Walter Diaz, MD
Anesthesiology · Plantation, FLNPI 1821062530
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 97.1% of the total across 30 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Merck accounts for 67.1% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2021 at $128 and has fallen 85.5% since, to $19 in 2025.
Across 30 payments — averaging $18.08 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$364
- Masimo Corporation$62
- Covidien LP$29
- Pacira Pharmaceuticals Incorporated$26
- CSL Behring$25
- Medtronic$19
- plus $17 from 1 others
What the payments were for
- Food & beverage$52797%
- Education$163%
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 |
|---|---|---|
| Merck | 22 | $364 |
| Masimo Corporation | 3 | $62 |
| Covidien LP | 1 | $29 |
| Pacira Pharmaceuticals Incorporated | 1 | $26 |
| CSL Behring | 1 | $25 |
| Medtronic | 1 | $19 |
| Mindray DS USA, Inc. | 1 | $17 |
How this compares
$542 in reported general payments places this provider in the 75th percentile of 2,767 anesthesiology 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.
Other anesthesiology in Plantation
- Drew LiebermanPlantation$40K
- Jonathan NievesPlantation$16K
- Melissa GordonPlantation$10K
- Robert LondonOrlando$402K
- Todd HorowitzDelray Beach$267K
- Darren WredeLargo$211K
- Ralf GebhardMiami$166K
- Adam BlombergHollywood$120K
- Andre BoezaartGainesville$119K
- Samantha NiekampMiami$82K
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.