Peter Karth, MD
Retina Specialist · North Bend, ORNPI 1508181355
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $80,593 of the $118,734 with a category attached, or 67.9%. 18 manufacturers reported payments, led by Baxter Healthcare at 40.1% of the total. Reporting peaked in 2022 at $55,664 and has fallen 95.4% since, to $2,547 in 2025. Among retina specialist clinicians in OR with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 119 payments — averaging $997.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Baxter Healthcare$48K
- Regeneron Healthcare Solutions, Inc.$34K
- Genentech USA, Inc.$12K
- Carl Zeiss Meditec, Inc.$8K
- Alcon$6K
- Topcon Healthcare Solutions, Inc.$5K
- plus $6K from 12 others
What the payments were for
- Consulting fees$80,59368%
- Speaking & faculty fees$31,71627%
- Travel & lodging$3,0183%
- Food & beverage$3,4083%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Baxter Healthcare | 10 | $47,585 |
| Regeneron Healthcare Solutions, Inc. | 25 | $33,961 |
| Genentech USA, Inc. | 22 | $12,330 |
| Carl Zeiss Meditec, Inc. | 1 | $8,000 |
| Alcon | 7 | $5,697 |
| Topcon Healthcare Solutions, Inc. | 1 | $5,000 |
| Genentech, Inc. | 2 | $3,207 |
| Apellis Pharmaceuticals, Inc. | 4 | $1,627 |
| AbbVie(2 entities) | 27 | $544 |
| Astellas Pharma US Inc | 8 | $180 |
| Welch Allyn | 1 | $150 |
| Novartis | 4 | $134 |
| Glaukos Corporation | 1 | $121 |
| Heidelberg Engineering, Inc. | 1 | $94 |
| ANI Pharmaceuticals, Inc. | 2 | $37 |
| Alimera Sciences, Inc. | 1 | $25 |
| Kala Pharmaceuticals, Inc. | 1 | $24 |
| Lumibird Medical Inc. | 1 | $17 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Hillrom - RetinaVue 700 Imager$47,505
- Hillrom - RetinaVue Network$47,505
- EYLEA$33,499
- VABYSMO$11,076
- FORUM$8,000
- RDX$5,000
- Lucentis$3,925
- Syfovre$1,580
- Constellation$207
- RetinaVue Network$150
- SUSVIMO$133
- iDose$121
How this compares
$118,734 in reported general payments places this provider in the 90th percentile of 36 retina specialist providers in Oregon.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Prednisolone Acetate | 27 | $1,204 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 37 | $387 |
| Latanoprost | 36 | $259 |
| Timolol Maleate | 19 | $132 |
Paid to pharmacies, not to this prescriber.
Other retina specialist in North Bend
- Christopher AdermanTroutdale$211K
- Brian Chan KaiPortland$155K
- John HyattAshland$57K
- Brandon LujanPortland$33K
- Andreas LauerPortland$17K
- Albert EdwardsEugene$9K
- Sirichai PasadhikaPortland$6K
- Ryan ConstantineRedmond$5K
- David WilsonPortland$5K
- Timothy GardHillsboro$3K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.