BRIAN K MACHIDA MD A MEDICAL CORP
BRIAN K MACHIDA MD A MEDICAL CORP is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003108291, based in West Covina, CA. It is classified under Otolaryngology/Facial Plastic Surgery Physician.
Getting there
Here is what surrounds this office in West Covina, based on OpenStreetMap data collected Sep 4, 2026. No dedicated parking is recorded within walking distance, so allow extra time to find street parking. The nearest transit stop is 848 ft away, served by Foothill Transit 281.
Getting here and what is nearby
Convenience ExtraMile 233 ft ~1 min
Gas station Chevron 293 ft ~2 min
1209 South Sunset Avenue, West Covina 91790
Transit Foothill Transit 272, 281 385 ft ~2 min
Transit Foothill Transit 272, 281 385 ft ~2 min
Convenience ampm 440 ft ~2 min
Gas station Arco 402 ft ~2 min
1333 West Merced Avenue, West Covina 91790
Transit Foothill Transit 281 848 ft ~4 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 |
|---|---|---|
| G52616 | CA | Otolaryngology/Facial Plastic Surgery… primary |
This provider holds licence G52616 issued in CA. 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 Otolaryngology/Facial Plastic Surgery covers
An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions. NUCC Health Care Provider Taxonomy, code 207YX0905X
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 | 1003108291 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 6, 2011 |
| Last updated | Dec 19, 2011 |
| Status | Active |
| Practice address |
1250 S SUNSET AVE #206 West Covina, CA 91790 (626) 338-4453 Fax (626) 338-2556 |
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 | 1 | 0 | 8 | 2 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 7 | 2 | 9 |
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.