Covered recipient · General Payments record

WALAILUK CHAIYARAT

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI: 1811140478
CMS profile: 354879
Location: CONCORD, 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 · PY2022 · Entire year

$2,268.28

104 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

PY2022 · entire year · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$2,126.63	101
Education	$141.65	3

By paying entity

PY2022 · entire year · sorted by reported total

Paying entity	Amount	Records
Amgen Inc.	$165.20	6
Celgene Corporation	$158.22	8
Takeda Pharmaceuticals U.S.A., Inc.	$155.37	14
Seagen Inc.	$149.45	6
Janssen Biotech, Inc.	$137.12	6
Merck Sharp & Dohme LLC	$124.91	6
GlaxoSmithKline, LLC.	$118.76	4
PFIZER INC.	$117.14	6
ARRAY BIOPHARMA INC	$113.97	4
SANOFI-AVENTIS U.S. LLC	$99.00	1
AstraZeneca Pharmaceuticals LP	$98.19	5
Pharmacyclics LLC, an AbbVie Company	$83.28	3
GENZYME CORPORATION	$77.17	3
E.R. Squibb & Sons, L.L.C.	$73.61	4
Lilly USA, LLC	$64.73	3
EISAI INC.	$64.15	3
Incyte Corporation	$53.69	3
Dendreon Pharmaceuticals LLC	$43.67	1
Kite Pharma, Inc.	$38.82	2
Astellas Pharma US Inc	$38.47	2
Edwards Lifesciences Corporation	$32.35	1
Regeneron Healthcare Solutions, Inc.	$25.98	1
Myovant Sciences Inc.	$25.66	1
Exelixis Inc.	$22.59	1
BeiGene USA, Inc.	$22.01	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.67	1
Sobi, Inc	$21.07	1
Kyowa Kirin, Inc.	$20.72	1
Genentech USA, Inc.	$19.14	1
EUSA Pharma (US) LLC	$18.43	1
SERVIER PHARMACEUTICALS LLC	$18.14	1
Deciphera Pharmaceuticals Inc.	$18.07	1
Janssen Pharmaceuticals, Inc	$15.45	1
Taiho Oncology, Inc.	$12.08	1

Page 1 of 3; records 1–50 of 104 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

WALAILUK CHAIYARAT

NPI 1811140478 · CMS profile ID 354879

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

CONCORD, 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, PY2022; 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 3; records 1–50 of 104 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1811140478?year=2022&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

Cite these filtered records

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

Plain: WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879. General Payments, PY2022; 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 3; records 1–50 of 104 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1811140478?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7: IndustryPayments. (2026). WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879. General Payments, PY2022; 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 3; records 1–50 of 104 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1811140478?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook: WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879, IndustryPayments, General Payments, PY2022; 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 3; records 1–50 of 104 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1811140478?year=2022&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 · PY2022

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 · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

104 matching records · $2,268.28 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 104 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 104.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
EISAI INC.	$19.09	12/21/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	908096803	CMS
Seagen Inc.	$25.94	12/16/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	904088651	CMS
Amgen Inc.	$29.09	12/15/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	939255767	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.07	12/14/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605917	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$3.89	12/14/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605919	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$1.18	12/14/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605921	CMS
Janssen Biotech, Inc.	$22.01	12/12/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	885531647	CMS
Janssen Biotech, Inc.	$29.95	12/10/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	885531655	CMS
Amgen Inc.	$24.69	12/08/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	939255763	CMS
EISAI INC.	$24.90	12/07/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	908096807	CMS
Seagen Inc.	$32.70	12/06/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	904088641	CMS
Pharmacyclics LLC, an AbbVie Company	$23.18	12/03/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	890337785	CMS
ARRAY BIOPHARMA INC	$38.06	12/02/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	949508753	CMS
Incyte Corporation	$13.25	12/02/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	943024777	CMS
Kite Pharma, Inc.	$17.31	12/01/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	920067049	CMS
PFIZER INC.	$32.58	11/30/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	949477173	CMS
Lilly USA, LLC	$24.55	11/29/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	918328189	CMS
Dendreon Pharmaceuticals LLC	$43.67	11/22/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	943097783	CMS
Kyowa Kirin, Inc.	$20.72	11/22/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	905068923	CMS
Janssen Biotech, Inc.	$21.86	11/17/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	885531645	CMS
Seagen Inc.	$18.32	11/10/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	904088649	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$17.94	11/09/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605911	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$6.31	11/09/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605913	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$1.02	11/09/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605915	CMS
E.R. Squibb & Sons, L.L.C.	$21.72	11/08/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	932732971	CMS
Merck Sharp & Dohme LLC	$23.38	11/04/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	944249673	CMS
ARRAY BIOPHARMA INC	$35.52	11/03/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	949501803	CMS
Genentech USA, Inc.	$19.14	11/01/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	950728763	CMS
BeiGene USA, Inc.	$22.01	10/31/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	940795773	CMS
AstraZeneca Pharmaceuticals LP	$20.60	10/28/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	915880603	CMS
AstraZeneca Pharmaceuticals LP	$21.95	10/27/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	915538935	CMS
ARRAY BIOPHARMA INC	$21.96	10/26/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	949478121	CMS
GlaxoSmithKline, LLC.	$29.52	10/26/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	945098945	CMS
GENZYME CORPORATION	$23.16	10/25/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	938954441	CMS
Deciphera Pharmaceuticals Inc.	$18.07	10/20/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	953434053	CMS
PFIZER INC.	$23.00	10/20/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	949455043	CMS
EISAI INC.	$20.16	10/18/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	908096799	CMS
Amgen Inc.	$22.56	10/14/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	939864737	CMS
EUSA Pharma (US) LLC	$18.43	10/13/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	964301731	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$31.90	10/13/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	955605909	CMS
Celgene Corporation	$24.74	10/12/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	932732929	CMS
Taiho Oncology, Inc.	$12.08	10/10/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	924013157	CMS
Celgene Corporation	$17.75	10/07/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	932732941	CMS
Lilly USA, LLC	$16.88	10/06/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	918334851	CMS
SERVIER PHARMACEUTICALS LLC	$18.14	10/04/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	964207701	CMS
Celgene Corporation	$12.92	09/30/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	932732939	CMS
Amgen Inc.	$22.72	09/27/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	939864735	CMS
Celgene Corporation	$19.57	09/26/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	932732927	CMS
Janssen Biotech, Inc.	$20.06	09/21/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	885531641	CMS
Seagen Inc.	$38.77	09/20/2022	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	904088653	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2019	$2,850.74	142
PY2020	$890.72	53
PY2021	$357.21	22
PY2022	$2,268.28	104
PY2023	$4,257.96	187
PY2024	$2,569.18	110
PY2025	$3,729.71	133

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.