3305 N Ballard Rd Ste D

Appleton, WI 54911-9001 US


John G. Masak, D.D.S.

Dr. Masak has been practicing dentistry in Appleton since 1988, in a practice that has served the Fox Valley since 1904. He is only the third owner, and some of his patients have been treated by all three dentists over the years!

Dr. Masak is a graduate of Appleton West High School, and studied at U. W. Eau Claire prior to graduating with a DDS degree from Marquette University, in 1986. He has been very active in the Appleton community, serving as a volunteer provider of care and member and president of the Board of Directors at the Tri-County Community Dental Clinic, and as a dental care provider at the Wisconsin Mission of Mercy events. Dr. Masak has also represented his peers and the patients of the state of Wisconsin as a volunteer leader for the Wisconsin Dental Association and American Dental Association, serving on several committes, and as a member of the WDA's Board of Trustees. The profession of dentistry is a passion for Dr. Masak!

Dr. Masak and his wife Connie, a nurse pratitioner, have two grown children. Their daughter Lauren is an officer in the United States Navy stationed in Hawaii, and their son Reid is an entertainment booking agent living in New York.

Dr. Masak and his team have one goal: Help all of our patients "Smile On"!


Drae Jonas - Office Manager
Greetings! I was new to the dental field prior to joining our team in 2013 but was quick to learn. I am your go to person for appointments, insurance, and any questions or concerns you might have. I try and provide a positive, professional, caring environment for our patients. I can guarantee you will always be greeted with a smile!
At the center of my heart, you can find my 3 boys, Shaw, Cole, and Rhett, who keep me very busy outside of work. I love to hunt for "treasures" and I'm quick to pull over for an antique store, flea market, or estate sale. Most of my weekends are spent road tripping or enjoying outdoor activities,ie, hiking, kayaking, camping, boating, snowmobiling, snow skiing, and exploring new areas. You may also find me bartending at "Two of a Kind" in Dundes on weekends serving up the best bloody's! I love attending outdoor music events and helping serve my community - if you have details for either don't hesitate to share!

Emily Tegen - Dental Assistant
Hey everyone! My name is Emily, and I'm Dr. Masak's dental assistant. We've been a team for almost 2 years, and I enjoy every moment of it. I have over 9 years of dental experience, from periodontal/oral surgery assisting to front desk experience. I enjoy all aspects of the job!
I grew up in Green Bay, Wisconsin, and moved to Appleton about 15 years ago where I met my husband, Kirk. We have a 13-year-old son, Jackson. One of my favorite things to do is hang out with my boys. I also enjoy weight training at the local gym, walking/hiking, traveling, and going to the movies. We recently built a house, so we will be spending the next few years making it our forever home. People don't necessarily enjoy going to the dentist and I understand that! I hope my entertaining and positive attitude will make your experience here a little more comfortable (and even FUN!). Give us a call to schedule your next appointment because I can't wait to meet you!

Lisa Kraus - Dental Hygienist
Hi! My name is Lisa, and I am one of Dr. Masak's hygienists. When I first started working for Dr. Masak I was only part-time and filled in when needed. I loved it here so much that in June of 2017, I came on full-time. At Dr. Masak's we're like a family- we enjoy each other's company, and the office atmosphere makes an enjoyable place to work. I hope that when you come in for a visit, you feel that too.
My family and I have lived in Neenah for the past 20 years. I've been married to my husband, Jake, for 25 years. We have 3 amazing children together, Jack, Kayla, and Kierstin. My hobbies include working in the yard, gardening, feeding and watching the birds, and watching sports (especially volleyball and hockey). I absolutely adore dogs and have enjoyed fostering them over the past few years. Feel free to share your fur baby pictures with me at your next visit!

Shelley Gessler - Dental Hygienist
Hello! My name is Shelley and I have been with our team as a hygienist since 2004. I am a 1984 graduate of NWTC in Green Bay and have been practicing since then. I was raised in Sheboygan and married my husband, Tim, also a Sheboygan native. Tim and I have our 4 boys: Paul, Phillip, Peter, and John. In 2014 Paul married Elise. They now have 2 children - Ava and Luke. I can say without a doubt my favorite job is playing the role of Grandma!
Outside of work, our family enjoys hiking, biking, and watersports in the warmer months and cross-country skiing and snow shoeing in the winter. We spend much of our down time at the cabin on Otter Lake in the UP of Michigan. I have also enjoyed numerous trips to some of the U.S. states, Europe and Mexico. I can't wait to share some of those stories with you at your next visit.