Catherine Onsrud, FNP
Catherine Onsrud, FNP is a Family Nurse Practitioner in Watertown, WI, registered under NPI 1902981673.
Getting there
The practice address on file is 109 AIR PARK DR PROHEALTH CARE MEDICAL CENTERS WATERTOWN, Watertown, WI 53094. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 2986-033 | WI | Family Nurse Practitioner primary |
This provider holds licence 2986-033 issued in WI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 5799783429
- Enrollment ID
- I20061113000460
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Family covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1902981673 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 25, 2006 |
| Last updated | Oct 18, 2007 |
| Status | Active |
| Sole proprietor | No |
| Credential | FNP |
| Practice address |
109 AIR PARK DR PROHEALTH CARE MEDICAL CENTERS WATERTOWN Watertown, WI 53094 (262) 928-5100 Fax (262) 928-5111 |
| Mailing address |
N17W24100 RIVERWOOD DR SUITE 250 Waukesha, WI 53188 |
| Other identifiers |
39846100
· Medicaid (WI) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 0 | 2 | 9 | 8 | 1 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 0 | 2 | 9 | 8 | 2 | 6 | 5 |
Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.