Dave Nguyen, D.M.D
Dave Nguyen, D.M.D is a provider specialising in General Practice Dentistry in Tustin, CA, registered under NPI 1003031972. 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 Tustin, based on OpenStreetMap data collected Aug 31, 2026. Parking is available about 905 ft 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 556 ft away, served by Newport-1st. A pharmacy sits 0.38 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Pharmacy Good Neighbor Pharmacy 0.00 mi ~1 min
Mo-Fr 08:30-18:00; Sa 09:00-14:00; Su off
Transit Newport-1st 232 ft ~1 min
Restaurant Chipotle 226 ft ~1 min
Restaurant KFC 230 ft ~1 min
Parking 343 ft ~2 min
Restaurant El Pollo Loco 337 ft ~2 min
13421 Newport Avenue, Tustin 92780
Transit 1st-Newport 455 ft ~2 min
Transit Newport-1st 556 ft ~3 min
Pharmacy CVS Pharmacy 643 ft ~3 min
Grocery Albertsons 690 ft ~3 min
13270 Newport Avenue, Tustin 92780
Mo-Su 06:00-24:00
Parking 718 ft ~3 min
Parking 905 ft ~4 min
Grocery 99 Ranch Market 879 ft ~4 min
550 East 1st Street, Tustin 92780
Grocery Sprouts Farmers Market 893 ft ~4 min
14945 Holt Avenue, Tustin 92780
Mo-Su 07:00-22:00
Gas station 76 0.20 mi ~4 min
Coffee 85°C 0.33 mi ~7 min
Mo-Th 07:00-20:00; Fr,Sa 07:00-21:00; Su 08:00-20:00
Coffee Kean Coffee 0.33 mi ~7 min
EV charging 0.36 mi ~8 min
Pharmacy Walgreens 0.38 mi ~8 min
13052 Newport Avenue, Tustin 92780
Coffee The Lost Bean 0.43 mi ~9 min
Mo-Sa 06:00-19:00; Su 07:00-19:00
Convenience Circle K 0.49 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 |
|---|---|---|
| 52761 | CA | General Practice Dentistry primary |
This provider holds licence 52761 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 General Practice covers
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs. NUCC Health Care Provider Taxonomy, code 1223G0001X
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 | 1003031972 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 16, 2007 |
| Last updated | Jul 8, 2007 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | D.M.D |
| Practice address |
13400 NEWPORT AVE STE B Tustin, CA 92780 (714) 838-1280 Fax (714) 838-1264 |
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 | 3 | 1 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 3 | 2 | 9 | 5 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.