Mark Grossklaus, MD

Family medicine
Patient Rating
5 / 5 (Based on 195 reviews)
Read reviews | About reviews

Schedule an Appointment

262-542-9100
Current patient online scheduling
Accepts new patients 17 years and younger only Insurance accepted

Mark Grossklaus

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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.”

Gender

Male

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

Education

Medical School

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

Residency

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

Certifications

Board Certifications

Family Medicine

Reviews

December 29, 2025
I highly recommend this office. They are kind, courteous and really listen to your issues. Dr. Grossklaus is fantastic!!!
December 17, 2025
Great
December 15, 2025
Good visit
December 8, 2025
Excellent & convenient facility. Excellent staff ... Professionally and personally.
December 3, 2025
Seeing Dr. Mark is always a pleasure.
December 1, 2025
Parking lot entry should have an awning for when dropping off patients. In bad weather. You need a scale for people in wheelchairs, or other.
November 24, 2025
Dr. Grossklaus an excellent doctor. Very helpful on all occasions.
November 19, 2025
I have gone to Dr. Grossklaus for many years. He is a very nice doctor
November 19, 2025
Dr. Grossklaus is a wonderful doctor. I've gone to him for a long time.
November 19, 2025
The whole experience was great. Doctor Grossklaus and his staff are always very friendly and professional.
November 17, 2025
My yearly physical with Dr. Grossklaus and his staff was wonderful. Complete coverage of all past and present issues/concerns! Full explanations of any potential red flags physical or blood work! He was reassuring and as always made me feel good about where I am at and giving suggestions to make improvements!
November 17, 2025
As my PCP recently retired, Dr. Grossklaus saw me on short notice after I fell and broke my wrist. He was easy to talk to and helped me find follow-up care I needed. I would be happy to work with him again in the future.
November 12, 2025
I am very happy with Dr. Grossklaus and his team. Any of my ProHealth Care providers have always given superior service, attention and communication.
November 10, 2025
Have been seeing Dr. Grossklaus for many years and hope to continue to be able to do so in the future.
November 3, 2025
All staff were wonderful, friendly, and professional. Dr. Grossklaus is an excellent physician, very knowledgeable, compassionate, and funny.
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