Tracey Ledoux, PHD
Tracey Ledoux, PHD is a provider specialising in Research Clinic/Center in Houston, TX, registered under NPI 1003453135. 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 Houston, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 0.33 mi away. The nearest transit stop is 0.42 mi away.
Getting here and what is nearby
Restaurant Domino's 0.26 mi ~6 min
9119 Stella Link Road, Houston 77025
Mo-Th 10:00-24:00; Fr-Sa 10:00-01:00; Su 10:00-24:00
Hotel Raintree Inn & Suites 0.33 mi ~7 min
Parking 0.33 mi ~7 min
Gas station Mobil 0.34 mi ~7 min
Transit 0.42 mi ~9 min
Convenience 1st Stop 0.47 mi ~10 min
Restaurant Denny's 0.47 mi ~10 min
3332 South Loop West, Houston 77025
Convenience Sunny's Food Store 0.48 mi ~10 min
Gas station Valero 0.48 mi ~10 min
9230 Buffalo Speedway, Houston 77025
Gas station Sunny's Food Store 0.49 mi ~10 min
Restaurant Ruchi's Mexican Grill Taqueria 0.50 mi ~10 min
3202 South Loop West, Houston 77025
Hotel Motel 6 Houston, TX - Medical Center/NRG Stadium 0.52 mi ~11 min
3223 South Loop West, Houston 77025
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 |
|---|---|---|
| 33916 | TX | Research Clinic/Center primary |
This provider holds licence 33916 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 Research covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QR1100X
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 | 1003453135 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 9, 2019 |
| Last updated | Dec 9, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PHD |
| Practice address |
3615 LATMA DR Houston, TX 77025 (405) 762-9039 |
| Mailing address |
3875 HOLMAN ST GARRISON GYM RM 104 Houston, TX 77204 |
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 | 5 | 3 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 5 | 6 | 1 | 6 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.