Anna Nguyen
Anna Nguyen is a provider specialising in Dental Hygienist in Arnold, MO, registered under NPI 1003440843.
Getting there
Here is what surrounds this office in Arnold, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 0.58 mi away. There is EV charging 877 ft from the office (EVGo) — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 0.27 mi away.
Getting here and what is nearby
Parking 445 ft ~2 min
Restaurant Rally's 582 ft ~3 min
Restaurant Dunkin' 611 ft ~3 min
Restaurant Taco Bell 743 ft ~3 min
EV charging EVGo 877 ft ~4 min
Coffee Starbucks 0.27 mi ~6 min
Convenience QuikTrip 0.34 mi ~7 min
Gas station QuikTrip 0.34 mi ~7 min
Hotel Pear Tree Inn St. Louis Arnold 0.38 mi ~8 min
1201 Drury Lane, Arnold 63010
Hotel Drury Inn & Suites 0.38 mi ~8 min
Parking 0.47 mi ~10 min
Parking 0.58 mi ~12 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 Dental Hygienist covers
An individual who has completed an accredited dental hygiene education program, and an individual who has been licensed by a state board of dental examiners to provide preventive care services under the supervision of a dentist. Functions that may be legally delegated to the dental hygienist vary based on the needs of the dentist, the educational preparation of the dental hygienist and state dental practice acts and regulations, but always include, at a minimum, scaling and polishing the teeth. To avoid misleading the public, no occupational title other than dental hygienist should be used to describe this dental auxiliary. NUCC Health Care Provider Taxonomy, code 124Q00000X
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 | 1003440843 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 2, 2020 |
| Last updated | Mar 2, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
849 JEFFCO BLVD Arnold, MO 63010 (636) 287-0440 |
| Mailing address |
227 MAIN ST Festus, MO 63028 |
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 | 4 | 4 | 0 | 8 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 0 | 8 | 8 |
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.