Michael Cassell, MD
Retina Specialist · Kansas City, MONPI 1932107000
Payments from drug & device makers
Across 105 payments — averaging $3705.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$379K
- Apellis Pharmaceuticals, Inc.$5K
- ANI Pharmaceuticals, Inc.$3K
- Alcon$1K
- Genentech USA, Inc.$366
- Sun Pharmaceutical Industries Inc.$202
- plus $758 from 13 others
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 |
|---|---|---|
| Novartis | 22 | $379,145 |
| Apellis Pharmaceuticals, Inc. | 1 | $4,537 |
| ANI Pharmaceuticals, Inc. | 5 | $3,011 |
| Alcon | 26 | $1,047 |
| Genentech USA, Inc. | 11 | $366 |
| Sun Pharmaceutical Industries Inc. | 15 | $202 |
| Alimera Sciences, Inc. | 7 | $190 |
| Bausch & Lomb Americas Inc. | 4 | $173 |
| Optos, Inc. | 1 | $104 |
| AbbVie | 3 | $69 |
| Carl Zeiss Meditec USA, Inc. | 2 | $40 |
| Regeneron Healthcare Solutions, Inc. | 1 | $33 |
| Glaukos Corporation | 1 | $29 |
| Biogen | 1 | $29 |
| Amgen | 1 | $23 |
| Astellas Pharma US Inc | 1 | $20 |
| Mallinckrodt Hospital Products Inc. | 1 | $17 |
| Rxsight Inc | 1 | $15 |
| Coopervision Inc. | 1 | $15 |
How this compares
$389,067 in reported general payments places this provider in the 90th 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.
Other retina specialist in Kansas City
- Kathleen KwedarKansas City$2K
- Kevin BlinderBrentwood$2.2M
- Alia DurraniBrentwood$1.3M
- Aaron LeeSaint Louis$780K
- Sabin DangBrentwood$486K
- Athanasios PapakostasBrentwood$262K
- Bradley SmithBrentwood$113K
- David GlaserFlorissant$109K
- Ahmed ElkeebColumbia$78K
- Dean HainsworthColumbia$56K
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.