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

Gregory Kauffmann, MD

Individual provider Internal Medicine Physician · NPI 1326480245

Gregory Kauffmann, MD practises Radiation Oncology in Milwaukee, Wisconsin. Graduated from University of Chicago, Pritzker School of Medicine in 2013, 13 years ago. Practices with Radiation Oncology Associates Ltd, a 23-clinician group and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
13
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
IL, WI
In the registry since
2013
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

2900 W Oklahoma Ave
Milwaukee, WI 53215
Phone: (414) 649-6420
Fax: (414) 649-5309
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 68600-20 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125063200 (IL)

Record details

NPI number1326480245
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2013
Last updated in NPPESJuly 12, 2018

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Radiation Oncology Associates Ltd — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 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 patients214
Services billed 1,571 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 Radiation Oncology Associates Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 23 clinicians in the practice; 12 are shown here.

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