David Greenfield, MD
Glaucoma Specialist · Miami, FLNPI 1821031980
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $27,450 of the $32,003 with a category attached, or 85.8%. Aerie Pharmaceuticals, Inc. accounts for 83.4% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $27,437 and has fallen 99.8% since, to $42 in 2025. Among glaucoma specialist clinicians in FL 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 34 payments — averaging $941.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Aerie Pharmaceuticals, Inc.$27K
- AbbVie$5K
- Alcon$142
- Johnson & Johnson Surgical Vision, Inc.$39
- Alvogen Inc$24
- Halozyme Inc$24
- plus $49 from 3 others
What the payments were for
- Consulting fees$27,45086%
- Speaking & faculty fees$1,2504%
- Travel & lodging$2,6708%
- Food & beverage$6332%
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 |
|---|---|---|
| Aerie Pharmaceuticals, Inc. | 22 | $26,687 |
| AbbVie(2 entities) | 5 | $5,037 |
| Alcon | 1 | $142 |
| Johnson & Johnson Surgical Vision, Inc. | 1 | $39 |
| Alvogen Inc | 1 | $24 |
| Halozyme Inc | 1 | $24 |
| Relievant Medsystems, Inc. | 1 | $18 |
| Strata Skin Sciences, Inc. | 1 | $18 |
| Amgen | 1 | $14 |
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
$32,003 in reported general payments places this provider in the 90th 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 | 255 | $133,754 |
| RhopressaNetarsudil Mesylate | 182 | $109,836 |
| CombiganBrimonidine Tartrate/Timolol | 163 | $63,483 |
| VyzultaLatanoprostene Bunod | 108 | $54,889 |
| RocklatanNetarsudil Mesylat/Latanoprost | 91 | $54,606 |
| Prednisolone Acetate | 630 | $33,038 |
| Dorzolamide-TimololDorzolamide Hcl/Timolol Maleat | 1,342 | $31,179 |
| Brimonidine Tartrate-TimololBrimonidine Tartrate/Timolol | 162 | $28,489 |
| Latanoprost | 2,359 | $27,850 |
| Alphagan PBrimonidine Tartrate | 59 | $25,892 |
| Travoprost | 129 | $25,784 |
| Brinzolamide | 109 | $23,459 |
| RestasisCyclosporine | 23 | $22,764 |
| Methazolamide | 79 | $22,751 |
| Brimonidine Tartrate | 850 | $18,071 |
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, Combigan, Alphagan P, Restasis | $5,037 | $245,893500 claims |
| Aerie Pharmaceuticals, Inc.Rhopressa, Rocklatan | $26,687 | $164,442273 claims |
| AlconSimbrinza | $142 | $15,51134 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 90th percentile of 31 glaucoma specialist providers in Florida.
Other glaucoma specialist in Miami
- Connie WuMiami$4K
- Natalie DebolskeMiami$3K
- Jenny ChenMiami$1K
- Analisa ArosemenaMiami Beach$438K
- Steven VoldWinter Garden$413K
- Matthew BrinkPalm Beach Gardens$159K
- Mark WernerDelray Beach$24K
- Dan ArreazaHialeah$9K
- Daniel JewelewiczDelray Beach$9K
- Joah AliancyPort Orange$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.