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

STEPHEN G CHUN

Allopathic & Osteopathic Physicians Radiology Radiation Oncology

NPI
1659682656
CMS profile
552830
Location
HOUSTON, TX

General Payments · PY2019–2024

$187,807.68

  • Reported across 191 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$69,426.45

67 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

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $69,162.87 62
AstraZeneca UK Limited $157.79 3
Novocure Inc. $105.79 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $4,614.05 6
PY2020 $8,816.56 17
PY2021 $4,355.94 4
PY2022 $42,546.93 43
PY2023 $58,047.75 54
PY2024 $69,426.45 67

Payment records · PY2024 (67)

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

Program year 2024 20192020202120222023 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
AstraZeneca Pharmaceuticals LP $6,050.00 01/04/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104253315 CMS
AstraZeneca Pharmaceuticals LP $250.00 02/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1105816473 CMS
AstraZeneca Pharmaceuticals LP $144.45 02/21/2024 Travel and Lodging Undisputed 01/23/2026 1104229807 CMS
AstraZeneca Pharmaceuticals LP $125.00 02/21/2024 Food and Beverage Undisputed 01/23/2026 1104257123 CMS
AstraZeneca Pharmaceuticals LP $396.52 02/21/2024 Travel and Lodging Undisputed 01/23/2026 1104531774 CMS
AstraZeneca Pharmaceuticals LP $48.83 02/21/2024 Food and Beverage Undisputed 01/23/2026 1105460722 CMS
AstraZeneca Pharmaceuticals LP $6,050.00 02/23/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1105268626 CMS
AstraZeneca Pharmaceuticals LP $113.34 02/29/2024 Food and Beverage Undisputed 01/23/2026 1104354998 CMS
AstraZeneca Pharmaceuticals LP $12.06 02/29/2024 Travel and Lodging Undisputed 01/23/2026 1105461492 CMS
AstraZeneca Pharmaceuticals LP $3,000.00 03/04/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104385255 CMS
AstraZeneca Pharmaceuticals LP $26.71 03/20/2024 Food and Beverage Undisputed 01/23/2026 1104723701 CMS
AstraZeneca Pharmaceuticals LP $52.26 03/20/2024 Travel and Lodging Undisputed 01/23/2026 1104747565 CMS
AstraZeneca Pharmaceuticals LP $300.00 03/26/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104367279 CMS
AstraZeneca Pharmaceuticals LP $3,800.00 04/10/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1105802285 CMS
AstraZeneca Pharmaceuticals LP $259.16 04/17/2024 Travel and Lodging Undisputed 01/23/2026 1104537698 CMS
AstraZeneca Pharmaceuticals LP $112.37 04/17/2024 Food and Beverage Undisputed 01/23/2026 1104607778 CMS
AstraZeneca Pharmaceuticals LP $329.70 04/17/2024 Travel and Lodging Undisputed 01/23/2026 1104641191 CMS
AstraZeneca Pharmaceuticals LP $105.72 04/17/2024 Food and Beverage Undisputed 01/23/2026 1105467389 CMS
AstraZeneca Pharmaceuticals LP $353.69 04/17/2024 Travel and Lodging Undisputed 01/23/2026 1105890448 CMS
AstraZeneca Pharmaceuticals LP $6,050.00 04/22/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104246957 CMS
AstraZeneca Pharmaceuticals LP $135.00 06/03/2024 Food and Beverage Undisputed 01/23/2026 1104658419 CMS
AstraZeneca Pharmaceuticals LP $372.13 06/03/2024 Travel and Lodging Undisputed 01/23/2026 1105485147 CMS
AstraZeneca Pharmaceuticals LP $593.37 06/03/2024 Travel and Lodging Undisputed 01/23/2026 1105511283 CMS
AstraZeneca Pharmaceuticals LP $372.13 06/04/2024 Travel and Lodging Undisputed 01/23/2026 1104306418 CMS
AstraZeneca Pharmaceuticals LP $70.99 06/04/2024 Food and Beverage Undisputed 01/23/2026 1105617905 CMS
AstraZeneca Pharmaceuticals LP $1,500.00 07/05/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104358393 CMS
AstraZeneca Pharmaceuticals LP $1,510.00 07/11/2024 Consulting Fee Undisputed 01/23/2026 1105563560 CMS
AstraZeneca Pharmaceuticals LP $194.73 10/15/2024 Travel and Lodging Undisputed 01/23/2026 1104202701 CMS
AstraZeneca Pharmaceuticals LP $44.64 10/15/2024 Food and Beverage Undisputed 01/23/2026 1104631386 CMS
AstraZeneca Pharmaceuticals LP $101.48 10/15/2024 Food and Beverage Undisputed 01/23/2026 1104689224 CMS
AstraZeneca Pharmaceuticals LP $138.06 10/15/2024 Travel and Lodging Undisputed 01/23/2026 1105444934 CMS
AstraZeneca Pharmaceuticals LP $265.32 10/15/2024 Travel and Lodging Undisputed 01/23/2026 1105687537 CMS
AstraZeneca Pharmaceuticals LP $7,280.00 10/24/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104225111 CMS
AstraZeneca Pharmaceuticals LP $3,020.00 10/29/2024 Consulting Fee Undisputed 01/23/2026 1105256892 CMS
AstraZeneca Pharmaceuticals LP $216.35 11/01/2024 Travel and Lodging Undisputed 01/23/2026 1105724055 CMS
AstraZeneca Pharmaceuticals LP $92.03 11/01/2024 Food and Beverage Undisputed 01/23/2026 1105732863 CMS
AstraZeneca Pharmaceuticals LP $412.14 11/06/2024 Travel and Lodging Undisputed 01/23/2026 1104283051 CMS
AstraZeneca Pharmaceuticals LP $7,550.00 11/06/2024 Consulting Fee Undisputed 01/23/2026 1105855424 CMS
AstraZeneca Pharmaceuticals LP $14.07 11/11/2024 Food and Beverage Undisputed 01/23/2026 1104502712 CMS
AstraZeneca Pharmaceuticals LP $32.85 11/11/2024 Food and Beverage Undisputed 01/23/2026 1105621175 CMS
AstraZeneca Pharmaceuticals LP $240.97 11/11/2024 Travel and Lodging Undisputed 01/23/2026 1105803091 CMS
AstraZeneca Pharmaceuticals LP $7,280.00 11/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104366233 CMS
AstraZeneca Pharmaceuticals LP $118.75 11/20/2024 Food and Beverage Undisputed 01/23/2026 1104438127 CMS
AstraZeneca Pharmaceuticals LP $568.70 11/21/2024 Travel and Lodging Undisputed 01/23/2026 1105280141 CMS
AstraZeneca Pharmaceuticals LP $125.00 11/21/2024 Food and Beverage Undisputed 01/23/2026 1105700636 CMS
AstraZeneca Pharmaceuticals LP $116.83 12/05/2024 Food and Beverage Undisputed 01/23/2026 1105429502 CMS
AstraZeneca Pharmaceuticals LP $56.90 12/06/2024 Food and Beverage Undisputed 01/23/2026 1104276161 CMS
AstraZeneca Pharmaceuticals LP $122.00 12/06/2024 Travel and Lodging Undisputed 01/23/2026 1104289736 CMS
AstraZeneca Pharmaceuticals LP $68.47 12/06/2024 Food and Beverage Undisputed 01/23/2026 1104372831 CMS
AstraZeneca Pharmaceuticals LP $281.51 12/06/2024 Travel and Lodging Undisputed 01/23/2026 1104667515 CMS
AstraZeneca Pharmaceuticals LP $70.24 12/06/2024 Travel and Lodging Undisputed 01/23/2026 1104774984 CMS
AstraZeneca Pharmaceuticals LP $63.89 12/06/2024 Food and Beverage Undisputed 01/23/2026 1105881690 CMS
AstraZeneca Pharmaceuticals LP $10.76 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1104266771 CMS
AstraZeneca Pharmaceuticals LP $250.00 12/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1104275353 CMS
AstraZeneca Pharmaceuticals LP $100.40 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1104381559 CMS
AstraZeneca Pharmaceuticals LP $101.60 12/11/2024 Food and Beverage Undisputed 01/23/2026 1104530416 CMS
AstraZeneca Pharmaceuticals LP $44.60 12/11/2024 Food and Beverage Undisputed 01/23/2026 1104664037 CMS
AstraZeneca Pharmaceuticals LP $77.75 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1104726925 CMS
AstraZeneca Pharmaceuticals LP $117.73 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1105485917 CMS
AstraZeneca Pharmaceuticals LP $439.40 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1105549585 CMS
AstraZeneca Pharmaceuticals LP $7,280.00 12/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1105601593 CMS
AstraZeneca Pharmaceuticals LP $132.27 12/11/2024 Travel and Lodging Undisputed 01/23/2026 1105816701 CMS
AstraZeneca UK Limited $47.79 09/06/2024 Food and Beverage Undisputed 01/23/2026 1093980350 CMS
AstraZeneca UK Limited $55.00 09/06/2024 Food and Beverage Undisputed 01/23/2026 1093982531 CMS
AstraZeneca UK Limited $55.00 09/06/2024 Food and Beverage Undisputed 01/23/2026 1094031321 CMS
Novocure Inc. $53.66 06/01/2024 Food and Beverage Undisputed 01/23/2026 1123338982 CMS
Novocure Inc. $52.13 08/29/2024 Food and Beverage Undisputed 01/23/2026 1123338984 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
2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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