William T. Besson III, MD INTERNAL MEDICINE
NPI 1790862753ActiveIndividual· Internal Medicine· Aiken, SC
Internal Medicine (MD INTERNAL MEDICINE) in Aiken, South Carolina, trained at University of South Carolina School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $920,618 for 15,045 claims, against $300,050 paid for services in 2024. Exact Sciences Corporation was the largest of 12 companies reporting payments in 2025, $505.99 in all, mostly food and beverage.
Overview
| NPI | 1790862753 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD INTERNAL MEDICINE |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Sep 30, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 15780 | 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 - Internal Medicine (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,114 |
|---|---|
| Services billed | 6,506 across 48 procedure codes |
| Paid by Medicare | $300,050 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,045 · 35,010 30-day fills |
|---|---|
| Patients | 1,081 |
| Total drug cost | $920,618 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of South Carolina School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Aiken Regional Medical Centers LLCAiken, SC · 5 clinicians
- Aiken Internal Med PAAiken, SC · 2 clinicians
Hospital affiliations
- Aiken Regional Medical CenterAiken, SC
- Piedmont Augusta HospitalAugusta, GA
- Wellstar McG Health, Affiliated With Med ColAugusta, GA
Other facilities
- Centerwell Home HealthHome health agency · Newberry, SC
- Enhabit Home Health AikenHome health agency · Columbia, SC
- Pruitthealth Home Health-Low CountryHome health agency · Bluffton, SC
- Trinity Home Health of AikenHome health agency · Aiken, SC
Industry payments (Open Payments)
- 2025$505.99 · 23 payments from 12 companies
- 2024$813.66 · 48 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $110.70 | 3 |
| Lilly USA, LLC | $87.08 | 4 |
| Boston Scientific Corporation | $67.34 | 3 |
| Astrazeneca Pharmaceuticals LP | $58.20 | 4 |
| Abbott Laboratories | $42.10 | 2 |
What the 2025 payments were for
- Food and Beverage$505.99 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in Aiken · All internal medicine physicians in South Carolina