Diane Asher, NP
Diane Asher, NP is a Nurse Practitioner in Thornton, CO, registered under NPI 1003286303. 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 Thornton, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 635 ft away. The nearest transit stop is 0.30 mi away, served by Eppinger Blvd & Ogden St. A pharmacy sits 0.33 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 25 ft ~1 min
Parking 589 ft ~3 min
Parking 635 ft ~3 min
Restaurant Wendy's 834 ft ~4 min
8970 Washington Street, Thornton 80229
06:00-01:00
Transit 0.24 mi ~5 min
Transit 0.26 mi ~6 min
Convenience Circle K 0.26 mi ~6 min
8801 Washington Street, Thornton 80229
Mo-Sa 05:00-00:00; Su 06:00-00:00
Gas station Conoco 0.26 mi ~6 min
Convenience 7-Eleven 0.27 mi ~6 min
Gas station Circle K 0.27 mi ~6 min
8801 Washington Street, Thornton 80229
Mo-Sa 05:00-00:00; Su 06:00-00:00
Transit Eppinger Blvd & Ogden St 0.30 mi ~7 min
Grocery Walmart Neighborhood Market 0.31 mi ~7 min
850 East 88th Avenue, Thornton 80229
Mo-Su 06:00-24:00
Restaurant Jim's Burger Haven 0.32 mi ~7 min
Pharmacy Walgreens 0.33 mi ~7 min
Restaurant Dunkin' 0.36 mi ~8 min
8775 Washington Street, Thornton 80229
04:30-20:00
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 |
|---|---|---|
| APN.0994885-NP | CO | Nurse Practitioner primary |
This provider holds licence APN.0994885-NP 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 - Nurse Practitioner
- PAC ID
- 8527377993
- Enrollment ID
- I20200115000041
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 Nurse Practitioner covers
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners. NUCC Health Care Provider Taxonomy, code 363L00000X
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 | 1003286303 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 29, 2015 |
| Last updated | May 14, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | NP |
| Practice address |
8990 WASHINGTON ST Thornton, CO 80229 (720) 929-1655 Fax (720) 565-4129 |
| Mailing address |
1735 S PUBLIC RD STE 203 Lafayette, CO 80026 |
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 | 8 | 6 | 3 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 8 | 3 | 3 | 0 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.