Gilda Tan
Gilda Tan is a Pharmacist in Fontana, CA, registered under NPI 1003127416.
Getting there
Here is what surrounds this office in Fontana, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 341 ft away. There is EV charging 0.41 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 566 ft away, served by Foothill @ Sierra Eastbound. If you arrive early, there is a coffee shop 621 ft away.
Getting here and what is nearby
Transit Sierra @ Foothill Northbound 173 ft ~1 min
Parking 155 ft ~1 min
Grocery El Super 280 ft ~2 min
Convenience Circle K 311 ft ~2 min
Parking 310 ft ~2 min
Parking 341 ft ~2 min
Transit Sierra @ Barbee Southbound 344 ft ~2 min
Gas station Circle K 378 ft ~2 min
Restaurant Del Taco 397 ft ~2 min
Restaurant Burger King 452 ft ~2 min
16878 Foothill Boulevard, Fontana 92335-8407
06:00-22:00
Restaurant Brother Kitchen 467 ft ~2 min
16970 Foothill Boulevard, Fontana 92336
Transit Foothill @ Sierra Eastbound 566 ft ~3 min
Coffee Starbucks 621 ft ~3 min
Gas station Mobil 648 ft ~3 min
Grocery Smart & Final 702 ft ~3 min
Grocery Stater Bros. 0.27 mi ~6 min
8228 Sierra Avenue, Fontana 92335
Mo-Su 06:00-23:00
EV charging eVgo 0.40 mi ~9 min
EV charging ChargePoint 0.41 mi ~9 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 |
|---|---|---|
| 47324 | CA | Pharmacist primary |
This provider holds licence 47324 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 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 | 1003127416 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 30, 2010 |
| Last updated | Jun 30, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
16910 FOOTHILL BLVD Fontana, CA 92335 (909) 350-0493 Fax (909) 350-2025 |
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 | 1 | 2 | 7 | 4 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 5 | 4 | 2 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.