Madhavi Manyam, DO
Gynecologic Oncology · Saint Louis, MONPI 1255751970
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $3,023 of the $3,942 with a category attached, or 76.7%. 20 manufacturers reported payments, led by Intuitive Surgical at 50.6% of the total. Reporting peaked in 2024 at $1,679 and has fallen 71.5% since, to $479 in 2025.
Across 73 payments — averaging $53.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$2K
- Merck$215
- AbbVie$213
- AstraZeneca$202
- Genmab U.S., Inc.$190
- GSK$155
- plus $970 from 14 others
What the payments were for
- Travel & lodging$91023%
- Food & beverage$3,02377%
- Gifts$90%
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 | 18 | $1,996 |
| Merck | 9 | $215 |
| AbbVie | 5 | $213 |
| AstraZeneca | 4 | $202 |
| Genmab U.S., Inc. | 5 | $190 |
| GSK | 8 | $155 |
| Eisai Inc. | 5 | $129 |
| Bayer | 1 | $125 |
| Johnson & Johnson | 1 | $116 |
| Clovis Oncology, Inc. | 1 | $114 |
| Tetraphase Pharmaceuticals, Inc. | 1 | $105 |
| Astellas Pharma US Inc | 4 | $86 |
| Integra Lifesciences Corporation | 1 | $58 |
| Tempus AI, Inc | 3 | $57 |
| Conmed Corporation | 1 | $56 |
| Baxter Healthcare | 1 | $39 |
| Hologic Sales And Service, LLC | 2 | $33 |
| LSI Solutions Inc | 1 | $19 |
| Myriad Genetic Laboratories, Inc. | 1 | $18 |
| Smith+Nephew | 1 | $16 |
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$1,504
- Vitrakvi$125
- Echelon Powered Circular$116
- Rubraca$114
- Xerava$105
How this compares
$3,942 in reported general payments places this provider in the 60th percentile of 38 gynecologic oncology providers in Missouri.
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 |
|---|---|---|
| Oxycodone Hcl | 24 | $122 |
| Ondansetron Hcl | 12 | $33 |
Paid to pharmacies, not to this prescriber.
Other gynecologic oncology in Saint Louis
- Premal ThakerSaint Louis$287K
- Matthew PowellSaint Louis$162K
- David MutchSaint Louis$26K
- Dan-Arin SilasiSaint Louis$23K
- Dineo KhabeleSaint Louis$22K
- Carolyn McCourtSaint Louis$14K
- Andrea HagemannSaint Louis$11K
- Shannon GraboschSaint Louis$9K
- Randall GibbSaint Louis$8K
- Leslie MassadSaint Louis$6K
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.