Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Karen Jean Mahnke, MSN, APN, CNS-BC

Individual provider Medical-Surgical Clinical Nurse Specialist · NPI 1477994929

Karen Jean Mahnke, MSN, APN, CNS-BC is a Medical-Surgical Clinical Nurse Specialist in Gurnee, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2013
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.

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Practice location Address checks out

6269 Old Farm Ln
Gurnee, IL 60031-4433
Phone: (857) 535-6286
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical-Surgical Clinical Nurse Specialist (primary) Taxonomy 364SM0705X · Licence 209003724 (IL)

Record details

NPI number1477994929
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APN , CNS-BC
Sole proprietorYes
NPI enumeratedJuly 12, 2013
Last updated in NPPESJuly 12, 2013