Mark Edward Shaffer, MD
NPI 1639308380ActiveIndividual· Family Medicine· Winnsboro, SC
Family Medicine (MD) in Winnsboro, South Carolina, trained at Harvard Medical School (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $512,414 for 2,958 claims, against $11,602 paid for services in 2024.
Overview
| NPI | 1639308380 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 2, 2009 |
| Last updated in NPPES | Jun 25, 2021 |
| Certified by provider | Jun 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 31836 | 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 - Family Practice (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 157 across 14 procedure codes |
| Paid by Medicare | $11,602 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,958 · 6,244 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $512,414 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Family Practice |
Medical group
- Prisma Health Medical Group-MidlandsColumbia, SC · 1,068 clinicians
Hospital affiliations
- Prisma Health BaptistColumbia, SC
- Prisma Health Baptist ParkridgeColumbia, SC
- Prisma Health Richland HospitalColumbia, SC
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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