About Our Administrative Staff


Mary has been working for Janssen Dental Clinic since 1996. Through the years she has had great opportunities to expand her knowledge in the dental, TMJ, cosmetic, sedation, implantology and custom-made mouthguard fields. Mary has also completed additional education in the study of laser and aesthetics to advance our sister company NEW Laser. Mary holds degrees from Gill-Tech Academy, Rocky Mountain Laser College and Fox Valley Technical College. When she is not working, Mary enjoys spending time with her three children, curling and catching as many Bullfrog games as possible.


Amanda has been with Janssen Dental since 2005. Through the years Amanda's had the opportunity to work in almost every capacity in the office. With her history and experience at Janssen Dental, Amanda assists Dr. Craig and Mary maintain a comfortable and smooth running office.

Amanda is our medical billing specialist and deals with all cases sent to medical insurance. Amanda received her Aesthetics degree in 2013 and became a Certified Laser Operator in 2012 through the National Council on Laser Excellence. With Amanda’s continued education, she has expanded our sister company, NEW Laser which specializes in the treatment of nail fungus. In the future she would like to see NEW Laser progress as much as Janssen Dental has.

When she’s not working, Amanda enjoys spending time with her three dogs Dudley, Bud and Brewer. She also loves outdoor winter activities like snowshoeing, downhill skiing, cross country skiing, and snowmobiling. But Amanda's favorite pastime is, of course, cheering on the Packers.

About Our Front Desk Staff


Courtney has been working in the dental field for 21 years and has had experience in both the front and the back of the office. She loves being a part of putting a smile on someone's face. Her hobbies include going up north, fishing, and spending time with family and friends.

About Our Dental Assistants


Since graduating from Fox Valley Technical College in 2009 with a technical diploma in dental assisting, Ashley's applied her talents at Janssen Dental. After working as a cosmetologist for seven years, she has the ability to make patients calm and at ease during appointments. In her free time, Ashley enjoys spending time with her husband Greg and family (including nieces and nephews). She loves fall weather and enjoys doing outdoor activities like hunting, biking and hiking.



Bio Coming Soon


About Our Hygienists


Kaitlin is a beloved addition to our Janssen Dental family. She has always loved dentistry and is excited to be working in the dental field. She aspires to make every patient feel at home when they walk through the door. In her spare time she enjoys hiking, fishing, and being with her friends and loved ones.


Emily has been working at Janssen Dental for as long as she can remember. She is always available when and where she is needed, whether it's at the front desk or in the back. She has worked as a hygiene assistant, up at the front desk as our receptionist, and now as our office assistant helping our office run as smooth as possible. In her spare time, Emily enjoys spending time with her family and enjoying the outdoors up north.

Contact Us

2649 Development Drive
Green Bay, WI 54311
New Patients: 920.202.5015
Current Patients: 920.983.8383
Fax: 920.983.2862

About Dr. Janssen

Dr. Craig Janssen is proud to be one of the leading dentists in the area practicing sedation dentistry. No longer do your fears need to keep you from the denstist. Our highly trained staff will help bring your smile out every step of the way.