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

John Martin Floberg, MD, PHD

Individual provider Radiation Oncology Physician · NPI 1225456981

John Martin Floberg, MD, PHD is a Radiation Oncology in Madison, Wisconsin. Graduated from University of Wisconsin School of Medicine in 2014, 12 years ago. Practices with University of Wisconsin Medical Foundation Inc, a 2,536-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri and Wisconsin.

Years since qualifying
12
Trained at
University of Wisconsin School of Medicine
Licensed in
MO, WI
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

2140 Med 4 Mailbox Hslc 750 Highland Ave
Madison, WI 53705
Phone: (608) 263-8500
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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 71062-20 (WI)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 2015013465 (MO)

Record details

NPI number1225456981
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMarch 31, 2014
Last updated in NPPESJanuary 20, 2021
Certification dateJanuary 20, 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 2014 (12 years in practice)
Group practice University Of Wisconsin Medical Foundation Inc — 2536 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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