William Stewart Horsley, M.D.
NPI 1841341369ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Florence, SC
Thoracic Surgery (Cardiothoracic Vascular Surgery) (M.D.) in Florence, South Carolina, trained at University of Alabama School of Medicine (class of 1989). Mostly services rather than prescriptions: Medicare paid $62,156 for 121 patients in 2024, with only 25 Part D claims. Abiomed was the largest of 8 companies reporting payments in 2025, $872.86 in all, mostly food and beverage.
Overview
| NPI | 1841341369 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 12, 2007 |
| Last updated in NPPES | Sep 10, 2026 |
| Certified by provider | Sep 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 97964 | 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 - Thoracic Surgery (AL); Practitioner - Thoracic Surgery (FL); Practitioner - Cardiac Surgery (MS); Practitioner - Cardiac Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 121 |
|---|---|
| Services billed | 223 across 43 procedure codes |
| Paid by Medicare | $62,156 |
Part D prescriptions in 2024
| Prescriptions (claims) | 25 · 29 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $1,593 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Thoracic Surgery |
Medical groups
- Lee Health System IncFort Myers, FL · 1,428 clinicians
- Agnesian Healthcare IncWaupun, WI · 388 clinicians
- Baptist Health Centers LLCBirmingham, AL · 198 clinicians
- Cardiothoracic and Vascular Surgical Associates PAJacksonville, FL · 85 clinicians
Hospital affiliations
- Baptist Health Medical Center - JacksonvilleJacksonville, FL
- HCA Florida Memorial HospitalJacksonville, FL
- HCA Florida Orange Park HospitalOrange Park, FL
- Princeton Baptist Medical CenterBirmingham, AL
Other facilities
- Precise Home Care LLCHome health agency · Jacksonville, FL
Industry payments (Open Payments)
- 2025$872.86 · 23 payments from 8 companies
- 2024$1,688 · 18 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $481.80 | 12 |
| Edwards Lifesciences Corporation | $156.66 | 3 |
| Atricure, Inc. | $94.23 | 1 |
| Acera Surgical, Inc. | $44.09 | 2 |
| Ethicon US, LLC | $36.26 | 2 |
What the 2025 payments were for
- Food and Beverage$872.86 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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