Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William G Matthaeus, MD

Individual provider Hospice and Palliative Medicine (Internal Medicine) Physician · NPI 1326039074

William G Matthaeus, MD practises Hematology/Oncology in Milwaukee, Wisconsin. Graduated from Medical College of Wisconsin in 1983, 43 years ago. Practices with Aurora Health Care Central, Inc, a 10-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
43
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1055 N Mayfair Rd
Milwaukee, WI 53226-3436
Phone: (262) 857-5750
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 25992 (WI)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence 25992 (WI)

Record details

NPI number1326039074
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2005
Last updated in NPPESSeptember 24, 2024
Certification dateSeptember 24, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesHOSPICE/PALLIATIVE CARE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1983 (43 years in practice)
Group practice Aurora Health Care Central, Inc. — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients213
Services billed 624 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Aurora Health Care Central, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 6 are shown here.

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