William Plum, MD
Glaucoma Specialist · Mount Dora, FLNPI 1356731343
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (56.8%), speaking fees and education — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Topcon Healthcare, Inc. at 38.9% of the total. 2025 is the largest year on record at $2,256, more than ten times the $60 reported in 2021. That places this record below the midpoint for glaucoma specialist clinicians in FL, where the typical reported total is $4,128.
Across 66 payments — averaging $48.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Topcon Healthcare, Inc.$1K
- Alcon$671
- AbbVie$449
- Nova Eye, Inc.$212
- Glaukos Corporation$191
- NEW World Medical,inc.$130
- plus $307 from 7 others
What the payments were for
- Speaking & faculty fees$1,25039%
- Food & beverage$1,82557%
- Education$1364%
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 |
|---|---|---|
| Topcon Healthcare, Inc. | 1 | $1,250 |
| Alcon | 21 | $671 |
| AbbVie | 21 | $449 |
| Nova Eye, Inc. | 1 | $212 |
| Glaukos Corporation | 3 | $191 |
| NEW World Medical,inc. | 8 | $130 |
| Mallinckrodt Hospital Products Inc. | 1 | $100 |
| Bausch & Lomb Americas Inc. | 3 | $57 |
| Oyster Point Pharma, Inc. | 2 | $43 |
| Ocular Therapeutix, Inc. | 2 | $37 |
| Harrow Eye, LLC | 1 | $25 |
| Apellis Pharmaceuticals, Inc. | 1 | $23 |
| Sight Sciences, Inc. | 1 | $22 |
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.
- Clareon$149
- IACCESS$138
- iStent inject W$138
- Clareon PanOptix Pro$132
How this compares
$3,211 in reported general payments places this provider in the 40th percentile of 31 glaucoma specialist providers in Florida.
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 |
|---|---|---|
| LumiganBimatoprost | 112 | $67,295 |
| RocklatanNetarsudil Mesylat/Latanoprost | 69 | $27,988 |
| RhopressaNetarsudil Mesylate | 67 | $25,834 |
| ProlensaBromfenac Sodium | 61 | $21,170 |
| SimbrinzaBrinzolamide/Brimonidine Tart | 75 | $20,537 |
| RestasisCyclosporine | 12 | $16,840 |
| Prednisolone Acetate | 393 | $14,690 |
| Alphagan PBrimonidine Tartrate | 27 | $12,863 |
| Latanoprost | 1,013 | $12,597 |
| Brimonidine Tartrate | 440 | $8,219 |
| Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol | 43 | $8,027 |
| VyzultaLatanoprostene Bunod | 17 | $7,638 |
| Methazolamide | 22 | $7,582 |
| MoxifloxacinMoxifloxacin Hcl | 257 | $7,219 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 442 | $7,051 |
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 |
|---|---|---|
| AbbVieLumigan, Restasis, Alphagan P, Combigan | $449 | $102,330169 claims |
| AlconSimbrinza | $671 | $20,53775 claims |
| Bausch & Lomb Americas Inc.Vyzulta | $57 | $7,63817 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 40th percentile of 31 glaucoma specialist providers in Florida.
Other glaucoma specialist in Mount Dora
- Analisa ArosemenaMiami Beach$438K
- Steven VoldWinter Garden$413K
- Matthew BrinkPalm Beach Gardens$159K
- David GreenfieldMiami$32K
- Mark WernerDelray Beach$24K
- Dan ArreazaHialeah$9K
- Daniel JewelewiczDelray Beach$9K
- Joah AliancyPort Orange$7K
- Phil AlabataCrestview$7K
- Clinton SheetsHudson$7K
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.