Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

YAT CHOI KWONG

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1649315698
CMS profile
74732
Location
LOS ANGELES, CA

General Payments · PY2018–2024

$190,160.76

  • Reported across 170 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$26,456.13

44 records · 0 disputed

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

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $23,937.50 11
Travel and Lodging $1,533.59 1
Food and Beverage $985.04 32

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Phadia US Inc. $25,570.24 14
GlaxoSmithKline, LLC. $270.49 15
SOBI, INC $127.50 1
Blueprint Medicines Corporation $118.92 1
NOVARTIS PHARMACEUTICALS CORPORATION $108.77 4
BioCryst US Sales Co., LLC $76.56 3
Pharming Healthcare, Inc. $75.44 3
CSL Behring $61.21 2
GENZYME CORPORATION $47.00 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $10,294.95 12
PY2019 $490.00 16
PY2020 $334.46 12
PY2021 $490.04 14
PY2022 $97,412.95 27
PY2023 $54,682.23 45
PY2024 $26,456.13 44

Payment records · PY2024 (44)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
BioCryst US Sales Co., LLC $18.91 06/18/2024 Food and Beverage Undisputed 01/23/2026 1117477328 CMS
BioCryst US Sales Co., LLC $30.05 08/21/2024 Food and Beverage Undisputed 01/23/2026 1117473670 CMS
BioCryst US Sales Co., LLC $27.60 10/16/2024 Food and Beverage Undisputed 01/23/2026 1117481872 CMS
Blueprint Medicines Corporation $118.92 08/13/2024 Food and Beverage Undisputed 01/23/2026 1147455525 CMS
CSL Behring $36.02 09/16/2024 Food and Beverage Undisputed 01/23/2026 1134655289 CMS
CSL Behring $25.19 10/10/2024 Food and Beverage Undisputed 01/23/2026 1134655297 CMS
GENZYME CORPORATION $47.00 01/17/2024 Food and Beverage Undisputed 01/23/2026 1139605633 CMS
GlaxoSmithKline, LLC. $21.82 02/23/2024 Food and Beverage Undisputed 01/23/2026 1116078155 CMS
GlaxoSmithKline, LLC. $28.62 03/15/2024 Food and Beverage Undisputed 01/23/2026 1116546425 CMS
GlaxoSmithKline, LLC. $32.11 04/22/2024 Food and Beverage Undisputed 01/23/2026 1116297698 CMS
GlaxoSmithKline, LLC. $1.75 04/22/2024 Food and Beverage Undisputed 01/23/2026 1116630238 CMS
GlaxoSmithKline, LLC. $27.73 06/17/2024 Food and Beverage Undisputed 01/23/2026 1116520490 CMS
GlaxoSmithKline, LLC. $26.58 07/21/2024 Food and Beverage Undisputed 01/23/2026 1116421115 CMS
GlaxoSmithKline, LLC. $1.38 07/23/2024 Food and Beverage Undisputed 01/23/2026 1115985709 CMS
GlaxoSmithKline, LLC. $1.84 08/15/2024 Food and Beverage Undisputed 01/23/2026 1115897824 CMS
GlaxoSmithKline, LLC. $24.42 08/15/2024 Food and Beverage Undisputed 01/23/2026 1116222115 CMS
GlaxoSmithKline, LLC. $26.71 08/20/2024 Food and Beverage Undisputed 01/23/2026 1116508073 CMS
GlaxoSmithKline, LLC. $23.71 10/08/2024 Food and Beverage Undisputed 01/23/2026 1116304691 CMS
GlaxoSmithKline, LLC. $1.89 10/08/2024 Food and Beverage Undisputed 01/23/2026 1116712689 CMS
GlaxoSmithKline, LLC. $23.87 10/23/2024 Food and Beverage Undisputed 01/23/2026 1116326406 CMS
GlaxoSmithKline, LLC. $24.02 11/21/2024 Food and Beverage Undisputed 01/23/2026 1116186678 CMS
GlaxoSmithKline, LLC. $4.04 11/21/2024 Food and Beverage Undisputed 01/23/2026 1116327134 CMS
Novartis Pharmaceuticals Corporation $22.27 04/23/2024 Food and Beverage Undisputed 01/23/2026 1087024744 CMS
Novartis Pharmaceuticals Corporation $26.98 06/25/2024 Food and Beverage Undisputed 01/23/2026 1087024750 CMS
Novartis Pharmaceuticals Corporation $30.26 07/31/2024 Food and Beverage Undisputed 01/23/2026 1087024760 CMS
Novartis Pharmaceuticals Corporation $29.26 11/08/2024 Food and Beverage Undisputed 01/23/2026 1087024788 CMS
Phadia US Inc. $250.00 01/16/2024 Consulting Fee Undisputed 01/23/2026 1067574510 CMS
Phadia US Inc. $2,125.00 01/16/2024 Consulting Fee Undisputed 01/23/2026 1067574512 CMS
Phadia US Inc. $75.80 04/03/2024 Food and Beverage Undisputed 01/23/2026 1067588254 CMS
Phadia US Inc. $1,500.00 04/05/2024 Consulting Fee Undisputed 01/23/2026 1067574514 CMS
Phadia US Inc. $7,250.00 05/10/2024 Consulting Fee Undisputed 01/23/2026 1067574516 CMS
Phadia US Inc. $1,533.59 05/10/2024 Travel and Lodging Undisputed 01/23/2026 1067574518 CMS
Phadia US Inc. $23.35 05/10/2024 Food and Beverage Undisputed 01/23/2026 1067574520 CMS
Phadia US Inc. $3,562.50 05/22/2024 Consulting Fee Undisputed 01/23/2026 1067574522 CMS
Phadia US Inc. $2,125.00 07/11/2024 Consulting Fee Undisputed 01/23/2026 1067574524 CMS
Phadia US Inc. $1,125.00 07/11/2024 Consulting Fee Undisputed 01/23/2026 1067574526 CMS
Phadia US Inc. $3,000.00 09/13/2024 Consulting Fee Undisputed 01/23/2026 1067574528 CMS
Phadia US Inc. $1,000.00 09/13/2024 Consulting Fee Undisputed 01/23/2026 1067574530 CMS
Phadia US Inc. $125.00 11/19/2024 Consulting Fee Undisputed 01/23/2026 1067574532 CMS
Phadia US Inc. $1,875.00 11/19/2024 Consulting Fee Undisputed 01/23/2026 1067574534 CMS
Pharming Healthcare, Inc. $22.23 07/09/2024 Food and Beverage Undisputed 01/23/2026 1132153742 CMS
Pharming Healthcare, Inc. $28.76 09/03/2024 Food and Beverage Undisputed 01/23/2026 1132153746 CMS
Pharming Healthcare, Inc. $24.45 12/04/2024 Food and Beverage Undisputed 01/23/2026 1132153752 CMS
SOBI, INC $127.50 01/09/2024 Food and Beverage Undisputed 01/23/2026 1141435603 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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