William J. Welder, OD
NPI 1629097332ActiveIndividual· Optometrist· Wahpeton, ND
Optometrist (OD) in Wahpeton, North Dakota, trained at Southern California College of Optometry (class of 1995). In 2024 Medicare paid $36,432 for 286 patients, and Part D covered 286 of their prescriptions, 51% of them generic. Coopervision Inc. was the largest of 4 companies reporting payments in 2025, $255.52 in all, mostly food and beverage.
Overview
| NPI | 1629097332 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | Yes |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Jun 16, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | ND0534 | ND |
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 - Optometry (MN); Practitioner - Optometry (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 286 |
|---|---|
| Services billed | 673 across 18 procedure codes |
| Paid by Medicare | $36,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 286 · 416 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $51,033 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Southern California College of Optometry |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Optometry |
Medical group
- Prairie Vision Center PCWahpeton, ND · 2 clinicians
Industry payments (Open Payments)
- 2025$255.52 · 7 payments from 4 companies
- 2024$91.45 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coopervision Inc. | $156.84 | 4 |
| Rxsight Inc | $61.48 | 1 |
| Bausch & Lomb Americas Inc. | $21.25 | 1 |
| Alcon Vision LLC | $15.95 | 1 |
What the 2025 payments were for
- Food and Beverage$255.52 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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