Robert Weaver, MD
Medical Oncology · Tampa, FLNPI 1578543799
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (48.5%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. 60 manufacturers reported payments, led by Eisai Inc. at 28.5% of the total. Reporting peaked in 2019 at $16,668 and has fallen 65.9% since, to $5,678 in 2025.
Across 972 payments — averaging $63.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eisai Inc.$18K
- Genentech USA, Inc.$9K
- Immunomedics, Inc.$7K
- AstraZeneca$6K
- E.r. Squibb & Sons, L.L.C.$2K
- Immunogen, Inc.$2K
- plus $18K from 54 others
Across 234 payments — averaging $3703.92 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.
- E.r. Squibb & Sons, L.L.C.$215K
- AstraZeneca$183K
- AVEO Pharmaceuticals, Inc.$113K
- Jazz Pharmaceuticals Inc.$99K
- Astrazeneca UK Limited$82K
- Genentech, Inc.$38K
- plus $136K from 7 others
What the payments were for
- Consulting fees$6,05010%
- Speaking & faculty fees$30,12549%
- Travel & lodging$1,6713%
- Food & beverage$24,10439%
- Education$1040%
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.
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
$62,054 in reported general payments places this provider in the 85th percentile of 507 medical 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 |
|---|---|---|
| PomalystPomalidomide | 22 | $472,967 |
| RevlimidLenalidomide | 27 | $470,686 |
| JakafiRuxolitinib Phosphate | 18 | $379,565 |
| EliquisApixaban | 78 | $55,873 |
| XareltoRivaroxaban | 18 | $12,807 |
| Ondansetron Hcl | 58 | $5,375 |
| Exemestane | 40 | $4,181 |
| Letrozole | 202 | $3,408 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 29 | $837 |
| Prochlorperazine Maleate | 27 | $617 |
| Megestrol Acetate | 15 | $465 |
| Hydroxyurea | 22 | $392 |
| Dexamethasone | 24 | $375 |
| Tamoxifen Citrate | 25 | $366 |
| Anastrozole | 25 | $337 |
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C.Pomalyst | $1,786 | $472,96722 claims |
| Bristol Myers SquibbRevlimid | $1,363 | $470,68627 claims |
| Incyte CorporationJakafi | $619 | $379,56518 claims |
| PfizerEliquis | $1,108 | $55,87378 claims |
| Johnson & JohnsonXarelto | $921 | $12,80718 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 85th percentile of 507 medical oncology providers in Florida.
Other medical oncology in Tampa
- Eduardo SotomayorTampa$362K
- Kenneth ShainTampa$341K
- Ivan BorrelloTampa$336K
- Alberto ChiapporiTampa$325K
- Jingsong ZhangTampa$220K
- Sameh GaballaTampa$214K
- Adil DaudTampa$204K
- Jeffrey WeberTampa$193K
- Mayer FishmanTampa$193K
- Jonathan StrosbergTampa$148K
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.