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

Dr. Michelle Mary Kolton Mackay, MD

Individual provider Radiation Oncology Physician · NPI 1013179928

Dr. Michelle Mary Kolton Mackay, MD practises Radiation Oncology in Madison, Wisconsin. Graduated from University of Wisconsin School of Medicine in 2004, 22 years ago. Practices with Shared Magnetic Resonance Imaging Facility Inc, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania and Wisconsin.

Years since qualifying
22
Trained at
University of Wisconsin School of Medicine
Licensed in
PA, WI
In the registry since
2008
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

1104 John Nolen Dr
Madison, WI 53713-1430
Phone: (608) 251-6868
Fax: (608) 251-4255
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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 52849-020 (WI)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence MT184232 (PA)

Record details

NPI number1013179928
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2008
Last updated in NPPESMarch 8, 2021
Certification dateMarch 8, 2021

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Shared Magnetic Resonance Imaging Facility Inc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients191
Services billed 3,047 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.

  • Ssm Health St Clare Hospital - Baraboo Hospital · Baraboo, WI
  • Ssm Health St Mary'S Hospital - Janesville Hospital · Janesville, WI
  • Ssm Health St Mary'S Hospital - Madison Hospital · Madison, WI

Colleagues at Shared Magnetic Resonance Imaging Facility Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 9 clinicians in the practice; 5 are shown here.

Other providers in Madison