Stacey Ann Williamson, PA-C
NPI 1457667891ActiveIndividual· Physician Assistant· Tigard, OR
Physician Assistant (PA-C) with Fairview Heights Medical Group SC, practicing in Tigard, Oregon. Their prescriptions cost Medicare Part D more than their services did: $1,177,183 for 1,829 claims, against $19,753 paid for services in 2024. Lilly USA, LLC was the largest of 16 companies reporting payments in 2025, $406.20 in all, mostly food and beverage.
Overview
| NPI | 1457667891 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Aug 24, 2010 |
| Last updated in NPPES | Jul 6, 2021 |
| Certified by provider | Jul 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA178932 | OR |
| Physician Assistant | 363A00000X | 2020025684 | MO |
| Physician Assistant | 363A00000X | 085008245 | IL |
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 (IL); Practitioner - Physician Assistant (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 172 |
|---|---|
| Services billed | 676 across 6 procedure codes |
| Paid by Medicare | $19,753 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,829 · 3,825 30-day fills |
|---|---|
| Patients | 428 |
| Total drug cost | $1,177,183 |
| Generic share | 29% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Fairview Heights Medical Group SCAlton, IL · 444 clinicians
Industry payments (Open Payments)
- 2025$406.20 · 22 payments from 16 companies
- 2024$1,065 · 50 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $54.43 | 2 |
| Medtronic, Inc. | $52.32 | 2 |
| Xeris Pharmaceuticals, Inc. | $35.71 | 2 |
| Amgen Inc. | $35.03 | 2 |
| Beta Bionics, Inc. | $24.89 | 3 |
What the 2025 payments were for
- Food and Beverage$406.20 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 50 physician assistants in Tigard · All physician assistants in Oregon