Gary Altwerger, MD
Gynecologic Oncology · Chicago, ILNPI 1407114630
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (52.8%), food and beverage and gifts — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Intuitive Surgical at 54.8% of the total.
Across 41 payments — averaging $119.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- Medical Device Business Services, Inc.$1K
- Foundation Medicine, Inc.$345
- AbbVie$136
- Immunogen, Inc.$128
- Genmab U.S., Inc.$125
- plus $420 from 7 others
What the payments were for
- Travel & lodging$2,59553%
- Food & beverage$2,27546%
- Education$180%
- Gifts$230%
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 | 20 | $2,692 |
| Medical Device Business Services, Inc. | 7 | $1,066 |
| Foundation Medicine, Inc. | 3 | $345 |
| AbbVie | 1 | $136 |
| Immunogen, Inc. | 1 | $128 |
| Genmab U.S., Inc. | 1 | $125 |
| Genentech USA, Inc. | 1 | $102 |
| Eisai Inc. | 1 | $99 |
| Lilly USA, LLC | 1 | $89 |
| Johnson & Johnson | 2 | $66 |
| GSK | 1 | $25 |
| Tesaro, Inc. | 1 | $21 |
| Clovis Oncology, Inc. | 1 | $18 |
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$2,276
- Harmonic$994
- Elahere$263
- FOUNDATIONONE$170
- FOUNDATIONONE HEME$170
- FOUNDATIONONE CDX$170
- FOUNDATIONFOCUS$170
- FOUNDATIONONE LIQUID$170
- TIVDAK$125
- FOUNDATIONONE LIQUID CDX$108
- Avastin$102
How this compares
$4,911 in reported general payments places this provider in the 70th percentile of 64 gynecologic oncology providers in Illinois.
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 gynecologic oncology in Chicago
- Amina AhmedChicago$1.1M
- Dario RoqueChicago$587K
- Jenna MarcusChicago$230K
- Emily HinchcliffChicago$62K
- Summer DewdneyChicago$59K
- Kathryn MillsChicago$32K
- Wilberto Nieves-NeiraChicago$23K
- Amy AlexanderChicago$22K
- Freidoon AziziChicago$14K
- John MoroneyChicago$8K
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.