Physician profile
Christopher H Chay
NPI 1699764878
$9,907.25
in general payments reported to CMS, 2019-2025
66 companies · $2,511 in 2025
The $2,511 reported for 2025 was more than what a typical Hematology & Oncology provider received nationally (typical 2025 total: $686).
Payments by year
General and research payments by program year, as reported to CMS.
General payments by year: 2020: $50.11 · 2021: $612 · 2022: $933 · 2023: $3,647 · 2024: $2,153 · 2025: $2,511.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $3,969 · Consulting Fee: $3,298 · Honoraria: $1,024 · Education: $21.00.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $3,969.12 |
| Consulting Fee | $3,297.50 |
| Honoraria | $1,023.75 |
| Education | $21.00 |
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. Research payments are listed separately below. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Seagen INC. | $1,652.30 | 2023 | Padcev, Tukysa |
| Caris Mpi, INC. | $1,135.54 | 2025 | Mi Cancer Seek |
| Rigel Pharmaceuticals, INC. | $1,023.75 | 2023 | Rezlidhia, Tavalisse |
| Daiichi Sankyo INC. | $911.05 | 2021-2025 | Enhertu, Injectafer |
| Novartis Pharmaceuticals Corporation | $716.84 | 2021-2025 | Kisqali, Piqray |
| Janssen Biotech, INC. | $589.06 | 2021-2025 | Darzalex, Tecvayli, Talvey |
| Merck Sharp & Dohme LLC | $301.91 | 2021-2025 | Keytruda, Welireg, Keytruda Qlex |
| Astrazeneca Pharmaceuticals LP | $280.70 | 2021-2025 | Lynparza, Enhertu, Imfinzi |
| E.R. Squibb & Sons, L.L.C. | $261.06 | 2021-2025 | Opdivo, Opdualag, Augtyro |
| Takeda Pharmaceuticals U.S.A., INC. | $209.23 | 2022-2025 | Ninlaro, Fruzaqla, Iclusig |
| Eisai INC. | $165.75 | 2021-2024 | |
| Abbvie INC. | $152.14 | 2022-2025 | |
| Acera Surgical, INC. | $148.15 | 2023 | Restrata Wound Matrix |
| Genentech USA, INC. | $125.41 | 2021-2025 | Venclexta, Tecentriq Hybreza, Itovebi |
| Beigene USA, INC. | $125.16 | 2020-2024 | Brukinsa |
Show all 60 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Astellas Pharma US INC | $118.94 | 2021-2025 | Xtandi, Padcev, Xospata |
| Bayer Healthcare Pharmaceuticals INC. | $118.17 | 2023-2025 | |
| Pfizer INC. | $117.47 | 2021-2025 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $114.35 | 2021-2025 | Gilotrif |
| Celgene Corporation | $113.80 | 2021-2025 | Reblozyl, Pomalyst |
| Deciphera Pharmaceuticals INC. | $104.50 | 2022-2024 | Qinlock |
| Amgen INC. | $94.69 | 2020-2023 | Xgeva, Vectibix, Nplate |
| Genzyme Corporation | $92.25 | 2020-2024 | |
| Incyte Corporation | $87.22 | 2023-2025 | Jakafi |
| Glaxosmithkline, LLC. | $86.39 | 2021-2025 | Zejula, Jemperli, Ojjaara |
| Beone Medicines USA, INC. | $77.59 | 2025 | Brukinsa, Tevimbra |
| Alexion Pharmaceuticals, INC. | $64.26 | 2024 | Ultomiris |
| Servier Pharmaceuticals LLC | $64.13 | 2024-2025 | |
| Exelixis INC. | $54.44 | 2021-2024 | Cabometyx |
| Stemline Therapeutics INC. | $54.36 | 2023 | Orserdu |
| Gilead Sciences, INC. | $51.55 | 2021-2025 | Trodelvy |
| Puma Biotechnology, INC. | $42.24 | 2021-2024 | |
| Taiho Oncology, INC. | $41.46 | 2024-2025 | |
| Jazz Pharmaceuticals INC. | $40.74 | 2023-2024 | Zepzelca |
| Tactile Systems Technology INC | $37.99 | 2022 | |
| Lilly USA, LLC | $36.09 | 2021-2024 | Jaypirca, Verzenio, Retevmo |
| Sobi, INC | $35.78 | 2023-2024 | |
| Acrotech Biopharma INC. | $35.73 | 2021-2022 | |
| Aveo Pharmaceuticals, INC. | $34.53 | 2022-2023 | Fotivda |
| Organon LLC | $30.89 | 2024 | |
| G1 Therapeutics, INC. | $23.45 | 2022 | |
| Pharmaessentia USA Corporation | $21.95 | 2025 | Besremi |
| Regeneron Healthcare Solutions, INC. | $21.52 | 2025 | Libtayo |
| Mirati Therapeutics, INC. | $21.00 | 2023 | Krazati |
| Genmab U.S., INC. | $20.97 | 2024 | Tivdak |
| Kite Pharma, INC. | $20.91 | 2021 | |
| Tersera Therapeutics LLC | $19.53 | 2025 | Xermelo |
| Alnylam Pharmaceuticals INC. | $18.62 | 2025 | Givlaari |
| Boston Scientific Corporation | $17.97 | 2025 | Therasphere Y90 Glass Microspheres 10 Gbq |
| Emd Serono, INC. | $17.83 | 2023 | Bavencio |
| Recordati_rare_diseases_inc. | $17.38 | 2023 | Sylvant |
| Morphosys, US INC. | $17.30 | 2023 | Monjuvi |
| Adc Therapeutics America, INC. | $16.97 | 2025 | |
| Avyxa Pharma, LLC | $16.28 | 2025 | |
| Janssen Pharmaceuticals, INC | $15.35 | 2023 | Xarelto |
| Karyopharm Therapeutics INC. | $15.22 | 2024 | Xpovio |
| Adaptive Biotechnologies Corporation | $15.02 | 2024 | Clonoseq |
| Kyowa Kirin, INC. | $14.87 | 2023 | Poteligeo |
| Epizyme, INC. | $13.95 | 2021 | |
| Shield Therapeutics INC | $13.55 | 2025 |
6 companies reported research payments only; those appear in the research section below.
Drugs and devices associated with these payments
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.
Research and ownership
$18,373.59 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Christopher Chay 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.