William Hernandez
William Hernandez is a provider specialising in Prosthetic/Orthotic Supplier in Arecibo, PR, registered under NPI 1881026201. 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 CALLE 1 BLOQUE 2 751 URB PASEO REAL, Arecibo, PR 00612. 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 |
|---|---|---|
| 660807512 | PR | Prosthetic/Orthotic Supplier primary |
This provider holds licence 660807512 issued in PR. 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
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 | 1881026201 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 8, 2013 |
| Last updated | Aug 8, 2013 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
CALLE 1 BLOQUE 2 751 URB PASEO REAL Arecibo, PR 00612 (787) 502-4413 |
| Mailing address |
PO BOX 827 Barceloneta, PR 00617 |
| Other identifiers |
660807512
· Other |
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 | 8 | 8 | 1 | 0 | 2 | 6 | 2 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 7 | 1 | 0 | 2 | 3 | 2 | 0 |
Sum = 49 · next multiple of 10 = 50 · 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.