Physician profile
David Y Kahn
NPI 1942421334
$46,855.74
in general payments reported to CMS, 2019-2025
100 companies · $6,982 in 2025
The $6,982 reported for 2025 was more than what 78% of Medical Oncology providers received nationally (typical 2025 total: $1,158).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $8,254 · 2020: $863 · 2021: $1,475 · 2022: $14K · 2023: $7,687 · 2024: $7,986 · 2025: $6,982.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $18K · Consulting Fee: $1,630 · Education: $1,556 · Honoraria: $1,024 · Long Term Medical Supply Or Device Loan: $167.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $18,277.84 |
| Consulting Fee | $1,630.00 |
| Education | $1,556.46 |
| Honoraria | $1,023.75 |
| Long Term Medical Supply Or Device Loan | $166.66 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Bayer Healthcare Pharmaceuticals INC. | $6,611.94 | 2019-2025 | |
| Sobi, INC | $4,992.45 | 2022-2025 | |
| Daiichi Sankyo INC. | $2,156.72 | 2019-2025 | Enhertu, Injectafer, Vanflyta |
| Novartis Pharmaceuticals Corporation | $1,984.04 | 2019-2025 | |
| Karyopharm Therapeutics INC. | $1,934.12 | 2020-2025 | Xpovio |
| Janssen Biotech, INC. | $1,833.59 | 2019-2025 | Rybrevant, Tecvayli, Carvykti |
| Genzyme Corporation | $1,770.31 | 2019-2025 | |
| Astellas Pharma Global Development | $1,743.00 | 2022 | |
| Rigel Pharmaceuticals, INC. | $1,580.44 | 2019-2025 | Rezlidhia, Tavalisse, Gavreto |
| E.R. Squibb & Sons, L.L.C. | $1,563.92 | 2019-2025 | Opdivo, Opdualag, Reblozyl |
| Astrazeneca Pharmaceuticals LP | $1,504.09 | 2019-2025 | Imfinzi, Enhertu, Lynparza |
| Seagen INC. | $1,441.12 | 2020-2025 | Tukysa, Adcetris, Padcev |
| Merck Sharp & Dohme LLC | $1,321.15 | 2019-2025 | Keytruda, Welireg, Lynparza |
| Pfizer INC. | $1,305.96 | 2019-2025 | |
| Celgene Corporation | $1,113.49 | 2019-2025 | Reblozyl, Opdualag, Opdivo |
Show all 100 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Incyte Corporation | $918.91 | 2019-2025 | Jakafi, Monjuvi, Pemazyre |
| Genentech USA, INC. | $781.48 | 2019-2024 | Polivy, Phesgo, Venclexta |
| Abbvie INC. | $742.01 | 2019-2025 | |
| Lilly USA, LLC | $730.99 | 2019-2025 | Verzenio, Jaypirca, Retevmo |
| Amgen INC. | $611.28 | 2019-2023 | Vectibix, Xgeva, Nplate |
| Astellas Pharma US INC | $594.48 | 2022-2025 | Padcev, Xospata, Vyloy |
| Glaxosmithkline, LLC. | $510.59 | 2022-2025 | Ojjaara, Zejula, Jemperli |
| Emd Serono, INC. | $463.87 | 2019-2025 | Bavencio, Tepmetko |
| Sanofi-Aventis U.S. LLC | $458.88 | 2022-2024 | |
| Takeda Pharmaceuticals U.S.A., INC. | $430.61 | 2019-2025 | Iclusig, Alunbrig, Hyqvia |
| Pharmacyclics LLC, An Abbvie Company | $429.14 | 2019-2023 | Imbruvica, Epkinly |
| Eisai INC. | $388.48 | 2019-2025 | |
| Exelixis INC. | $328.73 | 2019-2025 | Cabometyx |
| Aveo Pharmaceuticals, INC. | $322.34 | 2021-2025 | Fotivda |
