David Kelsen, MD
Medical Oncology · New York, NYNPI 1275504060
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $118,717 of the $119,068 with a category attached, or 99.7%. It is spread thinly across 12 manufacturers, the largest accounting for just 21.3%. Reporting peaked in 2021 at $30,790 and has fallen 72.1% since, to $8,575 in 2025.
Across 30 payments — averaging $3968.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$25K
- Janssen Research & Development, LLC$15K
- GSK$14K
- E.r. Squibb & Sons, L.L.C.$12K
- Daiichi Sankyo Inc.$9K
- Incyte Corporation$9K
- plus $35K from 6 others
What the payments were for
- Consulting fees$118,717100%
- Travel & lodging$2020%
- Food & beverage$1490%
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 |
|---|---|---|
| Merck | 9 | $25,385 |
| Janssen Research & Development, LLC | 2 | $14,875 |
| GSK | 2 | $13,950 |
| E.r. Squibb & Sons, L.L.C. | 3 | $12,464 |
| Daiichi Sankyo Inc. | 6 | $9,304 |
| Incyte Corporation | 1 | $8,540 |
| Blueprint Medicines Corporation | 1 | $8,400 |
| TG Therapeutics, Inc. | 2 | $6,750 |
| Acrotech Biopharma Inc. | 1 | $6,300 |
| Pharmacyclics LLC, An Abbvie Company | 1 | $6,050 |
| AbbVie | 1 | $6,050 |
| Celularity Inc. | 1 | $1,000 |
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
$119,068 in reported general payments places this provider in the 85th percentile of 498 medical 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.
Other medical oncology in New York
- Craig ThompsonNew York$4.8M
- Andrew SeidmanNew York$1.3M
- Joshua RichterNew York$971K
- Edward GelmannNew York$944K
- Ghassan Abou-AlfaNew York$825K
- Miguel PeralesNew York$769K
- Komal JhaveriNew York$642K
- Joshua BrodyNew York$492K
- Aiwu HeNew York$445K
- Raajit RampalNew York$418K
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.