Janine Witherspoon, RDH
Janine Witherspoon, RDH is a provider specialising in Dental Hygienist in Plano, TX, registered under NPI 1003010414.
Getting there
Here is what surrounds this office in Plano, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.27 mi away. A pharmacy sits 0.50 mi from the entrance (Stellus Rx), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.44 mi away.
Getting here and what is nearby
Parking 183 ft ~1 min
Restaurant McDonald's 333 ft ~2 min
Restaurant On The Border 351 ft ~2 min
4940 State Highway 121, Plano
Restaurant Chick-fil-A 395 ft ~2 min
Hotel Fairfield Inn & Suites 710 ft ~3 min
Hotel SpringHill Suites Dallas Plano/Frisco 0.22 mi ~5 min
Grocery Walmart Supercenter 0.25 mi ~5 min
Parking 0.26 mi ~6 min
Parking 0.27 mi ~6 min
Coffee CoCo Fresh Tea & Juice 0.30 mi ~7 min
Gas station 7-Eleven 0.34 mi ~7 min
Gas station Sam's Club 0.36 mi ~8 min
Gas station 7-Eleven 0.36 mi ~8 min
Coffee Starbucks 0.38 mi ~8 min
Coffee The Alley 0.44 mi ~9 min
8240 Preston Road
Mo-Th,Su 11:00-22:00; Fr-Sa 11:00-22:30
Hotel The Clara Hotel Plano Tapestry 0.50 mi ~10 min
8201 Preston Road, Plano 75024
Pharmacy Stellus Rx 0.50 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 |
|---|---|---|
| 14673 | TX | Dental Hygienist primary |
This provider holds licence 14673 issued in TX. 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 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 | 1003010414 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 12, 2007 |
| Last updated | Jul 8, 2007 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RDH |
| Practice address |
8608 PRESTON RD 112 Plano, TX 75024 (214) 619-6329 |
| Mailing address |
554 APPOMATTOX DR Mesquite, TX 75149 |
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 | 1 | 0 | 4 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 1 | 0 | 4 | 2 |
Sum = 36 · next multiple of 10 = 40 · 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.