Our Team

Quality Dentistry by Caring People



Dr. William Mauthe III

Bill, born and raised in Fond du Lac, attended Indiana University for undergraduate studies in business, Finance and Management and then Marquette University for dental school. He and his wife Sarah were married in 1997 and have two daughters and a son. Dr. Bill has taken continuing education classes specializing in cosmetic dentistry, TMJ disorder, Invisalign, and laser treatment. He is active in local, state, and national dental organizations and is a member of the Wisconsin Dental Association (WDA) and the American Dental Association (ADA).


Dr. Mike Messer

Dr. Mike Messer is originally from Manhatton Beach, California. He graduated from Marquette School of Dentistry in 2010 and has been practicing in Wisconsin his entire career.   Dr. Mike is excited to join Mauthe and Associates as a partner.  Dr. Messer is now providing orthodontic services at the practice and has taken continuing education in Invisalign and impants.  His affiliations include the Wisconsin Dental Association and the American Dental Association.  He lives close to Fond du Lac with his wife and 4 children.


Dr. Annie Wallander

Dr. Annie Wallander is from Appleton, WI. She traveled south and completed her undergraduate degree at Clemson University in South Carolina. In 2010, she graduated from Boston University’s Dental School and went on to complete a one-year residency at Marquette. After completing her residency she worked in an office for eight years prior to starting at Mauthe and Associates. She currently resides in New Holstein with her husband, Seth, her two children Sawyer and Paige and their two dogs. Outside of work during her free time, Dr. Annie likes to travel, go camping with her family, yoga, and running. Dr. Annie is excited to work for Mauthe and Associates and to become a part of the Fond du Lac community.


Dr. William Mauthe

Dr. Mauthe has now retired as of January 1st, 2018. He practiced here in Fond du Lac for over 40+ years and helped thousands of patients in that time. He saw dentistry undergo a plethora of changes and is proud to know that this office will keep up with the changes in this new millennium. He made a commitment to continually update our techniques and services with continuing education and we are happy to carry on that legacy. We are very lucky to have had him as a guiding hand in the way we practice dentistry here at this office and he will be missed. With his newly found extra time, he will be able to spend it with his wife, kids, and grandkids.

Front Desk


Dental Assistants