Erin Riggle, M.D.
Erin Riggle, M.D. is a Critical Care Medicine (Internal Medicine) Physician in Littleton, CO, registered under NPI 1003004771. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Aug 28, 2026. Parking is available about 179 ft away. The nearest transit stop is 883 ft away, served by South Broadway & West Fremont Avenue. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 83 ft ~1 min
Parking 133 ft ~1 min
Parking 179 ft ~1 min
Transit South Broadway & West Dry Creek Road 666 ft ~3 min
Transit South Broadway & Dry Creek Road 716 ft ~3 min
Gas station Sinclair 776 ft ~3 min
Restaurant Culver's 799 ft ~4 min
7440 South Broadway, Littleton 80122
Mo-Su 10:00-22:00
Convenience Sinclair 845 ft ~4 min
South Broadway, Centennial 80122
Transit South Broadway & West Fremont Avenue 883 ft ~4 min
Coffee Starbucks 0.21 mi ~5 min
7330 South Broadway, Littleton 80122
Mo-Fr 05:00-19:30, Sa-Su 05:30-19:30
Gas station Imart 0.31 mi ~7 min
Restaurant The Shack 0.41 mi ~9 min
151 West Mineral Avenue, Littleton 80120
Grocery Safeway 0.45 mi ~9 min
181 West Mineral Avenue, Littleton 80120
06:00-23:00
Coffee Starbucks 0.47 mi ~10 min
Restaurant Sunflower Asian Cafe 0.47 mi ~10 min
91 West Mineral Avenue, Littleton 80120
Su-Th 11:00-21:30; Fr-Sa 11:00-22:00
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 |
|---|---|---|
| DR.0047930 | CO | Internal Medicine Physician |
| DR.0047930 | CO | Pulmonary Disease Physician |
| DR.0047930 | CO | Critical Care Medicine (Internal… primary |
This provider holds licence DR.0047930 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 - Critical Care (intensivists)
- PAC ID
- 7911046602
- Enrollment ID
- I20091210000085
Medicare enrolment is recorded as approved under the provider type Practitioner - Critical Care (intensivists). 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 Critical Care Medicine covers
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists. NUCC Health Care Provider Taxonomy, code 207RC0200X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | DR.0047930 | CO | |
| 207RP1001X | Pulmonary Disease Physician Pulmonary Disease | DR.0047930 | CO | |
| 207RC0200X | Critical Care Medicine (Internal Medicine) Physician Critical Care Medicine | DR.0047930 | CO | primary |
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 | 1003004771 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 9, 2007 |
| Last updated | Mar 22, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D. |
| Practice address |
15 W DRY CREEK CIR Littleton, CO 80120 (303) 952-1100 Fax (303) 952-8185 |
| Mailing address |
15 W. DRY CREEK CIR Littleton, CO 80120 |
| Other identifiers |
46501053
· Medicaid (CO) |
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 | 0 | 0 | 4 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 8 | 7 | 5 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.