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

MS. Holly A Onsager, MSN

Individual provider Registered Nurse · NPI 1114274107

MS. Holly A Onsager, MSN is a Registered Nurse in Milwaukee, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2012
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

2014 E Webster Pl
Milwaukee, WI 53211-4047
Phone: (414) 962-5766
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 658995-30 (WI)
Gerontology Clinical Nurse Specialist Taxonomy 364SG0600X · Licence 65895-30 (WI)

Record details

NPI number1114274107
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN
Sole proprietorYes
NPI enumeratedAugust 8, 2012
Last updated in NPPESAugust 8, 2012

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