Diana Tran, OD
Diana Tran, OD is a provider specialising in Optometrist in Houston, TX, registered under NPI 1003641168. 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 Oct 12, 2026. Parking is available about 517 ft away. There is EV charging 588 ft from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 817 ft away. A pharmacy sits 0.47 mi from the entrance (Randalls Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Restaurant bellagreen 223 ft ~1 min
801 Town and Country Boulevard, Houston 77024
Restaurant Daily Gather 279 ft ~2 min
800 Sorella Court
Restaurant Yard House 319 ft ~2 min
800 Sorella Court, Houston 77024
Su-We 11:00-24:00, Th 11:00-01:00, Fr-Sa 11:00-01:30
Hotel The Moran CITYCENTRE Hotel 345 ft ~2 min
800 Sorella Court, Houston 77079
Parking 424 ft ~2 min
Parking 465 ft ~2 min
Parking 517 ft ~2 min
Coffee Starbucks 586 ft ~3 min
EV charging Tesla Supercharger 588 ft ~3 min
Transit 817 ft ~4 min
Hotel Candlewood Suites 0.23 mi ~5 min
Hotel Holiday Inn Express & Suites 0.41 mi ~9 min
10500 Katy Freeway, Houston 77079
Grocery Randalls 0.44 mi ~9 min
Pharmacy Walgreens 0.45 mi ~9 min
Coffee Starbucks 0.46 mi ~10 min
12850 Memorial Drive, Houston 77024
Pharmacy Randalls Pharmacy 0.47 mi ~10 min
Convenience Food Mart 0.49 mi ~10 min
Gas station Chevron 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 |
|---|---|---|
| 11143 | TX | Optometrist primary |
This provider holds licence 11143 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 Optometrist covers
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system. NUCC Health Care Provider Taxonomy, code 152W00000X
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 | 1003641168 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 6, 2024 |
| Last updated | Sep 6, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | OD |
| Practice address |
800 TOWN AND COUNTRY BLVD STE 110 Houston, TX 77024 (713) 936-6701 |
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 | 6 | 4 | 1 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 4 | 2 | 1 | 3 |
Sum = 42 · next multiple of 10 = 50 · check digit = 8 · actual last digit = 8
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.