NORTHWEST KIDNEY CENTERS
NORTHWEST KIDNEY CENTERS is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1578507919, based in Seatac, WA. The organization lists 2 taxonomy classifications, with Clinic Pharmacy recorded as primary.
Getting there
The practice address on file is 12901 20TH AVE S, Seatac, WA 98168. 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 |
|---|---|---|
| 20609MS | ID | Clinic Pharmacy primary |
| CF00003625 | WA | Pharmacy |
Licences are recorded in 2 states: ID, WA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: Idaho and Washington. The practice address on file is in Seatac, WA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Clinic Pharmacy covers
A pharmacy in a clinic, emergency room or hospital (outpatient) that dispenses medications to patients for self-administration under the supervision of a pharmacist. NUCC Health Care Provider Taxonomy, code 3336C0002X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 3336C0002X | Clinic Pharmacy Clinic Pharmacy | 20609MS | ID | primary |
| 333600000X | Pharmacy | CF00003625 | WA |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1578507919 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 16, 2006 |
| Last updated | Oct 14, 2025 |
| Status | Active |
| Practice address |
12901 20TH AVE S Seatac, WA 98168 (206) 343-4870 Fax (206) 343-4884 |
| Mailing address |
12901 20TH AVE S STE 100 Seatac, WA 98168 |
| Other identifiers |
2108628
· Other PHAR.CF.70014609 · Other (WA) 1044789 · Medicaid (WA) |
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 | 5 | 7 | 8 | 5 | 0 | 7 | 9 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 5 | 8 | 1 | 0 | 5 | 9 | 2 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.