Mark Grossklaus, MD

Family medicine
Patient Rating
5 / 5 (Based on 174 reviews)
Not currently accepting new patients Insurance accepted

Mark Grossklaus

About me

Philosophy of care

“I enjoy caring for individuals of all ages, which provides the opportunity to treat entire families. I like the challenge of pursuing a diagnosis and identifying a course of treatment to help my patients feel better.”



Hobbies and Personal Interests

Dr. Grossklaus is married with three children and a dog. He enjoys spending time outdoors, biking and fishing. Dr. Grossklaus regularly competes in biathlons and annually in the American Birkebeiner’s signature ski race in Hayward, Wisconsin. He is also a professional driving education instructor at Road America.

My location

Medical education


University of Wisconsin School of Medicine and Public Health, Madison, WI


Mayo Clinic-Franciscan Healthcare, St. Francis Medical Center, La Crosse, WI


Board Certifications

Family Medicine


November 1, 2021
I think the question about if the medical talked to me about my prescription drugs in the last 3 months confusing. I talk about my prescriptions once a year at my physical only. If I have other questions, I just ask a pharmacist.
October 29, 2021
Dr. Grossklaus is by far one of the best physicians in the medical field. He is extremely caring and is always there for our family! We love him! 10+++.
October 29, 2021
Have always had good experiences with Dr. Grossklaus and ProHealth.
October 18, 2021
Dr. Grossklaus goes the extra mile to explain all treatment options and together we agree on a path forward plan and assess the results at the next visit
October 13, 2021
Very pleased. Dr Grossklaus is always honest, responsive and prioritizes my health needs respectfully. Also, all PAs and reception staff are exemplary. Hope this makes sense
October 11, 2021
Nothing bad to say. All is good
October 11, 2021
I received excellent care from everyone from the front office to the entire medical staff and Dr. Grossklaus. Keep up the good work because this is what I expect.
September 29, 2021
When trying to set up next appointment, the receptionists were on their phone and didn't notice me until I said something, then they seemed annoyed that I was talking to them.
September 22, 2021
Dr. Grossklaus mapped out a plan of action that made sense and provided peace of mind.
September 22, 2021
September 17, 2021
My only negative comment is with scheduling the appointment. When I went online through My Chart to schedule, there appeared to be several times available to schedule. But when I tried to change my appointment to an earlier date by calling, I was told (two different calls) that there was nothing available earlier. I don't trust the online scheduling, so I kept the original appointment, but there Is a flaw here somewhere.
September 13, 2021
Good! Always helpful.
September 13, 2021
Office & staff practiced excellent COVID protection measures.
August 20, 2021
They got an appointment for this urgent need scheduled very quickly. I was actually a little over 10 minutes late arriving, and everyone still accommodated getting me in. I am very grateful for that.
August 18, 2021
Received very good care from Dr. Grossklaus Following a Covid hospital stay.
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