STERLING OPTICAL#541
STERLING OPTICAL#541 is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003008160, based in Ontario, CA. It is classified under Optometrist.
Getting there
Here is what surrounds this office in Ontario, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 903 ft away. There is EV charging 0.34 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.31 mi away. A pharmacy sits 0.48 mi from the entrance (Costco Pharmacy), 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
Coffee Starbucks 565 ft ~3 min
Parking 568 ft ~3 min
Parking 585 ft ~3 min
Transit 657 ft ~3 min
Transit 664 ft ~3 min
Restaurant Chipotle 726 ft ~3 min
Restaurant Bone & Broth 828 ft ~4 min
4320 Suite A Mills Circle, Ontario 91764
Mo-Su 10:00-21:00
Restaurant McDonald's 848 ft ~4 min
Parking 903 ft ~4 min
EV charging Tesla Supercharger 0.20 mi ~4 min
Gas station 76 0.22 mi ~5 min
EV charging Tesla Destination Charger 0.25 mi ~5 min
Coffee Starbucks 0.27 mi ~6 min
Convenience ampm 0.29 mi ~6 min
Hotel Hampton Inn & Suites Ontario 0.29 mi ~6 min
Transit 0.31 mi ~7 min
Hotel Courtyard Ontario Rancho Cucamonga 0.33 mi ~7 min
11525 Mission Vista Drive, Rancho Cucamonga 91730
EV charging Tesla Supercharger 0.34 mi ~7 min
Gas station Chevron 0.34 mi ~7 min
791 Milliken Avenue, Ontario 91764
Hotel Hilton Garden Inn Ontario/Rancho Cucamonga 0.34 mi ~7 min
11481 Mission Vista Drive, Rancho Cucamonga 91730
Gas station Costco Gasoline 0.40 mi ~9 min
11800 4th Street, 91730
Mo-Fr 05:30-22:00; Sa 06:00-20:30; Su 06:00-19:30
Grocery Grocery Outlet 0.40 mi ~8 min
4420 Ontario Mills Parkway, Ontario 91764
Mo-Su 08:00-21:00
Coffee Starbucks 0.44 mi ~9 min
Pharmacy Costco Pharmacy 0.48 mi ~10 min
11800 4th St, Rancho Cucamonga 91730
Mo-Fr 09:00-17:00; Sa 09:00-18:00
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 |
|---|---|---|
| 5677 | CA | Optometrist primary |
This provider holds licence 5677 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 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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003008160 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Aug 13, 2007 |
| Last updated | Aug 13, 2007 |
| Status | Active |
| Practice address |
1 MILLS CIR 1016 Ontario, CA 91764 (909) 481-1083 Fax (909) 484-2060 |
| Other names |
Flow Optical Inc Former Legal Name |
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 | 0 | 8 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 7 | 1 | 3 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
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.