Ellen Olivia Farrell, PA-C
NPI 1386350171ActiveIndividual· Physician Assistant· Sioux Falls, SD
Physician Assistant (PA-C) with Avera McKennan and 1 other group, practicing in Sioux Falls, South Dakota. Their prescriptions cost Medicare Part D more than their services did: $147,696 for 1,072 claims, against $16,830 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 8 companies reporting payments in 2025, $776.18 in all, mostly food and beverage. Lists Avera McKennan Hospital & University Health Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1386350171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jan 25, 2023 |
| Last updated in NPPES | Feb 9, 2024 |
| Certified by provider | Feb 9, 2024 |
| Reactivated | Feb 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1420 | SD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 424 across 8 procedure codes |
| Paid by Medicare | $16,830 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,072 · 1,583 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $147,696 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Avera McKennanSioux Falls, SD · 959 clinicians
- St Michael's Hospital, Inc.Tyndall, SD · 17 clinicians
Hospital affiliations
- Avera McKennan Hospital & University Health CenterSioux Falls, SD
- Lakes Regional HealthcareSpirit Lake, IA
- Prairie Lakes Healthcare System, IncWatertown, SD
- Sanford Usd Medical CenterSioux Falls, SD
- Spencer Municipal HospitalSpencer, IA
Industry payments (Open Payments)
- 2025$776.18 · 13 payments from 8 companies
- 2024$2,976 · 26 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $243.93 | 2 |
| Genentech, Inc. | $194.49 | 2 |
| E.R. Squibb & Sons, L.L.C. | $120.78 | 1 |
| Alexion Pharmaceuticals, Inc. | $68.56 | 1 |
| Abbvie Inc. | $44.10 | 2 |
What the 2025 payments were for
- Food and Beverage$776.18 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 255 physician assistants in Sioux Falls · All physician assistants in South Dakota