Kathryn Cnossen, NP-C
Kathryn Cnossen, NP-C is a Family Nurse Practitioner in Boise, ID, registered under NPI 1003403338.
Getting there
Here is what surrounds this office in Boise, based on OpenStreetMap data collected Sep 24, 2026. Parking is available about 665 ft away.
Getting here and what is nearby
Parking 311 ft ~2 min
Parking 578 ft ~3 min
Parking 665 ft ~3 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 66210 | ID | Family Nurse Practitioner primary |
This provider holds licence 66210 issued in ID. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
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 | 1003403338 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 21, 2020 |
| Last updated | Oct 13, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | NP-C |
| Practice address |
8000 S FEDERAL WAY Boise, ID 83716 (208) 368-2109 |
| Other names |
Kathryn Humphreys Former Legal Business Name |
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 | 0 | 0 | 3 | 4 | 0 | 3 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 0 | 6 | 3 | 6 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.