Wendy Stock
Hematology & Oncology · Chicago, ILNPI 1588727093
Payments from drug & device makers
Across 295 payments — averaging $24,381 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$3.4M
- AbbVie$1.8M
- Servier Bioinnovation$492K
- Takeda Pharmaceuticals U.S.A., Inc.$453K
- Otsuka Pharmaceutical Co., Ltd.$364K
- Amgen$321K
- plus $385K from 15 others
Across 12 payments — averaging $1463.83 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.
- Pfizer$17K
- Bristol Myers Squibb$476
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 |
|---|---|---|
| Pfizer(2 entities) | 43 | $3,372,503 |
| AbbVie | 53 | $1,803,839 |
| Servier Bioinnovation | 40 | $492,454 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $452,800 |
| Otsuka Pharmaceutical Co., Ltd. | 38 | $364,410 |
| Amgen | 21 | $321,039 |
| Incyte Corporation | 5 | $171,095 |
| Boehringer Ingelheim International GmbH | 8 | $58,144 |
| Syndax Pharmaceuticals, Inc. | 21 | $51,379 |
| Astellas Pharma Global Development | 5 | $29,124 |
| Gilead(2 entities) | 17 | $24,723 |
| Servier Pharmaceuticals LLC | 13 | $13,356 |
| GSK | 5 | $10,400 |
| Jazz Pharmaceuticals Inc. | 5 | $9,023 |
| Agios Pharmaceuticals, Inc. | 8 | $5,681 |
| Bristol Myers Squibb | 1 | $5,445 |
| Servier Affaires Medicales | 1 | $2,720 |
| Adaptive Biotechnologies Corporation | 3 | $2,546 |
| AstraZeneca | 2 | $1,160 |
| Daiichi Sankyo Inc. | 4 | $337 |
| Novartis | 1 | $135 |
How this compares
$7,192,314 in reported general payments places this provider in the 95th percentile of 580 hematology & 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 hematology & oncology in Chicago
- Oana DanciuChicago$23.2M
- Shuo MaChicago$20.5M
- Olwen HahnChicago$11.9M
- Christine BestvinaChicago$11.3M
- Russell SzmulewitzChicago$9.8M
- Randy SweisChicago$9.4M
- Hedy KindlerChicago$8.6M
- Reem KarmaliChicago$7.7M
- Justin KlineChicago$6.6M
- Jane WinterChicago$6.4M
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.