Mark Grossklaus, MD

Family medicine
Patient Rating
5 / 5 (Based on 157 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


April 18, 2022
Phone visit so reception questions didn't pertain.
April 13, 2022
Dr Grossklaus has been my primary physician for 20-25 years. He has always had good advice and recommendations for my health concerns. He is very patient, friendly, a good listener and helpful.
March 16, 2022
I love Dr Grossklaus and his staff including the lab and X-ray. They are all very professional and caring people. I Al very happy with this team and will recommend them always.
March 4, 2022
Dr. Grossklaus is an exceptional family doctor. If not for him, we wouldn't have detected my colon cancer as early as we did. He, in my opinion, saved my life.
February 28, 2022
Everything from this provider has always been EXCELLENT.
January 26, 2022
Dr. Grossklaus provides wonderful care. Have complete trust in him.
January 26, 2022
Dr Grossklaus is the best, very nice & is a very caring Doc.
January 25, 2022
All good. Very helpful with preventive care
January 18, 2022
Dr.Mark is an excellent doctor. He listens & is makes things easy to understand.
January 14, 2022
Everything was excellent, but at the receptionist desk there was a good sized drop of what looked like spit on the counter. As a result, I did not sit down, worried slightly about there being a pathogen there, was more distracted and didn't attend to the receptionist as well as I could. I'm, not faulting anyone. Maybe wiping down the counter after patient use given the pandemic we are experiencing now. Thanks
January 12, 2022
Mostly good - thanks to ALL.
January 12, 2022
It was my first Medicare annual visit.Mark was very thorough.
January 12, 2022
Everything was great. Dr Grossklaus is a very caring and informative doctor.
January 10, 2022
Everything went fine.
January 10, 2022
I am thankful and fortunate to have the care, concern and expertise of Dr. Mark Grossklaus as my primary care physician for the last nine years.
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