Meet the Doctors

Dr. Mike Gavin

Dr. Michael Gavin is a native of Onalaska and graduated from Onalaska High School in 1982 graduate. He is a graduate of Gustavus Adolphus College and the University of Minnesota Dental School. After receiving his dental degree, Dr. Gavin trained three years in the U.S. Navy Dental Corps. While on active duty, Dr. Gavin served in the Naval Dental Center in Florida and North Carolina. During his tour of duty with the Navy, Dr. Gavin was also attached with the United States Marine Corps. It was during that time Dr. Gavin was deployed to Guantanamo Bay, Cuba to provide humanitarian dental care to Haitian immigrants. Dr. Gavin has been practicing dentistry since 1990 and began building the Valley Dental team in 1993. He is married with three children and in his free time enjoys being involved with his children’s activities. He also has a passion for endurance athletics.




Dr. Kevin Holly

Dr. Kevin Holly was born and raised in Ashwaubenon, WI. From there he studied biology at the University of Minnesota-Twin Cities. He then continued his education at Marquette University where he earned his Doctor of Dental Surgery (DDS) degree. He is a member of the American Dental Association, Wisconsin Dental Association, La Crosse District Dental Society, the Academy of General Dentistry, and the American Orthodontic Society. When Dr. Holly is not treating patients he enjoys being active. He met his wife Kelly while they were both on a trip to Tanzania from the University of Minnesota. He continues to share a passion for travel and adventure. He loves spending time with his two sons Jax and Jordy and the family dogs, Indigo and Willow. Dr. Holly is an avid Packers fan and enjoys swimming biking and running. He is excited to call Onalaska his home and joined the Valley Dental team in 2017.




Dr. Shaina Rennegarbe-Day

Dr. Shaina Rennegarbe-Day was born and raised in southern Illinois. For her undergraduate degree, Dr. Day played women’s golf at Southern Illinois University (SIU) of Carbondale, where she studied biology and chemistry. Following her undergraduate degree, she attended Southern Illinois University School of Dental Medicine to earn her Doctor of Dental Medicine degree. She is a member of the Wisconsin Dental Association, American Dental Association, La Crosse District Dental Society, the Academy of General Dentistry and the American Orthodontic Society. Dr. Day and her husband moved to the area in 2017 and love spending time with their dog and being outdoors. Dr. Day enjoys college basketball and her favorite time of the year is March Madness followed by The Masters. She is enjoying being a part of the La Crosse area community and Valley Dental team.




Dr. Eric Stull

Dr Eric Stull is a native of Milwaukee, WI. He attended the University of Missouri where he earned his degree in Biology. He then went on to attend University of Missouri – Kansas City School of Dentistry. Shortly after he returned to Wisconsin where he practiced in La Crosse for close to a decade before joining the Valley Dental team in 2019. Dr. Stull’s clinical interest is in dental implants, oral surgery and advanced restorative work. He has previously served as president of the La Crosse District Dental Society and has had leadership positions with the Wisconsin Dental Association. Dr. Stull is married and has a young daughter named Andie. In his free time he enjoys adventures with his family, mountain biking and playing golf.





Our Team

Beth | Dental Assistant

“As a Dental Assisting student at Western Technical College in La Crosse, I was placed at Valley Dental for my summer semester clinical. After graduation, I was fortunate enough to get hired on the Valley Dental team, and the rest is history! Since then, I have been assisting for Dr. Gavin since 1999. Having been born and raised in Onalaska, it has always been such a pleasure to work in the community I grew up in. I enjoy seeing all the familiar faces, and meeting new people each day. I love my job because I get the chance to make a difference in people’s health, and help them feel confident about their smiles.”


Dawn | Dental Assistant

“I had been a dental assistant for 17 years before relocating to Onalaska where I joined the Valley Dental team in July 2013. I’m very excited to contribute to a rapidly growing practice. One thing that I love about being a dental assistant is meeting new patients and building relationships with each one of them. Working with the staff at Valley Dental has been a great pleasure and I’m looking forward to being a part of this team for many successful years to come.”




Holly | Dental Assistant

“I graduated from Western Technical College with a Dental Assisting degree. Since then I have worked in the dental field for 20 years as a pediatric dental assistant. I came to Valley Dental in 2014 looking for a new adventure. I’m very excited to meet new people and learn new things. The staff at Valley Dental have been welcoming and I’m very proud to be a member of their team.”





Susan | Dental Assistant

“I was born and raised in Onalaska, WI and am happy to call the coulee region my home. I graduated from Western Technical College with a Dental Assisting degree and have been working in the dental field since 1990. I have experience in several specialties including pediatrics, oral surgery, and orthodontics. I joined Valley Dental in 2001 and am blessed to be a part of this dedicated and skilled team. When I’m not at work I keep busy with my 2 puppies, spending time with my adult children, and enjoying my ‘empty nest’ with my husband.”



