Rey Castillo Emmanuelli, PA
Rey Castillo Emmanuelli, PA is a Physician Assistant in La Verne, CA, registered under NPI 1003622317. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in La Verne, based on OpenStreetMap data collected Oct 11, 2026. Parking is available about 795 ft away at Lot N. There is EV charging 0.46 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 761 ft away, served by Foothill Transit 492.
Getting here and what is nearby
Parking 292 ft ~2 min
Parking 311 ft ~2 min
Transit Foothill Transit 492 512 ft ~2 min
Transit Foothill Transit 492 623 ft ~3 min
Transit Foothill Transit 492 761 ft ~3 min
Parking Lot N 795 ft ~4 min
Mo-Fr 07:00-19:00
Restaurant Argo Mediterranean Grille 811 ft ~4 min
D Street, La Verne 91750
Restaurant House of Wings 823 ft ~4 min
2317 D Street, La Verne 91750
Mo-Th 11:00-22:00; Fr-Sa 11:00-01:00; Su 11:00-21:00
Restaurant Spooner's 831 ft ~4 min
2325 D Street, La Verne 91750
Su off; Mo-Th 11:00-15:00,16:30-21:00; Fr-Sa 11:00-21:00
Convenience Circle K 0.20 mi ~4 min
Convenience Villa's Market 0.21 mi ~5 min
EV charging 0.46 mi ~10 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 |
|---|---|---|
| 65779 | CA | Physician Assistant primary |
This provider holds licence 65779 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Physician Assistant
- PAC ID
- 0749704211
- Enrollment ID
- I20250404003275
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
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 | |
|---|---|---|---|---|
| 363A00000X | Physician Assistant | 65779 | CA | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003622317 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 10, 2024 |
| Last updated | Jan 27, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PA |
| Practice address |
1950 3RD ST La Verne, CA 91750 (909) 593-3511 |
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 | 6 | 2 | 2 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 2 | 4 | 3 | 2 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.