Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

STEVEN SIWEI YU

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1659643682
CMS profile
1392028
Location
FOUNTAIN VALLEY, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2023 · Entire year

$5,523.57

281 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $5,523.57 281

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
Novartis Pharmaceuticals Corporation $445.64 21
AstraZeneca Pharmaceuticals LP $338.02 16
Merck Sharp & Dohme LLC $335.58 15
Incyte Corporation $316.79 13
Janssen Biotech, Inc. $308.93 16
Celgene Corporation $246.08 26
PFIZER INC. $244.94 11
E.R. Squibb & Sons, L.L.C. $197.61 21
Gilead Sciences, Inc. $188.56 10
Genentech USA, Inc. $164.83 6
Takeda Pharmaceuticals U.S.A., Inc. $163.47 7
Eisai Inc. $155.98 8
Bayer Healthcare Pharmaceuticals Inc. $150.09 9
Astellas Pharma US Inc $143.27 6
Lilly USA, LLC $141.53 6
Exelixis Inc. $130.61 4
Pharmacyclics LLC, An AbbVie Company $128.24 10
Seagen Inc. $128.07 6
Puma Biotechnology, Inc. $102.36 4
Blueprint Medicines Corporation $98.67 3
AVEO Pharmaceuticals, Inc. $94.72 4
Karyopharm Therapeutics Inc. $93.43 4
Daiichi Sankyo Inc. $89.60 4
Stemline Therapeutics Inc. $88.76 4
Kite Pharma, Inc. $83.98 4
Alexion Pharmaceuticals, Inc. $73.95 3
Verity Pharmaceuticals Inc. $65.24 3
Amgen Inc. $61.35 3
Regeneron Healthcare Solutions, Inc. $60.32 2
Rigel Pharmaceuticals, Inc. $56.81 3
GENZYME CORPORATION $56.43 3
Progenics Pharmaceuticals, Inc. $51.83 1
ABBVIE INC. $46.03 2
MorphoSys, US Inc. $41.02 2
Kyowa Kirin, Inc. $38.45 2
Boehringer Ingelheim Pharmaceuticals, Inc. $37.11 2
Foundation Medicine, Inc. $36.55 2
SOBI, INC $34.93 2
GlaxoSmithKline, LLC. $34.06 2
Jazz Pharmaceuticals Inc. $32.22 1
Dendreon Pharmaceuticals LLC $31.27 1
Deciphera Pharmaceuticals Inc. $29.98 1
Genmab U.S., Inc. $24.66 1
CTI BioPharma Corp. $22.91 1
ImmunoGen, Inc. $21.71 1
TerSera Therapeutics LLC $21.30 1
Pharmacosmos Therapeutics Inc. $19.23 1
Organon LLC $19.15 1
Octapharma USA, Inc. $13.86 1
SERVIER PHARMACEUTICALS LLC $13.44 1

Payment records · PY2023

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

281 matching records · $5,523.57 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 281 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 281.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Eisai Inc. $19.5912/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048247981 CMS
Takeda Pharmaceuticals U.S.A., Inc. $28.2412/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056051465 CMS
Pharmacyclics LLC, An AbbVie Company $22.4212/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298357 CMS
Pharmacyclics LLC, An AbbVie Company $0.7212/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298355 CMS
MorphoSys, US Inc. $18.7012/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060327609 CMS
PFIZER INC. $29.2912/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050247951 CMS
Exelixis Inc. $25.8312/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044629747 CMS
Deciphera Pharmaceuticals Inc. $29.9812/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261053722209 CMS
Janssen Biotech, Inc. $22.2612/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988182119 CMS
Celgene Corporation $17.4412/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016061603 CMS
GENZYME CORPORATION $19.8812/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050309791 CMS
Janssen Biotech, Inc. $10.6412/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988182161 CMS
PFIZER INC. $24.9712/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261049644505 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.7312/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056051461 CMS
Incyte Corporation $26.2711/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044600963 CMS
Bayer Healthcare Pharmaceuticals Inc. $13.6311/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999995731 CMS
E.R. Squibb & Sons, L.L.C. $8.4311/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016061585 CMS
SERVIER PHARMACEUTICALS LLC $13.4411/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261055094261 CMS
AstraZeneca Pharmaceuticals LP $19.1311/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051632169 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.8411/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056051457 CMS
Merck Sharp & Dohme LLC $30.5211/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048844789 CMS
Celgene Corporation $13.9411/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016061588 CMS
Janssen Biotech, Inc. $17.9411/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026988182109 CMS
Pharmacyclics LLC, An AbbVie Company $0.5511/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298351 CMS
Pharmacyclics LLC, An AbbVie Company $28.2411/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298353 CMS
Foundation Medicine, Inc. $13.8010/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261058794173 CMS
Gilead Sciences, Inc. $27.4010/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261025587997 CMS
E.R. Squibb & Sons, L.L.C. $8.1210/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016061545 CMS
Eisai Inc. $24.1910/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048247977 CMS
Lilly USA, LLC $22.0610/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261032274837 CMS
Karyopharm Therapeutics Inc. $29.0510/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056909445 CMS
PFIZER INC. $26.3910/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050156733 CMS
Novartis Pharmaceuticals Corporation $23.8010/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993270253 CMS
PFIZER INC. $22.1310/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261050065895 CMS
Puma Biotechnology, Inc. $29.0210/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261059059831 CMS
AstraZeneca Pharmaceuticals LP $14.9310/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261051633351 CMS
Astellas Pharma US Inc $27.7310/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044336995 CMS
Merck Sharp & Dohme LLC $25.9510/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261048688359 CMS
Novartis Pharmaceuticals Corporation $21.8310/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993270249 CMS
Seagen Inc. $33.2810/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026995815427 CMS
Pharmacyclics LLC, An AbbVie Company $20.7410/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298349 CMS
Amgen Inc. $22.9010/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261020151381 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.2310/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261056051453 CMS
Novartis Pharmaceuticals Corporation $21.7310/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026993270251 CMS
Pharmacyclics LLC, An AbbVie Company $0.9610/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026998298347 CMS
GlaxoSmithKline, LLC. $16.7810/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261003134109 CMS
Alexion Pharmaceuticals, Inc. $26.1810/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261026469835 CMS
Celgene Corporation $24.2510/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261016061561 CMS
Incyte Corporation $29.1810/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044600902 CMS
Incyte Corporation $26.6509/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261044600815 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,936.66 233
PY2020 $3,438.53 201
PY2021 $3,854.44 222
PY2022 $4,888.59 268
PY2023 $5,523.57 281
PY2024 $6,327.90 271
PY2025 $6,462.09 272

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
STEVEN SIWEI YU, NPI 1659643682. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1659643682.
APA 7
IndustryPayments. (2026). STEVEN SIWEI YU, NPI 1659643682 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1659643682
Bluebook
STEVEN SIWEI YU, NPI 1659643682, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1659643682.

Source: Centers for Medicare & Medicaid Services, Open Payments.