| Jazz Pharmaceuticals INC. | $282.29 | 2021-2025 | Zepzelca |
| Genmab U.S., INC. | $252.54 | 2023-2025 | Tivdak, Epkinly |
| Alexion Pharmaceuticals, INC. | $245.03 | 2022-2025 | Ultomiris |
| Servier Pharmaceuticals LLC | $240.44 | 2022-2025 | |
| Regeneron Healthcare Solutions, INC. | $232.73 | 2022-2025 | Libtayo |
| Array Biopharma INC | $219.26 | 2022-2025 | Mektovi, Braftovi, Lorbrena |
| Gilead Sciences, INC. | $215.96 | 2019-2025 | Trodelvy |
| Pharmacosmos Therapeutics INC. | $209.54 | 2022-2025 | Monoferric, Cosela |
| Ipsen Biopharmaceuticals, INC | $178.04 | 2022-2025 | Onivyde, Somatuline Depot, Tazverik |
| Pharmaessentia USA Corporation | $149.99 | 2022-2025 | Besremi |
| Blueprint Medicines Corporation | $143.38 | 2022-2025 | Ayvakit |
| Fennec Pharmaceuticals, INC. | $140.81 | 2025 | Fyarro |
| Tempus Ai, INC | $139.22 | 2024-2025 | Xt Cdx, Tempus Pixel |
| Springworks Therapeutics, INC. | $138.07 | 2024-2025 | Ogsiveo, Gomekli |
| Tersera Therapeutics LLC | $123.25 | 2022-2025 | Zoladex, Xermelo |
| Stemline Therapeutics INC. | $117.41 | 2023-2025 | Orserdu, Elzonris |
| Adc Therapeutics America, INC. | $116.92 | 2022-2025 | |
| G1 Therapeutics, INC. | $116.10 | 2022-2023 | Cosela |
| Boehringer Ingelheim Pharmaceuticals, INC. | $113.66 | 2019-2024 | Gilotrif |
| Janssen Pharmaceuticals, INC | $106.83 | 2019-2024 | Xarelto |
| Sun Pharmaceutical Industries INC. | $103.18 | 2019-2025 | |
| Octapharma USA, INC. | $102.66 | 2023-2024 | Octagam Immune Globulin (Human), Panzyga |
| Adaptive Biotechnologies Corporation | $97.69 | 2022-2025 | Clonoseq |
| Kyowa Kirin, INC. | $91.67 | 2022-2024 | Poteligeo |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $91.17 | 2020 | |
| Mirati Therapeutics, INC. | $90.99 | 2023-2024 | Krazati |
| Kite Pharma, INC. | $88.98 | 2022-2025 | Yescarta |
| Amag Pharmaceuticals, INC. | $82.65 | 2019-2022 | |
| Alnylam Pharmaceuticals INC. | $82.30 | 2022-2025 | Givlaari |
| Beigene USA, INC. | $81.75 | 2023-2024 | Brukinsa, Tevimbra |
| Puma Biotechnology, INC. | $79.83 | 2019-2024 | |
| Foundation Medicine, INC. | $74.60 | 2019-2023 | |
| Recordati_rare_diseases_inc. | $72.96 | 2025 | Enjaymo |
| Spectrum Pharmaceuticals INC. | $71.33 | 2023-2025 | Rolvedon |
| Myriad Genetic Laboratories, INC. | $69.83 | 2024-2025 | Myrisk |
| Ge Healthcare | $69.67 | 2025 | |
| Coherus Oncology, INC. | $66.84 | 2022-2024 | |
| Mylan Institutional INC. | $66.42 | 2019-2022 | |
| Amneal Pharmaceuticals LLC | $64.84 | 2023-2025 | Pemrydi Rtu, Alymsys, Neulasta |
| Tg Therapeutics, INC. | $64.60 | 2021 | |
| Azurity Pharmaceuticals, INC. | $60.94 | 2024-2025 | Danziten, Vivimusta |
| Shield Therapeutics INC | $59.30 | 2023-2025 | Accrufer |
| Legend Biotech USA INC. | $56.14 | 2025 | Carvykti |
| Morphosys, US INC. | $55.99 | 2023-2024 | Monjuvi |
