime. And because today’s orthodontics is much more than straight teeth, we are also committed to providing our patients with long-term, stable, functional smiles with optimum facial harmony.
Meet Our Doctors
Dr. Marissa Keesler is a specialist in the field of orthodontics. She received her Doctor of Dental Surgery degree in 1987 graduating magna cum laude. Dr. Keesler attended dental school at Creighton University in Omaha, Nebraska. In 1989, she graduated from Marquette University with a certificate and a Master of Science degree in Orthodontics, obtaining the highest distinction from orthodontic school as well.
Dr. Keesler has been an adjunct professor in the Marquette Graduate Orthodontic Department for over 10 years. She speaks fluent Spanish and lectures nationally and internationally on various orthodontic topics. Dr. Keesler is a member of the American Association of Orthodontists and many other local and national dental and orthodontic societies such as the Edward H. Angle Society of Orthodontists and the Pierre Fauchard Academy. Dr. Keesler is also among an elite group of orthodontists worldwide achieving Diplomate status by the American Board of Orthodontics. She has been in specialty practice since 1989 and has had a full-time private practice in the Fox Valley since 1992. Several of her research and clinical work has been published in orthodontic journals and university textbooks.
In her free time, she enjoys playing tennis and playing the piano. Dr. Marissa and her husband, Dr. Jeff, enjoy all kinds of summer and winter activities that allow them to spend time with their son, Calvin and twin daughters, Halle and Dana.
Dr. Jeffrey T. Keesler, a native of the Fox Valley area, is a specialist in the fields of orthodontics and prosthodontics. He received his certificate and Master of Science degree in both Orthodontics and Prosthodontics from Marquette University, where he graduated with honors.
Dr. Keesler brings his knowledge of complex bite problems, facial esthetics, missing permanent teeth, dental implants, temporomandibular disorders and multi-disciplinary dentistry to Keesler Orthodontics. He is one of only several orthodontists internationally to have earned a master’s degree in both orthodontics and prosthodontics. Dr. Keesler has been in specialty practice since 1990 and is involved in several prestigious study clubs. He is a member of the American Association of Orthodontists, the American College of Prosthodontists and many other local and national dental associations such as the Pierre Fauchard Academy. Dr. Keesler is well qualified to provide orthodontics for patients that may be receiving additional dental work with their family dentist after their braces are removed.
In his spare time, Dr. Jeff enjoys running, hunting and fishing. He also loves spending time with his wife, Dr. Marissa, and their 3 children, Calvin, Halle, and Dana.
Meet Our Staff
Selena joined the Keesler Team in 2003 and earned her Bachelor Degree from the University of Wisconsin-Oshkosh. Her easy going personality and ability to talk to anybody makes our patients feel at home.
Selena lives in Darboy with her husband. She enjoys going up north to her cabin, kayaking, snowmobiling, exploring the trails of Wisconsin and spending time with her family and friends.
Keesler Orthodontics welcomed Nicole to our team in 2010. Her knowledge and ability to multi-task helps the front office run efficiently.
Nicole lives in Appleton with her daughter and cat, Goldie. She enjoys going up north to her family cabin, reading and watching movies.
A native to Neenah, Michelle started her journey with our team as an intern in 1999 and has been with us ever since! Her outgoing and fun-loving personality make her the perfect person to greet you at your first visit.
Michelle lives with her husband, two daughters and their five cats. She enjoys time in the kitchen, camping and spending time with neighbors, friends and family.
Kris brings over 25 years of orthodontic experience to our practice. Kris has a friendly, fun and outgoing personality that makes everyone feel comfortable.
Kris lives in Combined Locks with her husband, daughter and son. Kris enjoys the outdoors, fishing at the cabin, jogging, biking and going for walks.
Sonia has been a part of the Keesler Team since 2013 and earned her Dental Assistant Degree from The Wisconsin Dental Assistant School. Sonia’s bright personality and ability to speak Spanish bring a unique combination to our practice.
Sonia enjoys spending time with her nieces and nephews, traveling with her husband, and visiting family and friends in Mexico.
Sam first came to Keesler Orthodontics as a patient when she was 10 years old and came back to join our team in 2017 after earning her Bachelor Degree from University of Wisconsin-Stevens Point. Her approachable and caring smile is a welcoming first impression to anyone visiting our office.
Sam lives in Hortonville with her husband, daughter, and son. She enjoys going up north, out fishing her husband, and spending time with her family.
Linda has worked in the orthodontic field for over 20 years and has been a part of our Keesler Team since 2003. Linda’s silly and fun personality always keeps smiles on everyone’s faces.
Linda enjoys boating with her husband, kids and grandkids at their cabin in St. Germain. When she is not at work you can find her walking, skiing, and doing art projects.
Ellie joined the Keesler Orthodontics team in 2019 and has been a great addition. Her team player skills and bright personality make her an amazing asset to both our clinical and administrative teams.
Ellie lives in Appleton with her husband, son, daughter, cat and dog. She enjoys photography, going up north and hanging out with friends and family.
Keesler Orthodontics welcomed Jordan to our team in 2019 with over 5 years of orthodontic experience. Jordan’s fun personality and orthodontic knowledge make her a valuable part of our team.
Jordan enjoys traveling, trying new restaurants and boating with friends and family.
Mary joined the Keesler Orthodontic team in 2021 and immediately jumped right in. Her quick learning skills, willingness to help and ability to speak Spanish make her an incredible asset to our administrative team.
Mary lives in Menasha with her husband, their three daughters, cat and two dogs. She enjoys baking delicious and beautiful cakes, exploring different parks around the state and spending time with her family.
