Dorothy Yokoyama, D.M.D.
Dorothy Yokoyama, D.M.D. is a provider specialising in Pediatric Dentistry in Irvine, CA, registered under NPI 1003041690. 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 Irvine, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 601 ft away. There is EV charging 0.24 mi from the office (ChargePoint) — useful if you are driving in from out of town.
Getting here and what is nearby
Parking 337 ft ~2 min
Restaurant Knowlwood 291 ft ~2 min
14952 Sand Canyon Avenue, Irvine 92618
Restaurant Denny's 305 ft ~2 min
14962 Sand Canyon Avenue, Irvine 92618
Parking 371 ft ~2 min
Gas station Sand Canyon Service Station 399 ft ~2 min
Hotel La Quinta Inn & Suites 429 ft ~2 min
Hotel La Quinta Inn & Suites Irvine Spectrum 495 ft ~2 min
Parking 601 ft ~3 min
Restaurant Jack in the Box 583 ft ~3 min
EV charging ChargePoint 0.24 mi ~5 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 |
|---|---|---|
| 58180 | CA | Pediatric Dentistry primary |
This provider holds licence 58180 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 Pediatric Dentistry covers
An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs. NUCC Health Care Provider Taxonomy, code 1223P0221X
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 | 1003041690 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 26, 2009 |
| Last updated | Feb 10, 2013 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | D.M.D. |
| Practice address |
14976 SAND CANYON AVE Irvine, CA 92618 (949) 788-0088 |
| Other names |
Dorothy Lin Former Legal Business Name |
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 | 4 | 1 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 4 | 2 | 6 | 9 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.