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

OI CHUNG

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI
1104085893
CMS profile
10440785
Location
MONTEREY PARK, CA

General Payments · PY2021–2024

$4,807.48

  • Reported across 138 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,250.73

33 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 $1,250.73 33

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Gilead Sciences, Inc. $616.70 14
Phathom Pharmaceuticals, Inc. $234.29 7
Madrigal Pharmaceuticals $187.46 3
ABBVIE INC. $105.08 5
Ardelyx, Inc. $85.11 3
AIMMUNE THERAPEUTICS, INC. $22.09 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $975.89 31
PY2022 $2,001.93 49
PY2023 $578.93 25
PY2024 $1,250.73 33

Payment records · PY2024 (33)

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

Program year 2024 202120222023 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. $23.60 04/22/2024 Food and Beverage Undisputed 01/23/2026 1106918923 CMS
ABBVIE INC. $19.22 05/16/2024 Food and Beverage Undisputed 01/23/2026 1106918925 CMS
ABBVIE INC. $20.44 08/22/2024 Food and Beverage Undisputed 01/23/2026 1106918927 CMS
ABBVIE INC. $24.81 10/10/2024 Food and Beverage Undisputed 01/23/2026 1106918929 CMS
ABBVIE INC. $17.01 11/11/2024 Food and Beverage Undisputed 01/23/2026 1106918931 CMS
AIMMUNE THERAPEUTICS, INC. $22.09 10/28/2024 Food and Beverage Undisputed 01/23/2026 1146989507 CMS
Ardelyx, Inc. $32.50 09/27/2024 Food and Beverage Undisputed 01/23/2026 1146721948 CMS
Ardelyx, Inc. $26.32 11/15/2024 Food and Beverage Undisputed 01/23/2026 1146721950 CMS
Ardelyx, Inc. $26.29 12/13/2024 Food and Beverage Undisputed 01/23/2026 1146721952 CMS
Gilead Sciences, Inc. $14.45 01/20/2024 Food and Beverage Undisputed 01/23/2026 1133723907 CMS
Gilead Sciences, Inc. $9.08 02/09/2024 Food and Beverage Undisputed 01/23/2026 1133723909 CMS
Gilead Sciences, Inc. $27.29 02/09/2024 Food and Beverage Undisputed 01/23/2026 1133723911 CMS
Gilead Sciences, Inc. $4.81 03/13/2024 Food and Beverage Undisputed 01/23/2026 1133723913 CMS
Gilead Sciences, Inc. $125.00 03/13/2024 Food and Beverage Undisputed 01/23/2026 1133723915 CMS
Gilead Sciences, Inc. $149.97 04/30/2024 Food and Beverage Undisputed 01/23/2026 1133723917 CMS
Gilead Sciences, Inc. $22.56 05/14/2024 Food and Beverage Undisputed 01/23/2026 1133723919 CMS
Gilead Sciences, Inc. $24.07 06/24/2024 Food and Beverage Undisputed 01/23/2026 1133723921 CMS
Gilead Sciences, Inc. $4.84 09/10/2024 Food and Beverage Undisputed 01/23/2026 1133723923 CMS
Gilead Sciences, Inc. $27.86 10/17/2024 Food and Beverage Undisputed 01/23/2026 1133723925 CMS
Gilead Sciences, Inc. $22.46 11/07/2024 Food and Beverage Undisputed 01/23/2026 1133723927 CMS
Gilead Sciences, Inc. $34.75 11/21/2024 Food and Beverage Undisputed 01/23/2026 1133723929 CMS
Gilead Sciences, Inc. $125.00 12/11/2024 Food and Beverage Undisputed 01/23/2026 1133723931 CMS
Gilead Sciences, Inc. $24.56 12/19/2024 Food and Beverage Undisputed 01/23/2026 1133723933 CMS
Madrigal Pharmaceuticals $30.79 10/25/2024 Food and Beverage Undisputed 01/23/2026 1144189050 CMS
Madrigal Pharmaceuticals $31.75 11/05/2024 Food and Beverage Undisputed 01/23/2026 1144189052 CMS
Madrigal Pharmaceuticals $124.92 12/05/2024 Food and Beverage Undisputed 01/23/2026 1144189054 CMS
Phathom Pharmaceuticals, Inc. $17.17 04/01/2024 Food and Beverage Undisputed 01/23/2026 1151155757 CMS
Phathom Pharmaceuticals, Inc. $16.65 04/15/2024 Food and Beverage Undisputed 01/23/2026 1151155759 CMS
Phathom Pharmaceuticals, Inc. $17.85 05/20/2024 Food and Beverage Undisputed 01/23/2026 1151155761 CMS
Phathom Pharmaceuticals, Inc. $29.24 08/19/2024 Food and Beverage Undisputed 01/23/2026 1151155763 CMS
Phathom Pharmaceuticals, Inc. $125.00 10/08/2024 Food and Beverage Undisputed 01/23/2026 1151155765 CMS
Phathom Pharmaceuticals, Inc. $20.02 11/18/2024 Food and Beverage Undisputed 01/23/2026 1151155767 CMS
Phathom Pharmaceuticals, Inc. $8.36 12/12/2024 Food and Beverage Undisputed 01/23/2026 1151155769 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
2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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