Katherine Serafen Koonce, PA-C
NPI 1194389353ActiveIndividual· Physician Assistant· Sanford, NC
Physician Assistant (PA-C) in Sanford, North Carolina, trained at Mercer University School of Medicine (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $16,174 for 271 claims, against $4,315 paid for services in 2024. Janssen Biotech, Inc. was the largest of 16 companies reporting payments in 2025, $3,469 in all, mostly food and beverage.
Overview
| NPI | 1194389353 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 23, 2019 |
| Last updated in NPPES | Oct 22, 2026 |
| Certified by provider | Oct 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0010-13643 | NC |
| Physician Assistant | 363A00000X | 9798 | GA |
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 (GA); Practitioner - Physician Assistant (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 61 across 20 procedure codes |
| Paid by Medicare | $4,315 |
Part D prescriptions in 2024
| Prescriptions (claims) | 271 · 474 30-day fills |
|---|---|
| Patients | 86 |
| Total drug cost | $16,174 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Mercer University School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Physician Assistant |
Medical group
- Sanford Dermatology, PLLCLillington, NC · 5 clinicians
Industry payments (Open Payments)
- 2025$3,469 · 103 payments from 16 companies
- 2024$1,112 · 44 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $1,458 | 16 |
| Ucb, Inc. | $378.20 | 17 |
| Abbvie Inc. | $362.30 | 17 |
| Regeneron Healthcare Solutions, Inc. | $197.73 | 7 |
| E.R. Squibb & Sons, L.L.C. | $173.78 | 10 |
What the 2025 payments were for
- Food and Beverage$2,331 · 101 payments
- Consulting Fee$1,125 · 1 payment
- Education$13.17 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 physician assistants in Sanford · All physician assistants in North Carolina