Brian Williams, OD
Brian Williams, OD is a provider specialising in Optometrist in Aurora, CO, registered under NPI 1003477555.
Getting there
Here is what surrounds this office in Aurora, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 0.48 mi away. There is EV charging 0.43 mi from the office (Electrify America Walmart 1492) — useful if you are driving in from out of town. The nearest transit stop is 322 ft away, served by S Abilene St & E Mississippi Ave. A pharmacy sits 0.37 mi from the entrance (Walmart Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 687 ft away.
Getting here and what is nearby
Transit S Abilene St & E Mississippi Ave 113 ft ~1 min
Transit E Mississippi Ave & S Abilene St 128 ft ~1 min
EV charging Tesla Supercharger 211 ft ~1 min
Transit S Abilene St & E Mississippi Ave 322 ft ~2 min
Restaurant Tokyo Joe's 296 ft ~2 min
13950 East Mississippi Avenue, Aurora 80012
Mo-Su 10:45-20:30
Restaurant Little Caesars 311 ft ~2 min
13950 East Mississippi Avenue, Aurora 80012
Mo-Th,Su 10:00-23:00; Fr-Sa 10:00-24:00
Coffee Starbucks 360 ft ~2 min
13881 East Mississippi Avenue, Aurora 80012
Su 05:30-20:00; Mo-Sa 05:00-21:00
Parking 386 ft ~2 min
Restaurant Fire Wings 344 ft ~2 min
13950 East Mississippi Avenue, Aurora 80012
Parking 442 ft ~2 min
Coffee Lucy Coffee 687 ft ~3 min
14048 East Mississippi Avenue
Hotel La Quinta Inn Denver Aurora 681 ft ~3 min
Gas station Sam's Club 0.20 mi ~5 min
880 South Abilene Street, 80012
Hotel Best Western Plus Gateway Inn & Suites 0.34 mi ~7 min
Grocery Walmart Supercenter 0.35 mi ~7 min
14000 East Exposition Avenue, Aurora 80012
Mo-Su 06:00-22:00
EV charging GE WattStation 0.36 mi ~8 min
Pharmacy Omdera Pharmacy 0.36 mi ~8 min
1330 South Potomac Street, Aurora 80012
Mo-Fr 09:00-18:00; Sa 09:00-13:00; Su off
Pharmacy Walmart Pharmacy 0.37 mi ~8 min
Convenience Maverik 0.42 mi ~9 min
EV charging Electrify America Walmart 1492 0.43 mi ~9 min
Gas station Maverik 0.43 mi ~9 min
Convenience 7-Eleven 0.46 mi ~10 min
Parking 0.48 mi ~10 min
1391 South Potomac Street, Aurora 80012
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 |
|---|---|---|
| 3500 | CO | Optometrist primary |
This provider holds licence 3500 issued in CO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Optometry
- PAC ID
- 6800126855
- Enrollment ID
- I20190918001446
Medicare enrolment is recorded as approved under the provider type Practitioner - Optometry. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
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-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 | 1003477555 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 25, 2019 |
| Last updated | Oct 17, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | OD |
| Practice address |
13955 E MISSISSIPPI AVE Aurora, CO 80012 (303) 695-4999 |
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 | 7 | 7 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 5 | 5 | 1 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.