David Blaisdell, CPO, LPO
David Blaisdell, CPO, LPO is a provider specialising in Prosthetic/Orthotic Supplier in Richland, WA, registered under NPI 1578980991. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 949 STEVENS DR, Richland, WA 99352. 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 |
|---|---|---|
| PS00000468 | WA | Prosthetic/Orthotic Supplier primary |
| OI00000469 | WA | Prosthetic/Orthotic Supplier |
This provider holds licence PS00000468 issued in WA. 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 Prosthetic/Orthotic Supplier covers
An organization that provides prosthetic and orthotic care which may include, but is not limited to, patient evaluation, prosthesis or orthosis design, fabrication, fitting and modification to treat limb loss for purposes of restoring physiological function and/or cosmesis or to treat a neuromusculoskeletal disorder or acquired condition. NUCC Health Care Provider Taxonomy, code 335E00000X
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 | |
|---|---|---|---|---|
| 335E00000X | Prosthetic/Orthotic Supplier | PS00000468 | WA | primary |
| 335E00000X | Prosthetic/Orthotic Supplier | OI00000469 | 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-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 | 1578980991 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 24, 2014 |
| Last updated | Mar 24, 2014 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | CPO, LPO |
| Practice address |
949 STEVENS DR Richland, WA 99352 (509) 946-2520 Fax (509) 946-2530 |
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 | 9 | 8 | 0 | 9 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 5 | 8 | 9 | 8 | 0 | 9 | 9 |
Sum = 79 · next multiple of 10 = 80 · check digit = 1 · actual last digit = 1
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.