Daniel Koenig
Optometrist · Ames, IANPI 1235129917
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $6,905 of the $10,856 with a category attached, or 63.6%. Alcon accounts for 86.1% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2021 at $5,293 and has fallen 83.0% since, to $900 in 2025. Among optometrist clinicians in IA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 211 payments — averaging $51.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alcon$9K
- Coopervision Inc.$434
- Bausch & Lomb Americas Inc.$391
- Tarsus Pharmaceuticals, Inc.$262
- Bausch & Lomb, A Division Of Bausch Health US, LLC$153
- Johnson & Johnson Vision Care, Inc.$150
- plus $113 from 4 others
What the payments were for
- Speaking & faculty fees$6,90564%
- Food & beverage$3,93136%
- Gifts$190%
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 |
|---|---|---|
| Alcon | 147 | $9,352 |
| Coopervision Inc. | 25 | $434 |
| Bausch & Lomb Americas Inc. | 13 | $391 |
| Tarsus Pharmaceuticals, Inc. | 6 | $262 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 7 | $153 |
| Johnson & Johnson Vision Care, Inc. | 9 | $150 |
| Carl Zeiss Meditec USA, Inc. | 1 | $71 |
| Carl Zeiss Meditec AG | 1 | $19 |
| AbbVie | 1 | $17 |
| ABB Con-cise Optical Group LLC | 1 | $6 |
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.
- DAILIES TOTAL1$2,131
- Precision 1$2,000
- AIR OPTIX$1,500
- Air Optix plus HydraGlyde$500
- Dailies Aqua Comfort Plus$500
- DAILIES$330
- XDEMVY$120
How this compares
$10,856 in reported general payments places this provider in the 95th percentile of 559 optometrist providers in Iowa.
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 |
|---|---|---|
| CombiganBrimonidine Tartrate/Timolol | 12 | $5,118 |
| Latanoprost | 178 | $1,245 |
| Prednisolone Acetate | 17 | $564 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 18 | $294 |
| Timolol Maleate | 23 | $226 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 19 | $210 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieCombigan | $17 | $5,11812 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 559 optometrist providers in Iowa.
Other optometrist in Ames
- Sara ButterworthCoralville$191K
- Ethan HuismanWaukee$111K
- Kelsi SawatzkyWest Des Moines$26K
- Heidi BellClive$19K
- Jennifer DenhartogClive$16K
- Wendianne WilsonUrbandale$14K
- Lexie FranzeenWest Des Moines$7K
- Mallori PhillipsGrimes$7K
- Gabrielle MageeWaukee$6K
- Erik KylerOsceola$6K
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.