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

Catherine L Onsrud, FNP

Individual provider Family Nurse Practitioner · NPI 1902981673

Catherine L Onsrud, FNP is a Nurse Practitioner in Watertown, Wisconsin. Qualified in 2006, 20 years ago. Practices with Mercy Health System Corporation, a 751-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
20
Licensed in
WI
In the registry since
2006
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

109 Air Park Dr Prohealth Care Medical Centers Watertown
Watertown, WI 53094-7400
Phone: (262) 928-5100
Fax: (262) 928-5111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 2986-033 (WI)

Record details

NPI number1902981673
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESOctober 18, 2007

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Mercy Health System Corporation — 751 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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