Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Shannon Offerman, MD

Individual provider Radiation Oncology Physician · NPI 1356520506

Shannon Offerman, MD is a Radiation Oncology in Brookfield, Wisconsin. Graduated from Medical College of Wisconsin in 2006, 20 years ago. Practices with Radiation Oncology Associates Ltd, a 23-clinician group and accepts Medicare assignment. Licensed in Ohio and Wisconsin.

Years since qualifying
20
Trained at
Medical College of Wisconsin
Licensed in
OH, WI
In the registry since
2007
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

19333 W North Ave
Brookfield, WI 53045-4132
Phone: (262) 780-4100
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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 55615-20 (WI)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 57013998 (OH)

Record details

NPI number1356520506
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2007
Last updated in NPPESOctober 30, 2025
Certification dateOctober 30, 2025
Mailing address11516 N Port Washington Rd Ste 107, Mequon, WI 53092-3478

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2006 (20 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

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