Grainger Lanneau, MD
Gynecologic Oncology · Melbourne, FLNPI 1801983275
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,567 of the $1,929 with a category attached, or 81.2%. 10 manufacturers reported payments, led by Intuitive Surgical at 47.6% of the total. 2025 is the largest year on record at $982, 5.1 times the $194 reported in 2019. That places this record below the midpoint for gynecologic oncology clinicians in FL, where the typical reported total is $2,602.
Across 21 payments — averaging $91.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$918
- GSK$248
- Merck$242
- Verastem, Inc.$138
- AstraZeneca$117
- Eisai Inc.$102
- plus $164 from 4 others
Across 26 payments — averaging $7025.69 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Alkermes, Inc.$183K
What the payments were for
- Travel & lodging$36219%
- Food & beverage$1,56781%
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 |
|---|---|---|
| Intuitive Surgical | 5 | $918 |
| GSK | 2 | $248 |
| Merck | 7 | $242 |
| Verastem, Inc. | 1 | $138 |
| AstraZeneca | 1 | $117 |
| Eisai Inc. | 1 | $102 |
| Caris MPI, Inc. | 1 | $66 |
| Medtronic | 1 | $39 |
| Myriad Genetic Laboratories, Inc. | 1 | $33 |
| AbbVie | 1 | $26 |
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.
- Da Vinci Surgical System$870
- ZEJULA$248
- AVMAPKI FAKZYNJA CO-PACK$138
- KEYTRUDA$123
- LYNPARZA$117
- LENVIMA$102
How this compares
$1,929 in reported general payments places this provider in the 45th percentile of 117 gynecologic oncology 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 |
|---|---|---|
| Gabapentin | 40 | $402 |
| Estradiol | 20 | $311 |
| Ondansetron OdtOndansetron | 21 | $309 |
| Prochlorperazine Maleate | 20 | $211 |
| Letrozole | 13 | $163 |
| Ondansetron Hcl | 13 | $34 |
| Prednisone | 11 | $7 |
Paid to pharmacies, not to this prescriber.
Other gynecologic oncology in Melbourne
- Levent MutluMelbourne$10K
- Bradley MonkWest Palm Beach$2.5M
- Martin MartinoJacksonville$957K
- Brian SlomovitzFort Lauderdale$519K
- Ricardo EstapeMiami$457K
- Robert HollowayOrlando$432K
- Shelly SewardOrlando$349K
- Edward GrendysFort Myers$341K
- Jonathan BlackMiramar$329K
- Nathalie McKenzieOrlando$223K
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.