| Progenics Pharmaceuticals, INC. | $54.55 | 2023-2024 | Pylarify |
| Taiho Oncology, INC. | $54.19 | 2023-2024 | |
| Tesaro, INC. | $53.04 | 2019 | |
| Abbott Laboratories | $52.78 | 2024 | Proclaim |
| Digestive Care, INC. | $48.45 | 2024 | Pertzye |
| Organon LLC | $44.73 | 2022-2024 | |
| Beone Medicines USA, INC. | $44.36 | 2025 | Brukinsa |
| Acrotech Biopharma INC. | $42.25 | 2025 | Beleodaq |
| Teva Pharmaceuticals USA, INC. | $41.96 | 2023-2024 | Truxima |
| Menarini Silicon Biosystems, INC. | $40.47 | 2024 | |
| Eusa Pharma (US) LLC | $36.11 | 2022 | |
| Iovance Biotherapeutics, INC. | $35.58 | 2025 | Amtagvi |
| Sandoz INC. | $33.61 | 2019-2025 | |
| Sumitomo Pharma America, INC. | $33.36 | 2024 | Orgovyx |
| Boston Scientific Corporation | $32.21 | 2022 | |
| Epizyme, INC. | $32.16 | 2021-2022 | |
| Agios Pharmaceuticals, INC. | $28.05 | 2025 | Pyrukynd |
| Geron Corporation | $27.34 | 2025 | Rytelo |
| Heron Therapeutics, INC. | $23.56 | 2022 | |
| Sirtex Medical INC | $20.69 | 2023 | Sir-Spheres Microspheres |
| Deciphera Pharmaceuticals INC. | $19.51 | 2023 | Qinlock |
| Catalyst Pharmaceuticals, INC. | $18.54 | 2024 | |
| Acceleron Pharma, INC. | $17.84 | 2021 | |
| Clovis Oncology, INC. | $15.68 | 2022 | |
| Secura Bio, INC. | $15.10 | 2019 | |
| Verastem, INC. | $14.35 | 2019 | |
| Lexicon Pharmaceuticals, INC. | $14.21 | 2019 |
Drugs and devices associated with these payments
Xpovio $1,889Tavalisse $1,293Rezlidhia $1,293Opdivo $885Keytruda $865Imbruvica $677Reblozyl $591Doptelet $490Imfinzi $458Enhertu $455Rybrevant $434Venclexta $423Epkinly $414Tukysa $404Carvykti $374Verzenio $357Tecvayli $352Lenvima $343Kisqali $338Sarclisa $295Injectafer $272Jaypirca $265Fotivda $247Ibrance $240Xtandi $236Darzalex $236Zepzelca $234Welireg $226Orgovyx $225Jakafi $225Ultomiris $222Lynparza $211Cabometyx $209Scemblix $207Padcev $207Retevmo $206Enjaymo $204Monjuvi $198Pertzye $194Talzenna $192Ojjaara $183Tibsovo $183Altuviiio $182Zejula $180Braftovi $175Mektovi $175Tivdak $171Talvey $170Adcetris $154Jevtana $144Monoferric $142Fyarro $141Vitrakvi $140Stivarga $140Piqray $140Gavreto $138Polivy $138Ayvakit $131Erleada $130Comirnaty $126Pluvicto $125Lorbrena $125Libtayo $124Elitek $123Onivyde $122Phesgo $121Lutathera $121Xt Cdx $120Fabhalta $117Vonjo $115Wayrilz $115Opdualag $113Paxlovid $112Besremi $111Cablivi $110Jemperli $102Alecensa $102Orserdu $100Brukinsa $98.05Xarelto $96.65Vanflyta $93.46Ogsiveo $93.20Tecentriq $91.41Krazati $90.99Iclusig $90.23Xospata $84.91Lunsumio $84.03Trodelvy $83.43Alprolix $83.36Bosulif $83.14Clonoseq $78.06Cosela $75.72Datroway $75.38Octagam Immune Globulin (Human) $74.76Tasigna $74.01Yescarta $73.67Rolvedon $71.33Myrisk $69.83Pemazyre $69.18Keytruda Qlex $68.47
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw David Kahn listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.