Brian Diep, MD
Brian Diep, MD is a provider specialising in Student in an Organized Health Care Education/Training Program in Orange, CA, registered under NPI 1003754813.
Getting there
Here is what surrounds this office in Orange, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.41 mi away. There is EV charging 0.36 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.24 mi away, served by Chapman-The City. If you arrive early, there is a coffee shop 0.38 mi away.
Getting here and what is nearby
Parking 295 ft ~2 min
Parking 349 ft ~2 min
Restaurant WaBa Grill 510 ft ~2 min
3070 West Chapman Avenue, Orange 92868
Restaurant Pita Grill 510 ft ~2 min
3070 West Chapman Avenue, Orange 92868
Mo-Fr 10:30-20:00; Sa 11:00-18:00; Su off
Restaurant Tacos La Calle 512 ft ~2 min
3070 West Chapman Avenue, Orange 92868
Su-Th 11:00-21:00; Fr,Sa 11:00-22:00
Transit Chapman-Renaissance 741 ft ~3 min
Coffee Kelly's Coffee 758 ft ~3 min
Transit Chapman-Renaissance 775 ft ~3 min
Transit Chapman-The City 0.24 mi ~5 min
Hotel Hotel Fera Anaheim, a DoubleTree by Hilton Hotel 0.30 mi ~6 min
Hotel ALO Hotel 0.33 mi ~7 min
Hotel Ayres Hotel Orange 0.34 mi ~7 min
EV charging 0.36 mi ~8 min
Coffee Starbucks 0.38 mi ~8 min
3743 West Chapman Avenue, Orange 92868
Mo-Th 04:00-22:00; Fr 04:00-23:30; Sa 04:00-00:00; Su 05:00-22:30
Parking 0.41 mi ~9 min
333 South Anita Drive, Orange 92868
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 | 1003754813 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 23, 2026 |
| Last updated | Mar 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
101 THE CITY DR S STE 400 Orange, CA 92868 (714) 456-5691 |
| Mailing address |
1808 S GRANADA AVE Alhambra, CA 91801 |
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 | 7 | 5 | 4 | 8 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 5 | 8 | 8 | 2 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.