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

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 · PY2025 · Entire year

$3,729.71

133 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

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,009.79 125
Long term medical supply or device loan $598.20 6
Education $121.72 2

By paying entity

PY2025 · entire year · sorted by reported total

Page 1 of 3; records 1–50 of 133 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 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 1 of 3; records 1–50 of 133 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1811140478?year=2025&recipient=provider#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
WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879. 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 1 of 3; records 1–50 of 133 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1811140478?year=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
APA 7
IndustryPayments. (2026). WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879. 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 1 of 3; records 1–50 of 133 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=2025&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb0b1734-1410-429d-92f6-3f4b35218e5e.
Bluebook
WALAILUK CHAIYARAT, NPI 1811140478, CMS profile ID 354879, 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 1 of 3; records 1–50 of 133 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-1811140478?year=2025&recipient=provider#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

133 matching records · $3,729.71 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 133 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 133.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Novartis Pharmaceuticals Corporation $99.7012/30/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200084836 CMS
Coherus Oncology, Inc. $41.4912/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235237431 CMS
AstraZeneca Pharmaceuticals LP $34.6412/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206896568 CMS
Agios Pharmaceuticals, Inc. $24.8512/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1253259419 CMS
Merck Sharp & Dohme LLC $18.2112/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238135401 CMS
AstraZeneca Pharmaceuticals LP $31.9112/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206772754 CMS
Janssen Biotech, Inc. $27.8612/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174582343 CMS
Novartis Pharmaceuticals Corporation $99.7011/26/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200084828 CMS
ABBVIE INC. $8.7611/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1201625762 CMS
E.R. Squibb & Sons, L.L.C. $23.6111/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928111 CMS
Celgene Corporation $27.8111/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928233 CMS
PharmaEssentia USA Corporation $30.9611/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1246829306 CMS
AstraZeneca Pharmaceuticals LP $31.7311/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206663536 CMS
EMD Serono, Inc. $29.7311/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236890803 CMS
Geron Corporation $34.4411/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238887452 CMS
PFIZER INC. $31.2511/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1230895065 CMS
Eisai Inc. $17.7111/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1244518608 CMS
SOBI, INC $23.1911/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1240275839 CMS
ABBVIE INC. $16.2610/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1201625760 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.6710/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1223886933 CMS
Merck Sharp & Dohme LLC $25.3010/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238276337 CMS
Celgene Corporation $19.3510/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928227 CMS
Janssen Biotech, Inc. $24.7410/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174581641 CMS
Novartis Pharmaceuticals Corporation $99.7010/23/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200084826 CMS
Aveo Pharmaceuticals, Inc. $27.8310/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1199899822 CMS
AstraZeneca Pharmaceuticals LP $25.0010/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206382614 CMS
Genmab U.S., Inc. $29.0910/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1235929744 CMS
ABBVIE INC. $20.6210/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1201625758 CMS
EMD Serono, Inc. $36.3210/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1236890621 CMS
AstraZeneca Pharmaceuticals LP $14.4610/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206476303 CMS
Gilead Sciences, Inc. $19.7810/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1234530729 CMS
Janssen Biotech, Inc. $24.7410/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1174582585 CMS
E.R. Squibb & Sons, L.L.C. $22.8609/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928215 CMS
E.R. Squibb & Sons, L.L.C. $0.9609/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928225 CMS
GlaxoSmithKline, LLC. $17.3909/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1191222182 CMS
Merck Sharp & Dohme LLC $29.3309/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1238360979 CMS
Novartis Pharmaceuticals Corporation $99.7009/19/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200084838 CMS
AstraZeneca Pharmaceuticals LP $27.8809/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206556195 CMS
AstraZeneca Pharmaceuticals LP $34.1309/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1206696740 CMS
Novartis Pharmaceuticals Corporation $31.5609/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200084820 CMS
Novartis Pharmaceuticals Corporation $1.4109/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1200084822 CMS
PFIZER INC. $25.3409/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1230459317 CMS
PFIZER INC. $3.7409/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1230864035 CMS
E.R. Squibb & Sons, L.L.C. $12.8709/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1184928213 CMS
PFIZER INC. $37.6609/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1230394963 CMS
Exelixis Inc. $45.9509/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1218807440 CMS
GlaxoSmithKline, LLC. $28.6308/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1190730288 CMS
Bayer Healthcare Pharmaceuticals Inc. $34.7008/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1225490243 CMS
Novartis Pharmaceuticals Corporation $99.7008/21/2025 Long term medical supply or device loan No dispute reported Delay: No
Change: NEW
06/30/2026 1200084818 CMS
ABBVIE INC. $25.1708/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/2026 1201625756 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
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
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.