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.

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General Payments · PY2021 · Entire year

$3,854.44

222 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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,789.45 221
Education $64.99 1

By paying entity

PY2021 · entire year · sorted by reported total

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

222 matching records · $3,854.44 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 222 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 222.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PUMA BIOTECHNOLOGY, INC. $24.6612/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026834091901 CMS
Seagen Inc. $12.5112/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832181225 CMS
Eisai Inc. $23.8512/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851407829 CMS
Merck Sharp & Dohme Corporation $20.2412/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848463207 CMS
Seagen Inc. $9.4112/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832181221 CMS
ARRAY BIOPHARMA INC $22.8912/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833292553 CMS
PFIZER INC. $19.1712/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833565755 CMS
PFIZER INC. $0.7412/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833573009 CMS
Incyte Corporation $27.5812/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835562785 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $19.9712/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815032291 CMS
Aveo Pharmaceuticals, Inc. $28.3012/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026852623961 CMS
Octapharma USA, Inc. $13.6212/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026812976689 CMS
Gilead Sciences, Inc. $18.7812/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848304429 CMS
GlaxoSmithKline, LLC. $25.6811/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026802236927 CMS
AstraZeneca Pharmaceuticals LP $19.0111/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026830225375 CMS
Deciphera Pharmaceuticals Inc. $18.7811/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026826798649 CMS
Amgen Inc. $24.8411/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026826439709 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $17.9211/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815032287 CMS
Pharmacyclics LLC, an AbbVie Company $0.8111/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026782545545 CMS
Pharmacyclics LLC, an AbbVie Company $19.3811/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026782545547 CMS
PFIZER INC. $5.7811/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833288903 CMS
PFIZER INC. $2.4611/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833288905 CMS
Karyopharm Therapeutics Inc. $33.6611/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026845789023 CMS
Sobi, Inc $18.1311/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851495641 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $16.1111/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763626360 CMS
E.R. Squibb & Sons, L.L.C. $21.8311/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783561313 CMS
E.R. Squibb & Sons, L.L.C. $0.2911/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783561315 CMS
GENZYME CORPORATION $12.7711/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843701383 CMS
AbbVie Inc. $15.9410/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799366409 CMS
Seagen Inc. $21.0410/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832181209 CMS
Celgene Corporation $19.1810/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783707681 CMS
Pharmacyclics LLC, an AbbVie Company $0.7310/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026782545541 CMS
Pharmacyclics LLC, an AbbVie Company $24.5610/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026782545543 CMS
Seagen Inc. $0.3610/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832181217 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $18.6310/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815032283 CMS
Lilly USA, LLC $24.8810/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026937119003 CMS
Seagen Inc. $20.2110/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832181213 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $20.8810/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815032295 CMS
NOVARTIS PHARMACEUTICALS CORPORATION $18.1410/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815032275 CMS
Eisai Inc. $15.7210/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851407513 CMS
Celgene Corporation $20.9910/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783707679 CMS
Gilead Sciences, Inc. $19.3610/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848304427 CMS
PUMA BIOTECHNOLOGY, INC. $16.6810/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026834091369 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.1710/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763626362 CMS
Incyte Corporation $18.9810/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835562745 CMS
PFIZER INC. $8.9110/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833424775 CMS
Aveo Pharmaceuticals, Inc. $17.8710/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026852623957 CMS
Amgen Inc. $26.4210/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825810081 CMS
PFIZER INC. $16.7410/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833421153 CMS
Pharmacyclics LLC, an AbbVie Company $0.8010/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026782545537 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.