Diem Mya Nguyen, PHARMD
Diem Mya Nguyen, PHARMD is a Pharmacist in Sugar Land, TX, registered under NPI 1003492851.
Getting there
Here is what surrounds this office in Sugar Land, based on OpenStreetMap data collected Sep 30, 2026. Parking is available about 0.20 mi away. There is EV charging 0.28 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 326 ft away.
Getting here and what is nearby
Parking 249 ft ~1 min
Restaurant Thai Cottage 247 ft ~1 min
Mo-Th 11:00-15:00,17:00-21:30; Fr-Sa 11:00-15:00,17:00-22:00
Coffee Starbucks 326 ft ~2 min
Parking 628 ft ~3 min
Grocery Kroger 743 ft ~3 min
4825 Sweetwater Boulevard, Sugar Land 77479
Mo-Su 06:00-23:00
Parking 0.20 mi ~4 min
Restaurant Olive Garden 0.27 mi ~6 min
5005 Sweetwater Boulevard, Sugar Land 77479
Su-Th 11:00-22:00, Fr-Sa 11:00-23:00
EV charging Tesla Supercharger 0.28 mi ~6 min
Restaurant LongHorn Steakhouse 0.48 mi ~10 min
16746 Southwest Freeway, Sugar Land 77479
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 |
|---|---|---|
| 71351 | TX | Pharmacist primary |
This provider holds licence 71351 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 Pharmacist covers
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care. NUCC Health Care Provider Taxonomy, code 183500000X
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 | 1003492851 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 22, 2021 |
| Last updated | Dec 2, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PHARMD |
| Practice address |
4711 SWEETWATER BLVD Sugar Land, TX 77479 (281) 980-6304 |
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 | 9 | 2 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 9 | 4 | 8 | 1 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.