John William Karth, M.D.
NPI 1588862320ActiveIndividual· Ophthalmology· Eugene, OR
Ophthalmology (M.D.) in Eugene, Oregon, trained at Johns Hopkins University School of Medicine (class of 2002). In 2024 Medicare paid $5,276,381 for 1,235 patients, and Part D covered 945 of their prescriptions, 68% of them generic. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $537.50 in all, mostly food and beverage.
Overview
| NPI | 1588862320 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 3, 2007 |
| Last updated in NPPES | Apr 6, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | MD27623 | OR |
| Ophthalmology, Retina Specialist | 207WX0107X | MD27623 | OR |
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 - Ophthalmology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,235 |
|---|---|
| Services billed | 122,773 across 47 procedure codes |
| Paid by Medicare | $5,276,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 945 · 1,302 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $64,633 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Ophthalmology |
Medical group
- Oregon Eye Consultants LLCEugene, OR · 8 clinicians
Industry payments (Open Payments)
- 2025$537.50 · 19 payments from 8 companies
- 2024$568.69 · 22 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $148.51 | 7 |
| Genentech USA, Inc. | $114.31 | 5 |
| Rxsight Inc | $100.48 | 1 |
| Alcon Vision LLC | $66.77 | 1 |
| Regeneron Healthcare Solutions, Inc. | $41.09 | 2 |
What the 2025 payments were for
- Food and Beverage$537.50 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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