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

Karen M Loomans, MD

Individual provider Internal Medicine Physician · NPI 1649246596

Karen M Loomans, MD is an Internal Medicine in Waunakee, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1989, 37 years ago. Licensed in Wisconsin.

Years since qualifying
37
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1603 Charleston Cir
Waunakee, WI 53597-2332
Phone: (608) 265-7550
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 31274 (WI)

Record details

NPI number1649246596
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2006
Last updated in NPPESOctober 3, 2025
Certification dateOctober 3, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare