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 · PY2019 · Entire year

$3,936.66

233 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 July 26, 2026. 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

PY2019 · entire year · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$3,811.68	231
Education	$124.98	2

By paying entity

PY2019 · entire year · sorted by reported total

Paying entity	Amount	Records
Novartis Pharmaceuticals Corporation	$428.89	23
Genentech USA, Inc.	$359.84	20
E.R. Squibb & Sons, L.L.C.	$354.33	42
Merck Sharp & Dohme Corporation	$261.17	14
Takeda Pharmaceuticals U.S.A., Inc.	$243.02	9
PFIZER INC.	$231.21	17
Janssen Biotech, Inc.	$185.04	9
Exelixis Inc.	$181.34	6
Array BioPharma Inc.	$168.16	10
Lilly USA, LLC	$155.02	10
Pharmacyclics LLC, An AbbVie Company	$147.31	11
EISAI INC.	$146.78	7
Gilead Sciences, Inc.	$144.69	9
Amgen Inc.	$136.20	7
Incyte Corporation	$132.34	5
Celgene Corporation	$89.50	4
GENZYME CORPORATION	$78.07	4
AstraZeneca Pharmaceuticals LP	$60.71	3
EMD Serono, Inc.	$55.11	3
Boehringer Ingelheim Pharmaceuticals, Inc.	$48.37	3
Foundation Medicine, Inc.	$46.03	2
Seattle Genetics, Inc.	$45.62	2
Clovis Oncology, Inc.	$40.96	3
Lexicon Pharmaceuticals, Inc.	$37.61	2
Regeneron Healthcare Solutions, Inc.	$24.98	1
Jazz Pharmaceuticals Inc.	$23.20	1
Dova Pharmaceuticals	$22.35	1
Stemline Therapeutics Inc.	$22.08	1
Ipsen Biopharmaceuticals, Inc	$19.90	1
Rigel Pharmaceuticals, Inc.	$18.57	1
Alexion Pharmaceuticals, Inc.	$15.22	1
EUSA Pharma (US) LLC	$13.04	1

Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

STEVEN SIWEI YU

NPI 1659643682 · CMS profile ID 1392028

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

FOUNTAIN VALLEY, CA

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.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1659643682?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain: STEVEN SIWEI YU, NPI 1659643682, CMS profile ID 1392028. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1659643682?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7: IndustryPayments. (2026). STEVEN SIWEI YU, NPI 1659643682, CMS profile ID 1392028. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1659643682?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook: STEVEN SIWEI YU, NPI 1659643682, CMS profile ID 1392028, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1659643682?year=2019&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

General Payments only. Research Payments and Ownership/Investment Interests are separate datasets and are not included.

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

Centers for Medicare & Medicaid Services, Open Payments

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.

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.

IndustryPayments.org is not a consumer reporting agency as defined by the Fair Credit Reporting Act. Do not use this site to determine any person's eligibility for employment, credentialing, insurance, credit, housing, or any other purpose covered by the FCRA.

Methodology: https://industrypayments.org/methodology

Payment records · PY2019

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

Reporting company Nature of payment

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

233 matching records · $3,936.66 reported total · 0 disputed

Nature of payment: All payment types

Records imported here November 5, 2026 (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 233 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 233.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
Genentech USA, Inc.	$15.94	12/20/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681334101	CMS
PFIZER INC.	$14.97	12/20/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673767153	CMS
Lilly USA, LLC	$11.45	12/19/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	658182687	CMS
Novartis Pharmaceuticals Corporation	$3.96	12/19/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185857	CMS
Seattle Genetics, Inc.	$15.96	12/17/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	678803631	CMS
E.R. Squibb & Sons, L.L.C.	$12.05	12/13/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466601	CMS
E.R. Squibb & Sons, L.L.C.	$0.24	12/13/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466603	CMS
Novartis Pharmaceuticals Corporation	$17.36	12/11/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185855	CMS
Genentech USA, Inc.	$64.99	12/09/2019	Education	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681384623	CMS
PFIZER INC.	$20.53	12/09/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673639161	CMS
Array BioPharma Inc.	$22.06	12/06/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	700973487	CMS
E.R. Squibb & Sons, L.L.C.	$12.79	12/03/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466605	CMS
Novartis Pharmaceuticals Corporation	$21.65	12/03/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185823	CMS
E.R. Squibb & Sons, L.L.C.	$18.08	11/27/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466501	CMS
E.R. Squibb & Sons, L.L.C.	$0.68	11/27/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466503	CMS
Genentech USA, Inc.	$17.62	11/26/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681361703	CMS
Alexion Pharmaceuticals, Inc.	$15.22	11/25/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	730070329	CMS
Ipsen Biopharmaceuticals, Inc	$19.90	11/25/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	640636285	CMS
Amgen Inc.	$20.06	11/22/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	663083508	CMS
Novartis Pharmaceuticals Corporation	$18.29	11/19/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185831	CMS
Merck Sharp & Dohme Corporation	$20.00	11/15/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	695828923	CMS
PFIZER INC.	$10.03	11/15/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673704135	CMS
Exelixis Inc.	$24.93	11/14/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	686559045	CMS
Gilead Sciences, Inc.	$13.36	11/14/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681632825	CMS
PFIZER INC.	$1.40	11/14/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673747887	CMS
E.R. Squibb & Sons, L.L.C.	$0.40	11/12/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466679	CMS
E.R. Squibb & Sons, L.L.C.	$11.13	11/12/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466681	CMS
Novartis Pharmaceuticals Corporation	$15.63	11/12/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185839	CMS
EISAI INC.	$23.64	11/08/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	697020001	CMS
Lilly USA, LLC	$4.05	11/07/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	658168169	CMS
Lilly USA, LLC	$50.60	11/07/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	658168171	CMS
Lilly USA, LLC	$10.12	11/07/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	658175751	CMS
Array BioPharma Inc.	$18.40	11/05/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	700973485	CMS
Genentech USA, Inc.	$16.39	11/05/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681407703	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$20.92	10/31/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	697408335	CMS
PFIZER INC.	$15.45	10/30/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673754187	CMS
Merck Sharp & Dohme Corporation	$16.20	10/29/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	695808347	CMS
Pharmacyclics LLC, An AbbVie Company	$21.16	10/29/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	665852503	CMS
Merck Sharp & Dohme Corporation	$19.50	10/28/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	695793763	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$68.75	10/28/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	697412377	CMS
EISAI INC.	$19.02	10/24/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	697021681	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$12.80	10/24/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	697393375	CMS
E.R. Squibb & Sons, L.L.C.	$13.86	10/23/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	651466637	CMS
Foundation Medicine, Inc.	$24.96	10/22/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	685120187	CMS
PFIZER INC.	$11.20	10/21/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	673760933	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$13.91	10/18/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	700234241	CMS
Novartis Pharmaceuticals Corporation	$15.51	10/18/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	660185837	CMS
Janssen Biotech, Inc.	$18.98	10/17/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	658801543	CMS
Genentech USA, Inc.	$14.21	10/16/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681423679	CMS
Gilead Sciences, Inc.	$14.42	10/14/2019	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	681632823	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
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

Source files: Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.