KAREN WU, O.D., INC.
KAREN WU, O.D., INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003505066, based in Riverside, CA. It is classified under Optometrist.
Getting there
Here is what surrounds this office in Riverside, based on OpenStreetMap data collected Oct 1, 2026. Parking is available about 0.30 mi away. There is EV charging 0.23 mi from the office (Riverside - Canyon Springs Parkway Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.39 mi away, served by Box Springs & Douglasis. A pharmacy sits 0.22 mi from the entrance (Walmart Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.45 mi away.
Getting here and what is nearby
Pharmacy Walmart Pharmacy 0.22 mi ~5 min
Grocery Walmart Supercenter 0.22 mi ~5 min
6250 Valley Springs Parkway, Riverside 92507
Mo-Su 06:00-24:00
EV charging Riverside - Canyon Springs Parkway Supercharger 0.23 mi ~5 min
Parking 0.24 mi ~5 min
Restaurant John's Incredible Pizza 0.27 mi ~6 min
6187 Valley Springs Parkway, Riverside 92507
Mo-Th 11:00-21:30; Fr 11:00-23:00; Sa 10:00-23:00; Su 10:00-21:30
Parking 0.30 mi ~7 min
Restaurant Starbucks 0.32 mi ~7 min
Transit Box Springs & Clark 0.33 mi ~7 min
Transit Box Springs & Clark 0.34 mi ~7 min
Gas station Sam's Club 0.34 mi ~7 min
6363 Valley Springs Parkway, Riverside 92507
Restaurant Chick-fil-A 0.38 mi ~8 min
2885 Canyon Springs Parkway, Riverside 92507
Mo-Sa 06:30-22:00
Transit Box Springs & Douglasis 0.39 mi ~8 min
Convenience ampm 0.44 mi ~9 min
Coffee Nubi Yogurt 0.45 mi ~9 min
Coffee Starbucks 0.45 mi ~10 min
Gas station Arco 0.46 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 | 1003505066 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 4, 2023 |
| Last updated | Mar 4, 2026 |
| Status | Active |
| Practice address |
2755 CANYON SPRINGS PKWY Riverside, CA 92507 (951) 901-0805 |
| Mailing address |
1831 S GLADYS AVE UNIT A San Gabriel, CA 91776 |
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 | 5 | 0 | 5 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 3 |
Sum = 34 · next multiple of 10 = 40 · 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.