Cary Walker, DO
Cary Walker, DO is a provider specialising in Student in an Organized Health Care Education/Training Program in Lone Tree, CO, registered under NPI 1003201120. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Lone Tree, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 509 ft away at Physician Parking Only. The nearest transit stop is 0.44 mi away, served by Park Meadows Dr & Lincoln Ave Farside. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Parking Campus Employee Parking Only 382 ft ~2 min
Parking Physician Parking Only 477 ft ~2 min
Parking Physician Parking Only 509 ft ~2 min
Coffee Monk and Mongoose Coffee 0.35 mi ~7 min
9580 RidgeGate Parkway, Lone Tree 80124
Mo-Su 06:30-18:30
Transit Park Meadows Dr & Lincoln Ave Nearside 0.42 mi ~9 min
Restaurant Sierra 0.42 mi ~9 min
10680 Cabela Drive, Lone Tree 80124
Transit Park Meadows Dr & Lincoln Ave Farside 0.44 mi ~9 min
Hotel Hampton 0.47 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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003201120 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 6, 2015 |
| Last updated | Oct 28, 2016 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | DO |
| Practice address |
10101 RIDGEGATE PARKWAY Lone Tree, CO 80124 (720) 874-2406 |
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 | 2 | 0 | 1 | 1 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 2 | 1 | 4 |
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.