John W. Barnhart, O.D.
NPI 1407975113ActiveIndividual· Optometrist· Warren, OH
Optometrist (O.D.) in Warren, Ohio, trained at Ohio State University - College of Optometry (class of 1991). In 2024 Medicare paid $25,307 for 190 patients, and Part D covered 245 of their prescriptions, 57% of them generic. Alcon Vision LLC was the largest of 4 companies reporting payments in 2025, $485.83 in all, mostly food and beverage.
Overview
| NPI | 1407975113 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 27, 2007 |
| Last updated in NPPES | Oct 2, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 4265 | OH |
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 (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 190 |
|---|---|
| Services billed | 1,802 across 26 procedure codes |
| Paid by Medicare | $25,307 |
Part D prescriptions in 2024
| Prescriptions (claims) | 245 · 362 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $32,058 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | Ohio State University - College of Optometry |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$485.83 · 8 payments from 4 companies
- 2024$413.18 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $299.19 | 5 |
| Lkc Technologies, Inc. | $120.13 | 1 |
| Coopervision Inc. | $47.43 | 1 |
| Bausch & Lomb Americas Inc. | $19.08 | 1 |
What the 2025 payments were for
- Food and Beverage$485.83 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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