CATHERINE L ONSRUD FNP
NPI 1902981673
Nurse Practitioner - Family in Watertown, WI
About Catherine L Onsrud Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE L ONSRUD FNP (NPI 1902981673) is an individual family provider in Watertown, Wisconsin, licensed in Wisconsin (2986-033) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Javon Bea Hospital, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Catherine L Onsrud Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Catherine Onsrud reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Javon Bea Hospital
Acute Care Hospitals · Rockford, ILMercy Harvard Hospital
Critical Access Hospitals · Harvard, ILMercy Health System Corp
Acute Care Hospitals · Janesville, WIMercy Walworth Hospital & Medical Center
Critical Access Hospitals · Lake Geneva, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53094 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WATERTOWN, WI 53094
WATERTOWN, WI 53094
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Catherine Onsrud's NPI number?
The NPI number for Catherine Onsrud is 1902981673. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Catherine Onsrud located?
Catherine Onsrud practices at 109 Air Park Dr Prohealth Care Medical Centers Watertown, Watertown, WI 53094. The listed phone number is (262) 928-5100.
What is Catherine Onsrud's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Catherine Onsrud enrolled in Medicare?
Yes. Catherine Onsrud is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Catherine Onsrud's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Onsrud reassigns Medicare benefits to Mercy Health System Corporation (Janesville, WI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Catherine Onsrud's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Catherine Onsrud affiliated with any hospitals?
According to CMS data, Catherine Onsrud is affiliated with Javon Bea Hospital, Mercy Harvard Hospital, Mercy Health System Corp and Mercy Walworth Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Catherine Onsrud was last updated on October 18, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Catherine L Onsrud, FNP · NPI 1902981673
Family physician in Watertown, Wisconsin. Individual provider, active in the CMS NPPES registry since October 25, 2006.
## Identity
- **NPI:** 1902981673 (Entity type: Individual)
- **Enumerated:** October 25, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2986-033 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 109 AIR PARK DR, PROHEALTH CARE MEDICAL CENTERS WATERTOWN, Watertown, WI 53094-7400
- **Phone:** (262) 928-5100 · **Fax:** (262) 928-5111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mercy Health System Corporation (NPI 1093768962, Janesville, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** October 18, 2007
- **Other identifiers:** Medicaid 39846100 (WI); Medicare UPIN Q72361 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1902981673) · Data from the CMS NPPES public registry.