Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

JAMES G CHUN

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI
1134143506
CMS profile
50877
Location
SAN FRANCISCO, CA

General Payments · PY2019–2025

$8,804.03

  • Reported across 108 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$298.80

16 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $298.80 16

By paying entity

PY2025 · sorted by reported total

Paying entityAmountRecords
BAXTER HEALTHCARE $175.10 10
PFIZER INC. $23.90 1
Esperion Therapeutics, Inc. $23.72 1
Abbott Laboratories $23.44 1
Octapharma USA, Inc. $18.19 1
CORDIS US CORP. $17.46 1
BOSTON SCIENTIFIC CORPORATION $16.99 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $5,599.81 37
PY2020 $718.91 14
PY2021 $1,107.77 20
PY2022 $477.61 9
PY2023 $181.87 6
PY2024 $419.26 6
PY2025 $298.80 16

Payment records · PY2025 (16)

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

Program year 2025 201920202021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Abbott Laboratories $23.44 07/08/2025 Food and Beverage Undisputed 06/30/2026 1241057072 CMS
Baxter Healthcare $29.59 02/04/2025 Food and Beverage Undisputed 06/30/2026 1181533670 CMS
Baxter Healthcare $21.56 03/28/2025 Food and Beverage Undisputed 06/30/2026 1181533672 CMS
Baxter Healthcare $14.47 05/23/2025 Food and Beverage Undisputed 06/30/2026 1181533674 CMS
Baxter Healthcare $9.93 06/28/2025 Food and Beverage Undisputed 06/30/2026 1181533676 CMS
Baxter Healthcare $21.28 07/30/2025 Food and Beverage Undisputed 06/30/2026 1181533680 CMS
Baxter Healthcare $21.48 08/11/2025 Food and Beverage Undisputed 06/30/2026 1181533682 CMS
Baxter Healthcare $13.08 09/08/2025 Food and Beverage Undisputed 06/30/2026 1181533684 CMS
Baxter Healthcare $11.52 10/15/2025 Food and Beverage Undisputed 06/30/2026 1181533678 CMS
Baxter Healthcare $22.97 10/23/2025 Food and Beverage Undisputed 06/30/2026 1181533686 CMS
Baxter Healthcare $9.22 11/20/2025 Food and Beverage Undisputed 06/30/2026 1181533688 CMS
Boston Scientific Corporation $16.99 11/26/2025 Food and Beverage Undisputed 06/30/2026 1181172070 CMS
CORDIS US CORP. $17.46 11/06/2025 Food and Beverage Undisputed 06/30/2026 1237401594 CMS
Esperion Therapeutics, Inc. $23.72 01/28/2025 Food and Beverage Undisputed 06/30/2026 1243955282 CMS
Octapharma USA, Inc. $18.19 08/19/2025 Food and Beverage Undisputed 06/30/2026 1245076215 CMS
PFIZER INC. $23.90 05/21/2025 Food and Beverage Undisputed 06/30/2026 1231297632 CMS

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
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

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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.