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

Dr. Brian Keegan Markhardt, MD

Individual provider Diagnostic Radiology Physician · NPI 1154335420

Dr. Brian Keegan Markhardt, MD is a Diagnostic Radiology in Madison, Wisconsin. Graduated from University of Wisconsin School of Medicine in 2003, 23 years ago. Practices with University of Wisconsin Medical Foundation Inc, a 2,536-clinician group and accepts Medicare assignment. Licensed in California and Wisconsin.

Years since qualifying
23
Trained at
University of Wisconsin School of Medicine
Licensed in
CA, WI
In the registry since
2006
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

600 Highland Ave E3/366 Csc Uwhc Dept OF Radiology
Madison, WI 53792-0001
Phone: (608) 265-8231
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 51213-020 (WI)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence A 102863 (CA)

Record details

NPI number1154335420
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 29, 2006
Last updated in NPPESNovember 17, 2008
Mailing address2518 Gregory St, Madison, WI 53711-1929

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice University Of Wisconsin Medical Foundation Inc — 2536 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations35 on file with Medicare

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