Summary

Dr. Timothy Wassenaar is an oncologist and hematologist who specializes in hospice and palliative medicine. He earned his medical degree from Chicago Medical School at Rosalind Franklin University of Medicine & Sciences and completed his residency at the University of Wisconsin Hospital. With 24 years of experience in cancer care and blood disorders, Dr. Wassenaar brings extensive expertise to his practice. He speaks Spanish, Chinese, English, and French, allowing him to communicate with patients from diverse backgrounds.

Dr. Wassenaar practices at Prohealth Waukesha Memorial Hospital and sees patients across multiple locations in Wisconsin, including Waukesha, Oconomowoc, and Mukwonago. His clinical focus includes treating blood clotting disorders like deep vein thrombosis and conditions such as hemophilia. He performs diagnostic blood work including complete blood counts and specialized protein testing. Patients consistently rate Dr. Wassenaar highly, giving him an average rating of 5.0.
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Quick Facts

  • accepting new patients
  • 5
  • 24 years of experience
  • 27 insurance plans accepted
  • speaks Spanish, Chinese, English, French
  • University Of Wisconsin Hospital
  • 3 written reviews
  • 3 specialties
  • 15 areas of expertise
  • 3 board certifications
  • 1 hospital affiliation
  • 4 office locations
  • Male

Office Locations

Dr. Timothy Robert Wassenaar has 4 locations

Uw Health Cancer Center At Prohealth Care

N16W24131 Riverwood DrWaukesha, WI 53188
Mon7:30 am - 7:00 pm
Tue7:30 am - 7:00 pm
Wed7:30 am - 7:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
Sat8:00 am - 4:00 pm
Sun8:00 am - 3:00 pm

Prohealth Cancer Center

791 Summit AveOconomowoc, WI 53066
Mon8:00 am - 7:00 pm
Tue8:00 am - 7:00 pm
Wed8:00 am - 7:00 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
Sat8:00 am - 4:30 pm
Sun8:00 am - 3:00 pm

Prohealth Waukesha Memorial Hospital

725 American AveWaukesha, WI 53188

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Dr. Timothy Robert Wassenaar, MDDr. Maxwell Joseph Nanes, DODr. Sarah Kathleen Dobrozsi, MDDr. William Jon Grossman, MD
OncologyEmergency MedicinePediatricsAllergy & Immunology
Accepts New Patients Accepts New Patients
24 Years of Experience 17 Years of Experience 27 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, Chinese, English, French Speaks English
Waukesha , WIMilwaukee , WIWauwatosa , WIMilwaukee , WI
Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences Med School: University Of Illinois At Chicago College Of Medicine Med School: Washington University In St Louis School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Timothy Robert Wassenaar

  • Aetna
  • All Savers Insurance
  • Allegiance Life and Health
  • AmeriGroup
  • Arise Health Plan
  • BLUE CROSS of CALIFORNIA
  • CHAMPVA - HMO
  • Cigna
  • Dean Health Plan
  • Dean Health Plan - HMO
  • Dean Health Plan - Medicaid (Managed)
  • Gundersen Health Plan
  • Humana
  • Humana - HMO
  • Humana - Medicare (Advantage HMO)
  • Medica - HMO
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Physicians Mutual
  • Quartz
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - PPO
  • Unity Health Insurance
  • WPS Health Plan

Medical Specialties

Dr. Timothy Robert Wassenaar has the following 3 specialties

Specialty Expertise

Dr. Timothy Robert Wassenaar has the following 15 areas of expertise

  • Blood Cancer
  • Bone Marrow Transplant
  • Chemotherapy
  • Chronic B-Cell Lymphocytic Leukemia
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hematology
  • Hepatitis C
  • Hospice & Palliative Medicine
  • Leukemia
  • Lymphoma
  • Myelodysplastic Syndromes
  • Myelofibrosis
  • Myeloma

Certifications, License, & Education

24 Years Experience

MEDICAL LICENSE

Medical Doctor, Wisconsin, 2027, Active

EDUCATION & TRAINING

Residency

University Of Wisconsin Hospital

Medical School

Chicago Medical School At Rosalind Franklin University-Medicine & SciencesGraduated in 2002

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Frequently Asked Questions

Is Dr. Timothy Wassenaar accepting new patients?
Dr. Timothy Wassenaar is accepting new patients on Vitals. View Dr. Timothy Wassenaar's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Timothy Wassenaar?
You can find contact information for Dr. Timothy Wassenaar here on Vitals.
What languages does Dr. Timothy Wassenaar speak?
Dr. Timothy Wassenaar speaks Spanish, Chinese, English, and French.
Does Dr. Timothy Wassenaar accept my insurance?
You can see the insurance plans that Dr. Timothy Wassenaar accepts on their Vitals profile.
Which hospitals is Dr. Timothy Wassenaar affiliated with?
Dr. Timothy Wassenaar is affiliated with Prohealth Waukesha Memorial Hospital.

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