Steven Gruenstein, MD
Hematology & Oncology · New York, NYNPI 1407855307
Payments from drug & device makers
Across 118 payments — averaging $21.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$567
- Gilead$458
- Johnson & Johnson$184
- Rigel Pharmaceuticals, Inc.$136
- E.r. Squibb & Sons, L.L.C.$119
- Novartis$106
- plus $995 from 29 others
What the payments were for
- Food & beverage$2,33591%
- Education$2289%
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 |
|---|---|---|
| AstraZeneca(2 entities) | 24 | $567 |
| Gilead(2 entities) | 23 | $458 |
| Johnson & Johnson(2 entities) | 5 | $184 |
| Rigel Pharmaceuticals, Inc. | 2 | $136 |
| E.r. Squibb & Sons, L.L.C. | 11 | $119 |
| Novartis | 6 | $106 |
| Merck | 5 | $92 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $81 |
| Incyte Corporation | 3 | $61 |
| Lilly USA, LLC | 3 | $58 |
| Astellas Pharma US Inc | 3 | $56 |
| Pfizer | 3 | $54 |
| Sanofi | 2 | $46 |
| Tersera Therapeutics LLC | 2 | $45 |
| Amgen | 2 | $44 |
| Genentech USA, Inc. | 2 | $42 |
| EMD Serono, Inc. | 1 | $40 |
| Seagen Inc. | 2 | $39 |
| ADC Therapeutics America, Inc. | 1 | $29 |
| Lexicon Pharmaceuticals, Inc. | 1 | $23 |
| Puma Biotechnology, Inc. | 1 | $23 |
| Teva Pharmaceuticals USA, Inc. | 1 | $22 |
| Shield Therapeutics Inc | 1 | $22 |
| Sun Pharmaceutical Industries Inc. | 1 | $21 |
| Myovant Sciences Inc. | 1 | $20 |
| Sanofi Pasteur Inc. | 1 | $20 |
| Array Biopharma Inc | 1 | $19 |
| AbbVie | 1 | $19 |
| GSK | 1 | $18 |
| Kyowa Kirin, Inc. | 1 | $18 |
| Bayer | 1 | $18 |
| Stemline Therapeutics Inc. | 1 | $17 |
| Agios Pharmaceuticals, Inc. | 1 | $17 |
| Advanced Accelerator Applications | 1 | $17 |
| Partner Therapeutics, Inc. | 1 | $12 |
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.
How this compares
$2,563 in reported general payments places this provider in the 45th percentile of 967 hematology & oncology providers in New York.
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 |
|---|---|---|
| AranespDarbepoetin Alfa In Polysorbat | 216 | $683,805 |
| ImbruvicaIbrutinib | 26 | $403,148 |
| BrukinsaZanubrutinib | 24 | $354,040 |
| XtandiEnzalutamide | 21 | $293,406 |
| JevtanaCabazitaxel | 16 | $216,138 |
| CalquenceAcalabrutinib Maleate | 13 | $200,794 |
| Neulasta OnproPegfilgrastim | 29 | $178,517 |
| Lenalidomide | 16 | $159,586 |
| XgevaDenosumab | 51 | $157,871 |
| OctagamImmun Globg(Igg)/Malt/Iga Ov50 | 13 | $138,219 |
| Darzalex FasproDaratumumab-Hyaluronidase-Fihj | 14 | $128,541 |
| Lupron DepotLeuprolide Acetate | 48 | $111,728 |
| NeulastaPegfilgrastim | 16 | $110,487 |
| ProcritEpoetin Alfa | 42 | $83,263 |
| AkynzeoFosnetupitant/Palonosetron | 64 | $61,100 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AmgenAranesp, Xgeva, Neulasta | $44 | $952,164283 claims |
| Astellas Pharma US IncXtandi | $56 | $293,40621 claims |
| SanofiJevtana | $46 | $216,13816 claims |
| AstraZenecaCalquence | $567 | $200,79413 claims |
| PfizerOctagam, Eliquis | $54 | $179,83048 claims |
| AbbVieLupron Depot | $19 | $111,72848 claims |
| Johnson & JohnsonProcrit, Xarelto | $184 | $110,97264 claims |
| Teva Pharmaceuticals USA, Inc.Acyclovir | $22 | $12111 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 45th percentile of 967 hematology & oncology providers in New York.
Other hematology & oncology in New York
- Vicky MakkerNew York$27.1M
- Alison MoskowitzNew York$22.7M
- Ajai ChariNew York$22.4M
- Yelena JanjigianNew York$16.9M
- Alexander LesokhinNew York$11.9M
- John MascarenhasNew York$11.8M
- Maria PalombaNew York$11.6M
- Scott TagawaNew York$10.3M
- Mohammad Abdul HayNew York$9.9M
- Joshua SabariNew York$9.7M
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.