Aaron Winstead, OD
Aaron Winstead, OD is a provider specialising in Optometrist in Denver, CO, registered under NPI 1003338419.
Getting there
Here is what surrounds this office in Denver, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 195 ft away. There is EV charging 0.26 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.28 mi away. If you arrive early, there is a coffee shop 948 ft away.
Getting here and what is nearby
Restaurant Linger Restaurant 44 ft ~1 min
2030 West 30th Avenue, Denver 80211
Mo 17:00-22:00; Tu-Th 11:30-14:30, 17:00-22:00; Fr 11:30-14:30, 17:00-23:00; Sa, Su 10:00-14:30, 17:00-23:00
Parking 100 ft ~1 min
Restaurant Little Man Ice Cream 89 ft ~1 min
2620 16th Street, Denver 80211
Mo-Th 12:00-22:00, Sa 11:00-24:00, Su 11:00-22:00
Restaurant El Five 153 ft ~1 min
2930 Umatilla Street, Denver 80211
Coffee Maci Cafe 203 ft ~1 min
1575 Boulder Street, Denver 80211
Parking 231 ft ~1 min
2926 Umatilla Street, Denver 80211
Parking 195 ft ~1 min
Coffee Metropolis Coffee 760 ft ~3 min
1661 Central Street, Denver 80211
Coffee Method Collective 948 ft ~4 min
2011 West 32nd Avenue, Denver 80211
Hotel Artesian 0.24 mi ~5 min
Transit 0.26 mi ~6 min
EV charging 0.26 mi ~6 min
Transit 0.27 mi ~6 min
Hotel Fairfield Inn & Suites Denver Downtown 0.27 mi ~6 min
Transit 0.28 mi ~6 min
Hotel Hampton Inn & Suites Denver-Speer Boulevard 0.29 mi ~6 min
Convenience Conoco 0.32 mi ~7 min
2727 Speer Boulevard, Denver 80211
Gas station Speer and Zuni Conoco 0.33 mi ~7 min
2727 Zuni Street, Denver 80211
Gas station Shell 0.35 mi ~7 min
2757 Speer Boulevard, Denver 80211
Convenience Shell 0.36 mi ~8 min
2757 Speer Boulevard, Denver 80211
Grocery K Food Market 0.40 mi ~9 min
2538 West 32nd Avenue, Denver 80211
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 |
|---|---|---|
| 3357 | CO | Optometrist primary |
| 9277T | TX | Optometrist |
Licences are recorded in 2 states: CO, TX. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: Colorado and Texas. The practice address on file is in Denver, CO, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 152W00000X | Optometrist | 3357 | CO | primary |
| 152W00000X | Optometrist | 9277T | TX |
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 | 1003338419 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 7, 2017 |
| Last updated | Sep 16, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | OD |
| Practice address |
2040 W 30TH AVE Denver, CO 80211 (720) 826-0123 Fax (720) 726-0124 |
| Mailing address |
4695 S LIPAN ST Englewood, CO 80110 |
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 | 3 | 3 | 8 | 4 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 3 | 7 | 4 | 2 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.