Trong-nghia Nguyen
Trong-nghia Nguyen is a Pharmacist in Oakland, CA, registered under NPI 1003289844. 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 Oakland, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 368 ft away at 580/Fruitvale Park And Ride. There is EV charging 499 ft from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 400 ft away, served by Fruitvale Avenue & MacArthur Boulevard. A pharmacy sits 0.00 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 570 ft away.
Getting here and what is nearby
Pharmacy CVS Pharmacy 0.00 mi ~1 min
Parking 74 ft ~1 min
Restaurant Tomsa Sushi 226 ft ~1 min
3400 Fruitvale Avenue, 94602
Mo-Th, Su 11:30-20:30; Fr, Sa 11:30-21:00
Restaurant Bombera Bar & Grill 235 ft ~1 min
Transit Montana Street & Fruitvale Avenue 290 ft ~2 min
Grocery Farmer Joe's 262 ft ~1 min
Parking 580/Fruitvale Park And Ride 319 ft ~2 min
Under I-580 Btwn Fruitvale / Champion St, Oakland 94601
Transit Fruitvale Avenue & Montana Street 371 ft ~2 min
Coffee Peet's Coffee 344 ft ~2 min
3403 Fruitvale Avenue, Oakland 94602
Coffee Dimond Cafe 359 ft ~2 min
Parking 580/Fruitvale Park And Ride 368 ft ~2 min
Under I-580 Btwn Fruitvale / Champion St, Oakland 94601
Restaurant China Gourmet Express 356 ft ~2 min
3407 Fruitvale Avenue
Transit Fruitvale Avenue & MacArthur Boulevard 400 ft ~2 min
Gas station Vickie's Shell 411 ft ~2 min
EV charging ChargePoint 499 ft ~2 min
Convenience Tazah Market 478 ft ~2 min
Convenience 7-Eleven 537 ft ~3 min
Coffee Mohka House 570 ft ~3 min
Grocery Safeway 866 ft ~4 min
3550 Fruitvale Avenue, Oakland 94602
06:00-24:00
Convenience School Market 0.40 mi ~8 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 |
|---|---|---|
| 56512 | CA | Pharmacist primary |
This provider holds licence 56512 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 Pharmacist covers
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care. NUCC Health Care Provider Taxonomy, code 183500000X
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 | 1003289844 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 2, 2015 |
| Last updated | Nov 2, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
3320 FRUITVALE AVE Oakland, CA 94602 (510) 530-3156 Fax (510) 530-1082 |
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 | 8 | 9 | 8 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 8 | 9 | 8 | 8 |
Sum = 66 · next multiple of 10 = 70 · check digit = 4 · actual last digit = 4
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.