William Sumners Mayo, D.O.
NPI 1215931738ActiveIndividual· Ophthalmology· Oxford, MS
Ophthalmology (D.O.) in Oxford, Mississippi, licensed in MS, with an NPI issued in June 2005. Their prescriptions cost Medicare Part D more than their services did: $23,763 for 270 claims, against $10,830 paid for services in 2024. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $103.88 in all, mostly food and beverage.
Overview
| NPI | 1215931738 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 13, 2005 |
| Last updated in NPPES | Mar 31, 2021 |
| Certified by provider | Mar 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 09636 | MS |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 274 across 15 procedure codes |
| Paid by Medicare | $10,830 |
Part D prescriptions in 2024
| Prescriptions (claims) | 270 · 464 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $23,763 |
| Generic share | 63% of claims |
Industry payments (Open Payments)
- 2025$103.88 · 4 payments from 3 companies
- 2024$86.79 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $61.04 | 2 |
| Rxsight Inc | $27.77 | 1 |
| Johnson & Johnson Surgical Vision, Inc. | $15.07 | 1 |
What the 2025 payments were for
- Food and Beverage$103.88 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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