Mackenna Marie Simpson, PA-C
NPI 1922451103ActiveIndividual· Physician Assistant· Clackamas, OR
Physician Assistant (PA-C) with Providence Health and Services Oregon, practicing in Clackamas, Oregon. Their prescriptions cost Medicare Part D more than their services did: $57,054 for 567 claims, against $5,889 paid for services in 2024. Lists Providence Milwaukie Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1922451103 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jul 22, 2016 |
| Last updated in NPPES | Oct 13, 2021 |
| Certified by provider | Oct 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA179024 | OR |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 174 across 18 procedure codes |
| Paid by Medicare | $5,889 |
Part D prescriptions in 2024
| Prescriptions (claims) | 567 · 1,066 30-day fills |
|---|---|
| Patients | 203 |
| Total drug cost | $57,054 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Providence Health and Services OregonPortland, OR · 1,433 clinicians
Hospital affiliations
- Providence Milwaukie HospitalMilwaukie, OR
- Providence Portland Medical CenterPortland, OR
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 physician assistants in Clackamas · All physician assistants in Oregon