Internist, Hematology Specialist, Oncology Specialist (cancer)
28 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. William Matthaeus is Excellent. Dr. Matthaeus has been reviewed by 4 patients who have provided 1 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 4.6
Bedside Manner 5.0
Spends Time with Me 4.1
Follows Up After Visit 4.6

Specialties & Research

Dr. William Matthaeus, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 10 areas:
  • Acute Myeloid Leukemia
  • Adult T-Cell Leukemia-Lymphoma
  • Bone Marrow Transplantation
  • Cancer
  • Chronic B-Cell Lymphocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Leukemia
  • Lymphoma
  • Myeloid Leukemia

Education & Awards

Dr. Matthaeus graduated from Medical College of Wisconsin, Milwaukee.


Dr. Matthaeus has 26 hospital affiliations:

  • Aurora Sinai Medical Center 
  • Aurora Sheboygan Memorial Medical Center 

> > > > Dr. William Matthaeus, MD

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Additional Information
Dr. William Gerard Matthaeus MD is a male Internist, has 28 years of experience and practices in Internal Medicine, Hematology, and Medical Oncology.
Where does Dr. William G. Matthaeus practice?
Dr. William Matthaeus has 12 office locations.
Dr. William Matthaeus practices Internal Medicine, Hematology, and Medical Oncology near Milwaukee, WI.
Additional practice locations include: Cudahy, WI and Thiensville, WI.
See Milwaukee Internists, Milwaukee Hematologists, and Milwaukee Oncologists.