Mergen Orthodontics Of Iowa City, IA

Orthodontist, John Mergen D.D.S. M.S.

Iowa City, Iowa’s Top choice for Clear Braces and Invisalign

orthodontist dr mergen iowa city iaDr. Mergen is devoted to creating amazing, “Mergen Orthodontic Smiles”. His signature smiles are said to change the life of his patients. He is known for his dedication to providing patients with exceptional service and advanced clear options that always exceed their expectations. Dr. Mergen creates a fun, relaxed environment where patients love to visit. The treatment options that Dr. Mergen offers are less obtrusive (clear) and he operates in a very efficient manner in order to make orthodontic treatment, “short and sweet”. Being a second generation orthodontist, Dr. Mergen has followed in his father’s footsteps in providing excellent care to every patient. He helps to change his patient’s lives by improving their smiles which improves self-esteem! He helps mentor high school teens that have interest in the field of orthodontics by allowing job shadowing in his practice. Dr. Mergen finds great joy in showing his patients their original photos to see their reaction on the day the braces come off. It is an amazing transformation…so much more than just a smile!

Outside The Orthodontics Office

Dr. Mergen loves having fun and spending time with his wife and two boys. His favorite sports are windsurfing, surfing, kiteboarding, wake boarding, boating, snowboarding, and snowmobiling.

Background and Education

Dr. Mergen’s interest in orthodontics started in high school when he made retainers in his father’s orthodontic practice. He was so excited about the field of orthodontics, he committed to an accelerated 3-year honor program with the University of Iowa College of Dentistry. He earned his Doctor of Dental Surgery from the University of Iowa in 1995, graduated with honors and 2nd in his class of 87. Then, Dr. Mergen accepted 1 of 5 spots into the top orthodontic graduate program in the country at the University of Iowa College of Dentistry and earned his Master’s in 1997. Dr. Mergen is dedicated to advancing orthodontic care and service for his patients. His has a specialized interest in Invisalign orthodontics earning him the Elite Invisalign Specialist status.

Academic Awards

Professional Associations

Professional Publications


Phone Number:

(319) 688-0800

E-mail Address:


Orthodontics Office:

Mergen Orthodontics
1570 Mall Dr. Suite 1
Iowa City, IA 52240

Your Top Rated & Favorite Orthodontists

Our son has a LOT of anxiety about visiting ANY doctor, and Excellence In Orthodontics has made the transition into the orthodontics world a VERY easy and painless experience for our family. Thank you for all that you do to bring beautiful smiles to our family and many many more!
Donna L.
Orlando, FL
I love the doctors and staff recommended by Excellence In Orthodontics! All very knowledgeable and always very pleasant at each appointment. They consistently run on time, which is very rare with doctors these days. They are also very willing to work with you on billing arrangements so you can afford a financial burden like braces. I never would have found my Orthodontist without the help of Excellence In Orthodontics!”
Maria R.
Houston, TX
Excellence In Orthodontics is absolutely amazing! My daughter sees an orthodontist recommended by Excellence In Orthodontics and she has never had a bad experience with them at all. I highly recommend Excellence In Orthodontics!
Bethany C.
Grand Rapids, MI
Excellence in Orthodontics has been a great resource to find the best orthodontist for our daughter. The experience with the orthodontist has been better than we ever expected.
Mary J.
Phoenix, AZ
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