Nancy Corson
Nancy Corson is a Specialist in Littleton, CO, registered under NPI 1003218686. 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 Littleton, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 930 ft away. The nearest transit stop is 0.23 mi away, served by South Broadway & Euclid Avenue. If you arrive early, there is a coffee shop 0.27 mi away.
Getting here and what is nearby
Parking 525 ft ~2 min
Convenience Mobil Mart 815 ft ~4 min
6515 South Broadway, Littleton 80121
Parking 844 ft ~4 min
Transit South Broadway & Panama Drive 897 ft ~4 min
Gas station Mobil 877 ft ~4 min
05:30-23:30
Parking 930 ft ~4 min
Gas station Exxon 1,025 ft ~4 min
Gas station Conoco 991 ft ~4 min
Restaurant McDonald's 0.22 mi ~5 min
6300 South Broadway, Littleton 80120
05:00-20:00
Transit South Broadway & Weaver Place 0.23 mi ~5 min
Transit South Broadway & Euclid Avenue 0.23 mi ~5 min
Coffee Atlas Coffee 0.27 mi ~6 min
Restaurant Pho Broadway 0.34 mi ~7 min
6645 South Broadway, Littleton 80121
Tu-Fr 10:00-20:30; Sa 11:00-20:30; Su 11:00-20:00
Restaurant Wang's 0.44 mi ~9 min
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 |
|---|---|---|
| OT0002359 | CO | Specialist primary |
This provider holds licence OT0002359 issued in CO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Specialist covers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. NUCC Health Care Provider Taxonomy, code 174400000X
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 | 1003218686 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 25, 2014 |
| Last updated | Sep 25, 2014 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
228 W VALLEYVIEW AVE Littleton, CO 80120 (303) 797-1230 |
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 | 1 | 8 | 6 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 1 | 7 | 6 | 7 |
Sum = 54 · next multiple of 10 = 60 · 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.