Aziz Khan, MD
Hematology & Oncology · Springfield, ILNPI 1699702316
Payments from drug & device makers
Across 14 payments — averaging $4906.12 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$68K
- Merck$382
- Johnson & Johnson$99
- Incyte Corporation$98
- Lilly USA, LLC$90
- Rigel Pharmaceuticals, Inc.$58
- plus $35 from 2 others
What the payments were for
- Food & beverage$17947%
- Education$20153%
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 3 | $67,924 |
| Merck | 5 | $382 |
| Johnson & Johnson | 1 | $99 |
| Incyte Corporation | 1 | $98 |
| Lilly USA, LLC | 1 | $90 |
| Rigel Pharmaceuticals, Inc. | 1 | $58 |
| Sanofi | 1 | $23 |
| Gilead | 1 | $12 |
How this compares
$68,686 in reported general payments places this provider in the 65th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| XtandiEnzalutamide | 27 | $581,490 |
| ImbruvicaIbrutinib | 25 | $407,684 |
| DopteletAvatrombopag Maleate | 15 | $352,663 |
| LenvimaLenvatinib Mesylate | 12 | $296,878 |
| BrukinsaZanubrutinib | 12 | $210,800 |
| Deferiprone (3 Times A Day)Deferiprone | 13 | $198,388 |
| IbrancePalbociclib | 13 | $196,740 |
| VenclextaVenetoclax | 15 | $176,706 |
| LonsurfTrifluridine/Tipiracil Hcl | 18 | $172,934 |
| Imatinib Mesylate | 36 | $147,563 |
| Everolimus | 12 | $115,104 |
| Abiraterone Acetate | 20 | $47,135 |
| EliquisApixaban | 31 | $28,631 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 43 | $1,071 |
| Morphine Sulfate ErMorphine Sulfate | 24 | $873 |
Paid to pharmacies, not to this prescriber.
Other hematology & oncology in Springfield
- Preet SinghSpringfield$3.5M
- Richard SchilskyBurr Ridge$87.1M
- Edwin PosadasBurr Ridge$70.9M
- 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
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.