Jorge Villalvazo, HAD
Jorge Villalvazo, HAD is a Hearing Instrument Specialist in Sierra Vista, AZ, registered under NPI 1003225665.
Getting there
Here is what surrounds this office in Sierra Vista, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 300 ft away. The nearest transit stop is 0.29 mi away.
Getting here and what is nearby
Parking 167 ft ~1 min
Parking 243 ft ~1 min
Parking 300 ft ~2 min
Gas station Chevron 376 ft ~2 min
Convenience Doc's 443 ft ~2 min
Restaurant Vinny's New York Pizza 583 ft ~3 min
Restaurant Dairy Queen 739 ft ~3 min
Transit 0.22 mi ~5 min
Hotel Fairfield Inn and Suites 0.27 mi ~6 min
Hotel Hampton Inn Sierra Vista 0.27 mi ~6 min
Transit 0.29 mi ~6 min
Restaurant Jack in the Box 0.32 mi ~7 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 |
|---|---|---|
| HAD1906 | AZ | Hearing Instrument Specialist primary |
This provider holds licence HAD1906 issued in AZ. 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 Hearing Instrument Specialist covers
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society NUCC Health Care Provider Taxonomy, code 237700000X
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 | 1003225665 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 7, 2014 |
| Last updated | Aug 7, 2014 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | HAD |
| Practice address |
1989 FRONTAGE RD Sierra Vista, AZ 85635 (520) 458-3383 Fax (520) 458-9623 |
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 | 2 | 2 | 5 | 6 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 2 | 1 | 6 | 3 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.