GARY S. YAMADA, OPTOMETRIST
GARY S. YAMADA, OPTOMETRIST is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003090580, based in Sacramento, CA. It is classified under Optometrist.
Getting there
Here is what surrounds this office in Sacramento, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 285 ft away. The nearest transit stop is 802 ft away, served by Florin + East Pkwy. If you arrive early, there is a coffee shop 0.24 mi away.
Getting here and what is nearby
Transit Florin + Bowling 78 ft ~1 min
Gas station Arco 163 ft ~1 min
4421 Florin Road, Sacramento 95823
Parking 136 ft ~1 min
Convenience ampm 225 ft ~1 min
4421 Florin Road, Sacramento 95823
Parking 274 ft ~2 min
Parking 285 ft ~2 min
Restaurant Jack in the Box 314 ft ~2 min
Restaurant Taco Bell 329 ft ~2 min
4244 Florin Road, Sacramento 95823
Mo-Th 08:00-03:00; Fr-Sa 08:00-04:00; Su 08:00-03:00
Transit Florin + Bowling 404 ft ~2 min
Restaurant Subway 503 ft ~2 min
Coffee The Flame Cafe 715 ft ~3 min
Transit Florin + East Pkwy 802 ft ~4 min
Grocery 99 Ranch Market 830 ft ~4 min
Coffee Starbucks 986 ft ~4 min
Gas station 76 0.22 mi ~5 min
Gas station Chevron 0.22 mi ~5 min
Coffee Dutch Bros. Coffee 0.24 mi ~5 min
Grocery FoodMaxx 0.35 mi ~7 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 | 1003090580 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 20, 2007 |
| Last updated | Dec 20, 2007 |
| Status | Active |
| Practice address |
4433 FLORIN RD SUITE 890 Sacramento, CA 95823 (916) 393-5151 Fax (916) 392-6130 |
| Other identifiers |
GSD004750
· Medicaid (CA) |
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 | 9 | 0 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 0 | 5 | 7 |
Sum = 50 · next multiple of 10 = 50 · 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.