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

WON K YU

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1720065303
CMS profile
123610
Location
TUSTIN, CA

General Payments · PY2018–2024

$6,964.68

  • Reported across 388 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,177.95

64 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
Food and Beverage $1,177.95 64

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $709.16 42
PY2019 $554.95 34
PY2020 $718.87 38
PY2021 $1,250.59 72
PY2022 $1,318.11 68
PY2023 $1,235.05 70
PY2024 $1,177.95 64

Payment records · PY2024 (64)

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
ABBVIE INC. $18.90 09/17/2024 Food and Beverage Undisputed 01/23/2026 1106384398 CMS
AIMMUNE THERAPEUTICS, INC. $10.75 01/16/2024 Food and Beverage Undisputed 01/23/2026 1147019368 CMS
AIMMUNE THERAPEUTICS, INC. $26.94 04/29/2024 Food and Beverage Undisputed 01/23/2026 1146977821 CMS
AIMMUNE THERAPEUTICS, INC. $16.28 05/21/2024 Food and Beverage Undisputed 01/23/2026 1146962573 CMS
AIMMUNE THERAPEUTICS, INC. $12.55 07/02/2024 Food and Beverage Undisputed 01/23/2026 1146976828 CMS
AIMMUNE THERAPEUTICS, INC. $17.74 08/06/2024 Food and Beverage Undisputed 01/23/2026 1147007235 CMS
AIMMUNE THERAPEUTICS, INC. $13.51 08/14/2024 Food and Beverage Undisputed 01/23/2026 1147007059 CMS
AIMMUNE THERAPEUTICS, INC. $21.02 09/11/2024 Food and Beverage Undisputed 01/23/2026 1146991066 CMS
AIMMUNE THERAPEUTICS, INC. $24.84 09/23/2024 Food and Beverage Undisputed 01/23/2026 1146991648 CMS
AIMMUNE THERAPEUTICS, INC. $14.54 10/08/2024 Food and Beverage Undisputed 01/23/2026 1146991252 CMS
AIMMUNE THERAPEUTICS, INC. $27.29 10/14/2024 Food and Beverage Undisputed 01/23/2026 1146991792 CMS
AIMMUNE THERAPEUTICS, INC. $24.71 11/05/2024 Food and Beverage Undisputed 01/23/2026 1147007029 CMS
ALBIREO PHARMA, INC. $20.35 04/08/2024 Food and Beverage Undisputed 01/23/2026 1071127090 CMS
ALBIREO PHARMA, INC. $20.35 06/24/2024 Food and Beverage Undisputed 01/23/2026 1071127092 CMS
ALBIREO PHARMA, INC. $21.60 09/09/2024 Food and Beverage Undisputed 01/23/2026 1071127094 CMS
Celgene Corporation $20.32 03/04/2024 Food and Beverage Undisputed 01/23/2026 1101191567 CMS
Celgene Corporation $21.24 03/18/2024 Food and Beverage Undisputed 01/23/2026 1101191569 CMS
Ferring Pharmaceuticals Inc. $21.75 12/17/2024 Food and Beverage Undisputed 01/23/2026 1137520159 CMS
GENZYME CORPORATION $27.35 06/18/2024 Food and Beverage Undisputed 01/23/2026 1139912545 CMS
Gilead Sciences, Inc. $13.71 01/15/2024 Food and Beverage Undisputed 01/23/2026 1133791797 CMS
Gilead Sciences, Inc. $28.05 02/12/2024 Food and Beverage Undisputed 01/23/2026 1133791799 CMS
Gilead Sciences, Inc. $18.99 04/22/2024 Food and Beverage Undisputed 01/23/2026 1133791801 CMS
IRONWOOD PHARMACEUTICALS, INC $23.25 01/30/2024 Food and Beverage Undisputed 01/23/2026 1153745060 CMS
Janssen Biotech, Inc. $17.12 02/06/2024 Food and Beverage Undisputed 01/23/2026 1078349316 CMS
Janssen Biotech, Inc. $0.89 02/06/2024 Food and Beverage Undisputed 01/23/2026 1078349401 CMS
Janssen Biotech, Inc. $7.41 03/19/2024 Food and Beverage Undisputed 01/23/2026 1078349453 CMS
Janssen Biotech, Inc. $23.81 06/17/2024 Food and Beverage Undisputed 01/23/2026 1078348957 CMS
Janssen Biotech, Inc. $8.80 08/28/2024 Food and Beverage Undisputed 01/23/2026 1078349332 CMS
Janssen Biotech, Inc. $9.19 10/01/2024 Food and Beverage Undisputed 01/23/2026 1078349210 CMS
Janssen Biotech, Inc. $5.90 10/02/2024 Food and Beverage Undisputed 01/23/2026 1078348910 CMS
