Chad Hamilton, MD
Gynecologic Oncology · Annandale, VANPI 1699733808
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $149,708 of the $242,115 with a category attached, or 61.8%. GSK accounts for 60.4% of it on its own, with 28 other manufacturers making up the rest. Among gynecologic oncology clinicians in VA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 249 payments — averaging $972.35 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$146K
- Tesaro, Inc.$37K
- AbbVie$29K
- AstraZeneca$17K
- Merck$7K
- Pfizer$2K
- plus $4K from 23 others
Across 2 payments — averaging $621.38 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.
- Merck$1K
What the payments were for
- Consulting fees$75,31831%
- Speaking & faculty fees$149,70862%
- Travel & lodging$10,2684%
- Food & beverage$6,4693%
- Education$3530%
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 |
|---|---|---|
| GSK | 91 | $146,357 |
| Tesaro, Inc. | 46 | $36,675 |
| AbbVie | 22 | $29,130 |
| AstraZeneca | 8 | $16,807 |
| Merck | 27 | $6,562 |
| Pfizer | 2 | $2,160 |
| Genmab U.S., Inc. | 4 | $2,032 |
| Eisai Inc. | 6 | $536 |
| Intuitive Surgical | 3 | $300 |
| Biom'up SA | 3 | $294 |
| Caris MPI, Inc. | 3 | $236 |
| Genentech USA, Inc. | 5 | $194 |
| Biom'up France SAS | 1 | $147 |
| Clovis Oncology, Inc. | 5 | $92 |
| Foundation Medicine, Inc. | 4 | $86 |
| Daiichi Sankyo Inc. | 3 | $80 |
| Smith+Nephew | 1 | $78 |
| Kyowa Kirin, Inc. | 3 | $54 |
| Myriad Genetic Laboratories, Inc. | 2 | $48 |
| Immunogen, Inc. | 1 | $42 |
| Tempus AI, Inc | 1 | $30 |
| Bayer | 1 | $29 |
| Pacira Pharmaceuticals Incorporated | 1 | $28 |
| Amgen | 1 | $27 |
| Heron Therapeutics, Inc. | 1 | $27 |
| Davol Inc. | 1 | $21 |
| BD | 1 | $15 |
| Stryker | 1 | $15 |
| Hologic Sales And Service, LLC | 1 | $15 |
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.
- ZEJULA$101,685
- JEMPERLI$73,474
- Elahere$28,696
- LYNPARZA$10,825
- Enhertu$3,425
- TIVDAK$2,160
- EPKINLY$1,965
- HEMOBLAST$269
- HemoBlast Bellows$147
- Da Vinci Surgical System$134
- MI CANCER SEEK$127
- LENVIMA$125
- KEYTRUDA$116
- Orilissa$115
How this compares
$242,115 in reported general payments places this provider in the 95th percentile of 47 gynecologic oncology providers in Virginia.
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 |
|---|---|---|
| Dexamethasone | 11 | $66 |
Paid to pharmacies, not to this prescriber.
Other gynecologic oncology in Annandale
- Annette BicherAnnandale$7K
- Gaylord RoseAnnandale$3K
- Cecelia BoardmanRichmond$577K
- Leslie RandallFairfax$342K
- Samantha BatmanCharlottesville$76K
- Linda DuskaCharlottesville$72K
- Marilyn HuangCharlottesville$39K
- Kari RingCharlottesville$14K
- Randal WestRichmond$8K
- John ElkasFairfax$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.