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 · PY2020 · Entire year

$890.72

53 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $747.35 41
Education $143.37 12

By paying entity

PY2020 · entire year · sorted by reported total

Payment records · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

53 matching records · $890.72 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 53 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 53.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $8.0711/05/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813209 CMS
PFIZER INC. $11.9011/05/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813315 CMS
PFIZER INC. $8.1610/15/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813207 CMS
E.R. Squibb & Sons, L.L.C. $10.4509/08/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010083 CMS
PFIZER INC. $13.3408/19/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813313 CMS
E.R. Squibb & Sons, L.L.C. $6.2508/05/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010075 CMS
E.R. Squibb & Sons, L.L.C. $31.3607/27/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010077 CMS
PFIZER INC. $9.7607/16/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743522845 CMS
Exelixis Inc. $19.5804/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737175639 CMS
Novartis Pharmaceuticals Corporation $18.2303/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725631793 CMS
Merck Sharp & Dohme Corporation $19.1203/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747738543 CMS
Merck Sharp & Dohme Corporation $18.1603/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747631601 CMS
PFIZER INC. $22.0003/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743512571 CMS
Pharmacyclics LLC, An AbbVie Company $18.2602/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725660685 CMS
Kite Pharma, Inc. $19.1802/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026731504737 CMS
PFIZER INC. $11.0502/21/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743531235 CMS
PFIZER INC. $8.0802/21/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743564209 CMS
PFIZER INC. $13.9002/21/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743581595 CMS
Bayer HealthCare Pharmaceuticals Inc. $24.9202/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026713629619 CMS
E.R. Squibb & Sons, L.L.C. $10.7502/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010067 CMS
Genentech USA, Inc. $17.2302/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743129179 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.7802/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747334293 CMS
PFIZER INC. $3.7502/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743515080 CMS
PFIZER INC. $20.1702/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743532465 CMS
E.R. Squibb & Sons, L.L.C. $19.2602/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010065 CMS
GlaxoSmithKline, LLC. $19.3302/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026738512715 CMS
Merck Sharp & Dohme Corporation $15.1402/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747706335 CMS
Novartis Pharmaceuticals Corporation $19.2102/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725631787 CMS
Clovis Oncology, Inc. $19.3402/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026722231567 CMS
PFIZER INC. $0.2501/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743515837 CMS
PFIZER INC. $15.9601/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743565427 CMS
Daiichi Sankyo Inc. $21.9201/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739482627 CMS
Novartis Pharmaceuticals Corporation $19.9401/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725631783 CMS
Octapharma USA, Inc. $16.5001/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026735922022 CMS
Alexion Pharmaceuticals, Inc. $24.4401/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726634301 CMS
PFIZER INC. $11.0501/29/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743514763 CMS
AstraZeneca Pharmaceuticals LP $21.5601/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026735813061 CMS
PFIZER INC. $5.1301/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743571172 CMS
PFIZER INC. $5.0201/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743516449 CMS
E.R. Squibb & Sons, L.L.C. $17.5001/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010061 CMS
PFIZER INC. $21.3201/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743709449 CMS
Celgene Corporation $20.5101/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728010093 CMS
GENZYME CORPORATION $22.9001/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744230367 CMS
Novartis Pharmaceuticals Corporation $20.3601/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725631779 CMS
Seagen Inc. $28.0501/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026732436895 CMS
Genentech USA, Inc. $17.5001/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743129172 CMS
Novartis Pharmaceuticals Corporation $17.2401/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725631773 CMS
AstraZeneca Pharmaceuticals LP $18.7401/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026736105881 CMS
Seagen Inc. $27.7401/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026732436887 CMS
Daiichi Sankyo Inc. $23.5301/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739479321 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.

Cite this record.

Plain
WALAILUK CHAIYARAT, NPI 1811140478. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1811140478.
APA 7
IndustryPayments. (2026). WALAILUK CHAIYARAT, NPI 1811140478 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1811140478
Bluebook
WALAILUK CHAIYARAT, NPI 1811140478, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1811140478.

Source: Centers for Medicare & Medicaid Services, Open Payments.