Thomas Ryou
Thomas Ryou is a provider specialising in Student in an Organized Health Care Education/Training Program in Sylmar, CA, registered under NPI 1003078601. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Sylmar, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 620 ft away at Parking Lot I. The nearest transit stop is 1,001 ft away, served by Olive View / Kennedy.
Getting here and what is nearby
Transit Kennedy / UCLA Medical Center (Layover) 491 ft ~2 min
Transit Kennedy / UCLA Medical Center (Layover) 530 ft ~3 min
Parking Parking Lot C 522 ft ~2 min
Parking Parking Lot D 609 ft ~3 min
Parking Parking Lot I 620 ft ~3 min
Transit Olive View / Kennedy 1,001 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003078601 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 26, 2008 |
| Last updated | Jun 26, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
14445 OLIVE VIEW DRIVE Sylmar, CA 91342 (818) 364-3233 |
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 | 0 | 7 | 8 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 7 | 6 | 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.