Erin Elizabeth Riggle, M.D.
NPI 1003004771ActiveIndividual· Internal Medicine, Critical Care Medicine· Littleton, CO
Internal Medicine, Critical Care Medicine (M.D.) with Poudre Valley Medical Group LLC, practicing in Littleton, Colorado. Their prescriptions cost Medicare Part D more than their services did: $486,805 for 869 claims, against $118,931 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 26 companies reporting payments in 2025, $3,184 in all, mostly food and beverage. Lists Adventhealth Castle Rock and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1003004771 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 9, 2007 |
| Last updated in NPPES | Mar 22, 2023 |
| Certified by provider | Mar 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | DR.0047930 | CO |
| Internal Medicine | 207R00000X | DR.0047930 | CO |
| Internal Medicine, Pulmonary Disease | 207RP1001X | DR.0047930 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Critical Care (Intensivists) (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 412 |
|---|---|
| Services billed | 1,557 across 30 procedure codes |
| Paid by Medicare | $118,931 |
Part D prescriptions in 2024
| Prescriptions (claims) | 869 · 1,365 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $486,805 |
| Generic share | 33% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Poudre Valley Medical Group LLCDenver, CO · 2,440 clinicians
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth LittletonLittleton, CO
- Uchealth Highlands Ranch HospitalHighlands Ranch, CO
- University of Colorado Hospital AuthorityAurora, CO
Industry payments (Open Payments)
- 2025$3,184 · 121 payments from 26 companies
- 2024$1,539 · 75 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $610.03 | 22 |
| Astrazeneca Pharmaceuticals LP | $588.80 | 25 |
| Genzyme Corporation | $408.54 | 15 |
| Regeneron Healthcare Solutions, Inc. | $292.57 | 10 |
| United Therapeutics Corporation | $179.53 | 3 |
What the 2025 payments were for
- Food and Beverage$3,173 · 120 payments
- Education$10.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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