Clint Kellogg, DO
Retina Specialist · Columbia, MONPI 1477998839
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 45 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 11 manufacturers reported payments, led by Genentech USA, Inc. at 34.7% of the total. Reporting peaked in 2023 at $672 and has fallen 82.3% since, to $119 in 2025. That places this record below the midpoint for retina specialist clinicians in MO, where the typical reported total is $2,015.
Across 45 payments — averaging $28.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genentech USA, Inc.$447
- Regeneron Healthcare Solutions, Inc.$338
- AbbVie$238
- Alimera Sciences, Inc.$80
- Apellis Pharmaceuticals, Inc.$42
- Eyepoint US, Inc.$40
- plus $103 from 5 others
What the payments were for
- Food & beverage$1,287100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Genentech USA, Inc. | 14 | $447 |
| Regeneron Healthcare Solutions, Inc. | 6 | $338 |
| AbbVie | 12 | $238 |
| Alimera Sciences, Inc. | 4 | $80 |
| Apellis Pharmaceuticals, Inc. | 2 | $42 |
| Eyepoint US, Inc. | 2 | $40 |
| Carl Zeiss Meditec USA, Inc. | 1 | $25 |
| Dutch Ophthalmic, USA | 1 | $24 |
| Harrow Eye, LLC | 1 | $22 |
| Astellas Pharma US Inc | 1 | $17 |
| Novartis | 1 | $15 |
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.
How this compares
$1,287 in reported general payments places this provider in the 35th percentile of 45 retina specialist providers in Missouri.
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 |
|---|---|---|
| ProlensaBromfenac Sodium | 19 | $6,668 |
| Bromfenac Sodium | 23 | $3,096 |
| Prednisolone Acetate | 77 | $2,996 |
| Difluprednate | 15 | $1,657 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 55 | $1,271 |
| Atropine Sulfate | 36 | $946 |
| Brimonidine Tartrate | 23 | $516 |
| Neomycin-Polymyxin-DexamethNeomycin/Polymyxin B/Dexametha | 29 | $282 |
| Latanoprost | 13 | $90 |
Paid to pharmacies, not to this prescriber.
Other retina specialist in Columbia
- Ahmed ElkeebColumbia$6K
- Vaishnavi BalendiranColumbia$2K
- Dean HainsworthColumbia$99
- Kevin BlinderBrentwood$333K
- Aaron LeeSaint Louis$214K
- Sabin DangBrentwood$174K
- Athanasios PapakostasBrentwood$85K
- Alia DurraniBrentwood$53K
- Barton BlackorbyBrentwood$31K
- Carla TerritoFlorissant$21K
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.