info@activechiropractic.us       (608) 783-3307


Dr. Mark Cassellius, Doctor of Chiropractic

Dr. Mark Cassellius – Doctor of Chiropractic

I am a graduate of Northwestern College of Chiropractic. After graduation I practiced in southeast Minnesota before relocating to the La Crosse area. I have been practicing in the Coulee Region for more than 30 years. I am a member of Rotary, Onalaska Area Business Association and have been on the Onalaska School Board for 18 years. My certification in Nutritional Counseling was earned in 2008. I am a member of the Wisconsin Chiropractic Association, serving as District President several years. Additionally I am licensed to practice in South Dakota and Minnesota.

My wife Cindy and I live in Onalaska. Our daughter Brescia,  her  husband Dr. Joe Berg  and our grandchildren live in Mt. Horeb WI.

Jackie Bachmann, Clinic Manager

Jackie – Clinic Administrator

I have over 30 years of experience working at various medical receptionist positions. For the last 18  years I have enjoyed a career in Chiropractic,  the last 10 years as the Clinic Administrator for Active Chiropractic.  I grew up in Madison and moved to the La Crosse area 19 years ago. My husband Ray and  I live in Trempealeau. I enjoy spending time with my three children and 7  grandchildren, warm afternoon drives in my Volkswagen Bug and Green Bay Packer games. I have been a volunteer at Chasing Daylight Animal Shelter in Tomah WI for over 5 years.

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