Summary

Dr. Timothy Wassenaar is a board-certified oncologist and hematologist who also specializes in hospice and palliative medicine. He graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science and completed his residency at the University of Wisconsin Hospital. With 24 years of clinical experience, Dr. Wassenaar brings extensive expertise to cancer care, blood disorders, and end-of-life comfort care. He speaks Spanish, Chinese, English, and French.

Dr. Wassenaar practices at ProHealth Waukesha Memorial Hospital and sees patients at multiple locations throughout Wisconsin, including Waukesha, Oconomowoc, and Mukwonago. His clinical focus includes treating conditions such as high blood pressure, iron deficiency anemia, and blood clots in the legs. He performs essential diagnostic procedures including comprehensive blood testing and complete blood counts to monitor patient health. Patients rate Dr. Wassenaar 5.0 out of 5 stars on Vitals.

Overview based on verified provider data

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

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

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 Marie Rumler, DODr. Evalynne J Espejo, MD
OncologyEmergency MedicinePediatricsPathology
Accepts New Patients Accepts New Patients
24 Years of Experience 12 Years of Experience 41 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 Speaks English
Waukesha , WIMilwaukee , WIWauwatosa , WIMilwaukee , WI
Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences Med School: Lake Erie College Of Osteopathic Medicine Med School: UNIVERSITY OF SANTO TOMAS
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

Dr. Timothy Robert Wassenaar holds an active medical license in the state of Wisconsin.

Medical License

Medical Doctor with an active medical license in the state of Wisconsin that expires in 2027.

Education & Training

Residency

Completed their residency at University Of Wisconsin Hospital.

Medical School

Graduated from Chicago Medical School At Rosalind Franklin University-Medicine & Sciences in 2002.

NPI Number

Dr. Wassenaar's NPI number is 1518928993.

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Frequently Asked Questions

Where is Dr. Timothy Wassenaar's office located?
Dr. Timothy Wassenaar's office is located at N16W24131 Riverwood Dr, Waukesha, WI, 53188.
Which hospitals is Dr. Timothy Wassenaar affiliated with?
Dr. Timothy Wassenaar is affiliated with Prohealth Waukesha Memorial Hospital.
Does Dr. Timothy Wassenaar accept my insurance?
You can see the insurance plans that Dr. Timothy Wassenaar accepts on their Vitals profile.
How can I make an appointment with Dr. Timothy Wassenaar?
You can find contact information for Dr. Timothy Wassenaar here on Vitals.
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.

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