Kelly | Dental Assistant

“I graduated from Western Technical College with a Dental Assisting Degree and have been working in the dental field since 1991. I joined the Valley Dental team in 2019 ready for a new adventure. I love dental assisting because it gives me the opportunity to help patients and develop new relationships. When I’m not working, I spend time with my husband and 6 children. They keep me busy with their sporting events!” 




Clare | Dental Assistant

Photo and Bio coming soon!

Kim | Registered Dental Hygienist

“I have been practicing dental hygiene for 25 years and have been here at Valley Dental since 2009. One of my favorite aspects of working here is the ability to provide the highest quality care to my patients and the support to do just that. My co-workers are some of the most knowledgeable, compassionate, caring and fun people I know. While always keeping our focus on our patients and our work we manage to have a lot of fun which makes Valley Dental a great place to work!”




Erin | Registered Dental Hygienist

“I have been working as a dental hygienist for 15 years and have been here at Valley Dental since 2005. Over the years I have had the opportunity to work in many offices and without a doubt being at Valley Dental has been the best one. I love how everyone here is truly dedicated to giving the best care possible to our patients. Our #1 goal is to make the dental experience here a wonderful one!”





Alyssa | Registered Dental Hygienist

“I am a 2010 graduate of the dental hygiene program at Western Technical College. I joined the Valley Dental team in 2013. Valley Dental provides excellent, quality care to each and every patient. I am devoted to making patients’ dental experience positive, comfortable and at ease. My commitment to each patient is foremost. I am very happy to be a part of the dedicated and caring group at Valley Dental.”




Lory | Registered Dental Hygienist

“I graduated Western Technical College’s Dental Assisting program in 2001 and then returned to WTC and completed the Dental Hygiene program in 2005. I joined the Valley Dental team in 2014. I truly enjoy being apart of the Valley Dental family! When I’m not working you can find me spending time with my three children and my husband. ”



Samantha | Registered Dental Hygienist

“I have been a patient at Valley Dental my whole life and the practice has played a huge roll in my decision to become a registered dental hygienist. I received my bachelors of science in dental hygiene from Minnesota State University-Mankato. I am excited and proud to join the Valley Dental staff full time as of 2017, and to use my education to improve the community’s health and well being. My favorite part of being a dental hygienist is meeting new people every day and working with them to ensure they have the best possible dental health. I look forward to making patients feel comfortable and ensuring they have a positive experience here at Valley Dental like I did growing up.”


Jena | Registered Dental Hygienist

“I graduated from Rosemount Community College as a dental assistant in 2000. I went back to school to be a dental hygienist, graduating from Rochester Technical College in 2004. After 15 years in the dental industry, I can honestly say ‘I love my job!’ My biggest reward is helping patients get a healthy mouth! In my spare time I’m usually chasing after my 4 children, staying involved in all of their activities! You can also find me on the golf course or on the river! I am so proud and excited to be apart of the Valley Dental team. My patients are not just patients; they become like family. I can’t wait to meet you and start our dental journey together!”


Kristina | Business Manager

“I graduated from Rochester Community and Technical College in 2010 from the Dental Assisting Program. I am excited to compliment Valley Dental with 5 years of experience in the dental field. One of my passions is to help patients smile again by enhancing their qualify of life. Joining the team in November 2013, you can expect me to be one of the friendly voices on the other line answering any questions about billing and insurance. I look forward to learning more about the current patients and meeting the new ones!”


Kelly | Scheduling Coordinator

“I’m the Scheduling Coordinator here at Valley Dental. I graduated from MATC-Madison in 2009 from the Dental Assisting Program. After multiple years in the Dental field, I am excited to bring my skills to the Valley Dental Team as of 2015. I am an avid runner and fisher. I recently completed my first half marathon, and am currently training for my second. House hunting is something I love to do in my free time. You can find my bright smile up at the front desk. I am looking forward to getting to know patients and their families here at Valley Dental!”


Brittany | Marketing and Human Resources Coordinator

“I’m the Marketing and Human Resources Coordinator here at Valley Dental. I graduated from UW-La Crosse in 2014 with a Bachelors degree in Business Management and a Marketing emphasis. I am so happy to be apart of Valley Dental’s amazing team! I love to travel; my next big trip will be back to Hawaii! I’m an avid hockey fan and really enjoy catching a Wild game in my spare time. In the summers, you’ll find me on the pontoon soaking up the sunshine! I look forward to meeting all of our patients; current and future!!”



Office Tour

Our goal is to ensure that your experience exceeds your expectations in a dental office that is warm, friendly and relaxed. We take pride in our work and give you the best and most effective dental care possible. Staying on top of the latest treatments and methodologies, Valley Dental continues to make the dental experience better.