Katherine Silliman Coffey, PA
NPI 1518904135ActiveIndividual· Physician Assistant· Sumter, SC
Physician Assistant (PA) with McLeod Regional Medical Center of the Pee Dee Inc, practicing in Sumter, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $239,382 for 1,803 claims, against $56,774 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $1,489 in all, mostly food and beverage. Lists McLeod Health Clarendon and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1518904135 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | Yes |
| NPI issued | Jun 1, 2006 |
| Last updated in NPPES | Feb 1, 2021 |
| Certified by provider | Feb 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1071 | 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 | 425 |
|---|---|
| Services billed | 1,149 across 62 procedure codes |
| Paid by Medicare | $56,774 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,803 · 3,951 30-day fills |
|---|---|
| Patients | 322 |
| Total drug cost | $239,382 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- McLeod Regional Medical Center of the Pee Dee IncMyrtle Beach, SC · 406 clinicians
Hospital affiliations
- McLeod Health ClarendonManning, SC
- McLeod Regional Medical Center-Pee DeeFlorence, SC
- Prisma Health Tuomey HospitalSumter, SC
Other facilities
- Amedisys Home Health of LexingtonHome health agency · Lexington, SC
Industry payments (Open Payments)
- 2025$1,489 · 87 payments from 19 companies
- 2024$986.79 · 63 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $246.03 | 17 |
| Novo Nordisk Inc | $212.01 | 10 |
| Amgen Inc. | $156.68 | 9 |
| Abbvie Inc. | $155.91 | 12 |
| Otsuka America Pharmaceutical, Inc. | $96.11 | 5 |
What the 2025 payments were for
- Food and Beverage$1,489 · 87 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 physician assistants in Sumter · All physician assistants in South Carolina