Mackenzie Blair Johnson, PA-C
NPI 1386383032ActiveIndividual· Physician Assistant· Columbia, SC
Physician Assistant (PA-C) in Columbia, South Carolina, trained at University of South Carolina School of Medicine (class of 2022). 385 Medicare patients in 2024, $60,763 paid; nearly all of their 127 Part D prescriptions were generic (93%). Peerless Surgical Inc. was the largest of 2 companies reporting payments in 2025, $129.94 in all, mostly food and beverage.
Overview
| NPI | 1386383032 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 1, 2022 |
| Last updated in NPPES | Jun 28, 2022 |
| Certified by provider | Jun 28, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 4443 | SC |
| Physician Assistant | 363A00000X | — | SC |
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 (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 385 |
|---|---|
| Services billed | 2,568 across 82 procedure codes |
| Paid by Medicare | $60,763 |
Part D prescriptions in 2024
| Prescriptions (claims) | 127 · 129 30-day fills |
|---|---|
| Patients | 76 |
| Total drug cost | $2,536 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Physician Assistant |
Medical group
- Midlands Orthopaedics and Neurosurgery PAIrmo, SC · 41 clinicians
Hospital affiliations
- KershawhealthCamden, SC
- Musc Health Columbia Medical Center DowntownColumbia, SC
- Musc Medical CenterCharleston, SC
Other facilities
- Amedisys Home Health of CamdenHome health agency · Camden, SC
- Amedisys Home Health of LexingtonHome health agency · Lexington, SC
Industry payments (Open Payments)
- 2025$129.94 · 3 payments from 2 companies
- 2024$227.00 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Peerless Surgical Inc. | $93.70 | 2 |
| Depuy Synthes Sales Inc. | $36.24 | 1 |
What the 2025 payments were for
- Food and Beverage$129.94 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 251 physician assistants in Columbia · All physician assistants in South Carolina