Timothy Wassenaar, MD

Hematology
Patient Rating
5 / 5 (Based on 273 reviews)

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Timothy Wassenaar

About me

Philosophy of care

“My goal is to deliver personalized, compassionate and family-focused care to my patients. I have an interest in clinical research and have been awarded several research grants and studies, which provide my patients with clinical research opportunities.”

Gender

Male

Hobbies and Personal Interests

Dr. Wassenaar is married, and he enjoys spending time with his family, biking and running marathons.

My locations

Education

Medical School

The Chicago Medical School, Chicago, IL

Residency

University of Wisconsin Hospital and Clinics, Madison, WI

Fellowship

University of Wisconsin Hospital and Clinics, Madison, WI, Hematology

Certifications

Board Certifications

  • Hematology
  • Palliative medicine

My Videos

Reviews

August 25, 2025
We are so very grateful for Dr. Wassenaar and his staff. Dr. Wassenaar is incredibly gifted doctor.
August 22, 2025
I always have a good experience. Everyone is so friendly and caring. Thank you all for what you do.
August 20, 2025
It was good
August 20, 2025
Love this doctor and staff, always wonderful and caring.
August 11, 2025
Pleasant and informative. Helpful.
August 1, 2025
Lab tests and follow up with Dr. Wassenaar were all a pleasant experience from checking into drawing blood to Dr. Wassenaar follow up. I COULDN'T have been treated with more respect or concern. Thank you to all!
July 25, 2025
Always a good experience.
July 22, 2025
Could not live without him.
July 9, 2025
Very pleased with all the staff - both professional and administrative - at the ProHealth Care Cancer Center & the Urgent Care facility in Pewaukee. They were personable, kind, and competent.
July 8, 2025
Very satisfied
July 8, 2025
Excellent experience
July 8, 2025
OVERALL EXCELLENT EXPERIENCE.
July 2, 2025
I love all my doctors that I see with Pro Health, the only problem I have is my dermatologist, she is so hard to get in to see.
July 2, 2025
Dr. Wassenaar & his staff are the BEST.
July 1, 2025
Doctor was thorough and did not rush through my appointment. Receptionists in the building were very polite & helpful in directing me where to go.
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