Janssen Biotech, Inc. $9.53 10/28/2024 Food and Beverage Undisputed 01/23/2026 1078349413 CMS
Janssen Biotech, Inc. $28.11 11/06/2024 Food and Beverage Undisputed 01/23/2026 1078348942 CMS
Janssen Biotech, Inc. $11.48 11/14/2024 Food and Beverage Undisputed 01/23/2026 1078349459 CMS
Janssen Biotech, Inc. $22.53 12/02/2024 Food and Beverage Undisputed 01/23/2026 1078349152 CMS
Janssen Biotech, Inc. $4.50 12/02/2024 Food and Beverage Undisputed 01/23/2026 1078349268 CMS
Lilly USA, LLC $27.21 02/20/2024 Food and Beverage Undisputed 01/23/2026 1135454825 CMS
Lilly USA, LLC $21.24 10/07/2024 Food and Beverage Undisputed 01/23/2026 1135508506 CMS
Madrigal Pharmaceuticals $44.84 09/30/2024 Food and Beverage Undisputed 01/23/2026 1144186185 CMS
Madrigal Pharmaceuticals $39.02 11/19/2024 Food and Beverage Undisputed 01/23/2026 1144186187 CMS
PFIZER INC. $21.25 04/01/2024 Food and Beverage Undisputed 01/23/2026 1131289312 CMS
PFIZER INC. $28.43 05/20/2024 Food and Beverage Undisputed 01/23/2026 1131464252 CMS
PFIZER INC. $26.20 06/28/2024 Food and Beverage Undisputed 01/23/2026 1131670643 CMS
PFIZER INC. $22.65 08/10/2024 Food and Beverage Undisputed 01/23/2026 1131866920 CMS
PFIZER INC. $19.38 11/04/2024 Food and Beverage Undisputed 01/23/2026 1132123595 CMS
PFIZER INC. $29.03 12/16/2024 Food and Beverage Undisputed 01/23/2026 1131419908 CMS
Phathom Pharmaceuticals, Inc. $17.96 04/16/2024 Food and Beverage Undisputed 01/23/2026 1151142347 CMS
Phathom Pharmaceuticals, Inc. $22.13 09/03/2024 Food and Beverage Undisputed 01/23/2026 1151142349 CMS
Regeneron Healthcare Solutions, Inc. $14.05 10/21/2024 Food and Beverage Undisputed 01/23/2026 1114260292 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.45 01/22/2024 Food and Beverage Undisputed 01/23/2026 1153406842 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.36 06/04/2024 Food and Beverage Undisputed 01/23/2026 1153682567 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $18.29 06/25/2024 Food and Beverage Undisputed 01/23/2026 1153428347 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.54 01/22/2024 Food and Beverage Undisputed 01/23/2026 1137701670 CMS
Takeda Pharmaceuticals U.S.A., Inc. $4.20 01/29/2024 Food and Beverage Undisputed 01/23/2026 1137701672 CMS
Takeda Pharmaceuticals U.S.A., Inc. $9.91 01/29/2024 Food and Beverage Undisputed 01/23/2026 1137701674 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.97 02/26/2024 Food and Beverage Undisputed 01/23/2026 1137701676 CMS
Takeda Pharmaceuticals U.S.A., Inc. $6.90 05/13/2024 Food and Beverage Undisputed 01/23/2026 1137701678 CMS
Takeda Pharmaceuticals U.S.A., Inc. $5.99 05/13/2024 Food and Beverage Undisputed 01/23/2026 1137701680 CMS
Takeda Pharmaceuticals U.S.A., Inc. $2.18 08/19/2024 Food and Beverage Undisputed 01/23/2026 1137701682 CMS
Takeda Pharmaceuticals U.S.A., Inc. $6.27 08/19/2024 Food and Beverage Undisputed 01/23/2026 1137701684 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.63 08/21/2024 Food and Beverage Undisputed 01/23/2026 1137701686 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.31 09/16/2024 Food and Beverage Undisputed 01/23/2026 1137701688 CMS
Takeda Pharmaceuticals U.S.A., Inc. $3.70 10/29/2024 Food and Beverage Undisputed 01/23/2026 1137701690 CMS
Takeda Pharmaceuticals U.S.A., Inc. $12.26 10/31/2024 Food and Beverage Undisputed 01/23/2026 1137701692 CMS
VIVUS LLC $19.30 02/05/2024 Food and Beverage Undisputed 01/23/2026 1129418855 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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