William Lloyd Clark, MD
NPI 1528057890ActiveIndividual· Ophthalmology· West Columbia, SC
Ophthalmology (MD) in West Columbia, South Carolina, trained at University of North Carolina at Chapel Hill School of Medicine (class of 1995). In 2024 Medicare paid $3,853,635 for 743 patients, and Part D covered 567 of their prescriptions, 55% of them generic. Ocular Therapeutix, Inc. was the largest of 10 companies reporting payments in 2025, $46,824 in all, mostly travel and lodging.
Overview
| NPI | 1528057890 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 19, 2005 |
| Last updated in NPPES | Jan 23, 2025 |
| Certified by provider | Jan 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 21749 | SC |
| Ophthalmology | 207W00000X | 9601270 | NC |
| Ophthalmology, Retina Specialist | 207WX0107X | 21749 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (NC); Practitioner - Ophthalmology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 743 |
|---|---|
| Services billed | 26,302 across 37 procedure codes |
| Paid by Medicare | $3,853,635 |
Part D prescriptions in 2024
| Prescriptions (claims) | 567 · 861 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $41,295 |
| Generic share | 55% of claims |
Education and affiliations
| Medical school | University of North Carolina at Chapel Hill School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Ophthalmology |
Medical group
- Retina Associates, PLLCChapel Hill, NC · 17 clinicians
Hospital affiliation
- Carolina East Medical CenterNew Bern, NC
Industry payments (Open Payments)
- 2025$46,824 · 49 payments from 10 companies
- 2024$144,716 · 106 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ocular Therapeutix, Inc. | $40,071 | 21 |
| Regeneron Healthcare Solutions, Inc. | $3,743 | 14 |
| Neurotech Pharmaceuticals, Inc. | $2,194 | 2 |
| Sandoz Inc. | $538.00 | 1 |
| Genentech USA, Inc. | $93.21 | 4 |
What the 2025 payments were for
- Travel and Lodging$28,047 · 7 payments
- Consulting Fee$14,717 · 10 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,210 · 1 payment
- Food and Beverage$1,850 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Ophthalmology providers in West Columbia
- 1891444121
- 1255322806
- 1831222181
- 1497301873
- 1649919515
- 1053873844
- 1336720499
- 1528143021
- 1841289154