William Gourdin McMaster Jr., M.D.
NPI 1124345574ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Columbia, SC
Thoracic Surgery (Cardiothoracic Vascular Surgery) (M.D.) in Columbia, South Carolina, trained at Medical University of South Carolina College of Medicine (class of 2010). Medicare paid $65,508 for services to 64 patients in 2024. Abbott Laboratories was the largest of 9 companies reporting payments in 2025, $1,139 in all, mostly food and beverage.
Overview
| NPI | 1124345574 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 26, 2010 |
| Last updated in NPPES | Apr 13, 2023 |
| Certified by provider | Apr 13, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 89449 | SC |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 50674 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | TN |
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 - Thoracic Surgery (SC); Practitioner - Thoracic Surgery (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 64 |
|---|---|
| Services billed | 266 across 45 procedure codes |
| Paid by Medicare | $65,508 |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Thoracic Surgery |
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)
- 2025$1,139 · 54 payments from 9 companies
- 2024$1,274 · 46 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $601.51 | 32 |
| Atricure, Inc. | $342.91 | 13 |
| Peerless Surgical Inc. | $44.72 | 1 |
| Dilon Technologies, Inc. | $38.95 | 1 |
| Edwards Lifesciences Corporation | $37.71 | 2 |
What the 2025 payments were for
- Food and Beverage$1,139 · 54 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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