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

YUNG LYOU

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1013277342
CMS profile
420704
Location
FULLERTON, 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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Filter and download payment records

General Payments · PY2025 · Entire year

$7,636.65

120 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $5,230.00 6
Food and Beverage $2,373.93 113
Education $32.72 1

By paying entity

PY2025 · entire year · sorted by reported total

Page 2 of 3; records 51–100 of 120 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

YUNG LYOU

NPI 1013277342 · CMS profile ID 420704

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

FULLERTON, 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.

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, PY2025; 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 2 of 3; records 51–100 of 120 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1013277342?year=2025&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e

Cite these filtered records

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

Plain
YUNG LYOU, NPI 1013277342, CMS profile ID 420704. General Payments, PY2025; 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 2 of 3; records 51–100 of 120 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1013277342?year=2025&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). YUNG LYOU, NPI 1013277342, CMS profile ID 420704. General Payments, PY2025; 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 2 of 3; records 51–100 of 120 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1013277342?year=2025&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
YUNG LYOU, NPI 1013277342, CMS profile ID 420704, IndustryPayments, General Payments, PY2025; 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 2 of 3; records 51–100 of 120 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e. https://industrypayments.org/provider/npi-1013277342?year=2025&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

120 matching records · $7,636.65 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 120 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 51–100 of 120.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Celgene Corporation $2.4708/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608525 CMS
Celgene Corporation $16.4708/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608530 CMS
PFIZER INC. $8.3408/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229281859 CMS
Novartis Pharmaceuticals Corporation $29.1808/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200680984 CMS
Janssen Biotech, Inc. $37.5108/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174621269 CMS
Amgen Inc. $32.7208/01/2025 Education No dispute reported Delay: No
Change: NEW
06/30/2026 1226877874 CMS
Aveo Pharmaceuticals, Inc. $26.8407/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1199901596 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.3007/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223860007 CMS
Eisai Inc. $23.1207/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244520488 CMS
AstraZeneca Pharmaceuticals LP $22.2707/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206864906 CMS
Novartis Pharmaceuticals Corporation $30.3807/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200680982 CMS
ARRAY BIOPHARMA INC $17.8707/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1229033092 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.5907/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223033568 CMS
Novartis Pharmaceuticals Corporation $17.5207/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200680976 CMS
AstraZeneca Pharmaceuticals LP $550.0007/02/2025 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/2026 1206245364 CMS
Coherus Oncology, Inc. $21.9007/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235237033 CMS
AstraZeneca Pharmaceuticals LP $19.3306/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206611460 CMS
Merck Sharp & Dohme LLC $26.7106/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238143480 CMS
Exelixis Inc. $32.4806/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1218808752 CMS
Merck Sharp & Dohme LLC $20.5006/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238143482 CMS
Celgene Corporation $8.0905/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608445 CMS
Celgene Corporation $18.0605/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608449 CMS
Takeda Pharmaceuticals U.S.A., Inc. $35.8905/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223936030 CMS
Aveo Pharmaceuticals, Inc. $24.1105/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1199901594 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.1305/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223033566 CMS
ARRAY BIOPHARMA INC $6.7305/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1231718535 CMS
Janssen Biotech, Inc. $29.8605/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174621412 CMS
Genentech USA, Inc. $27.8305/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1211610503 CMS
ABBVIE INC. $27.2205/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202338474 CMS
ABBVIE INC. $0.5305/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202338472 CMS
PFIZER INC. $7.4005/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1228960310 CMS
Lilly USA, LLC $23.0104/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1186957971 CMS
Celgene Corporation $14.8704/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608406 CMS
Celgene Corporation $2.7704/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608411 CMS
Celgene Corporation $17.6104/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608416 CMS
Regeneron Healthcare Solutions, Inc. $36.9204/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1212979413 CMS
Daiichi Sankyo Inc. $29.2904/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1197098203 CMS
ARRAY BIOPHARMA INC $15.3904/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1228980526 CMS
AstraZeneca Pharmaceuticals LP $24.8704/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206546629 CMS
Janssen Biotech, Inc. $16.8904/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174619632 CMS
AstraZeneca Pharmaceuticals LP $125.0004/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206138120 CMS
AstraZeneca Pharmaceuticals LP $21.5204/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206184148 CMS
Novartis Pharmaceuticals Corporation $17.5404/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200680960 CMS
Merck Sharp & Dohme LLC $30.9804/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238095551 CMS
AstraZeneca Pharmaceuticals LP $23.8504/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206440368 CMS
Eisai Inc. $31.3704/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244520486 CMS
Alexion Pharmaceuticals, Inc. $14.4003/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1202923488 CMS
Celgene Corporation $14.4203/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608721 CMS
Celgene Corporation $1.8803/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184608724 CMS
Daiichi Sankyo Inc. $20.6303/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1197048669 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $474.31 6
PY2020 $1,726.08 9
PY2021 $8,659.85 9
PY2022 $22,048.04 62
PY2023 $19,024.99 97
PY2024 $3,554.47 117
PY2025 $7,636.65 120

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.