Stacy Cwach
NPI 1790233591ActiveIndividual· Physician Assistant· Pierre, SD
Physician Assistant with Avera St Marys, practicing in Pierre, South Dakota. Their prescriptions cost Medicare Part D more than their services did: $185,505 for 2,262 claims, against $38,450 paid for services in 2024. Lilly USA, LLC was the largest of 15 companies reporting payments in 2025, $916.67 in all, mostly food and beverage. Lists Avera St Mary's Hospital as a hospital affiliation.
Overview
| NPI | 1790233591 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Sep 21, 2016 |
| Last updated in NPPES | Sep 21, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1052 | SD |
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 - Physician Assistant (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 258 |
|---|---|
| Services billed | 646 across 38 procedure codes |
| Paid by Medicare | $38,450 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,262 · 4,240 30-day fills |
|---|---|
| Patients | 206 |
| Total drug cost | $185,505 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Avera St MarysPierre, SD · 97 clinicians
Hospital affiliation
- Avera St Mary's HospitalPierre, SD
Other facilities
- Avera @ HomeHome health agency · Pierre, SD
Industry payments (Open Payments)
- 2025$916.67 · 54 payments from 15 companies
- 2024$1,086 · 68 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $207.48 | 12 |
| E.R. Squibb & Sons, L.L.C. | $94.30 | 6 |
| Pfizer Inc. | $91.46 | 6 |
| Vertex Pharmaceuticals Incorporated | $81.00 | 5 |
| Astellas Pharma US Inc | $77.69 | 5 |
What the 2025 payments were for
- Food and Beverage$916.67 · 54 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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