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

Dr. Mark K Aasen, MD

Individual provider Anesthesiology Physician · NPI 1184609356

Dr. Mark K Aasen, MD is a Pain Management in Greenfield, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1987, 39 years ago. Practices with Pain Physicians of Wisconsin SC, a 28-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
39
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2005
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

4131 W Loomis Rd Ste 300
Greenfield, WI 53221-2059
Phone: (414) 325-7246
Fax: (414) 325-3770
Show map & directions

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

Specialties & licences

Interventional Pain Medicine Physician (primary) Taxonomy 208VP0014X · Licence 37593-020 (WI)
Anesthesiology Physician Taxonomy 207L00000X · Licence 37593-020 (WI)

Record details

NPI number1184609356
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 10, 2005
Last updated in NPPESJanuary 29, 2014
Mailing address4131 W. Loomis Rd., Ste 300, Greenfield, WI 53221-2059

Medicare enrollment

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

Medicare specialtyPAIN MANAGEMENT
Also practisesANESTHESIOLOGY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Pain Physicians Of Wisconsin Sc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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