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

CHIH-SHENG JASON CHIANG

Allopathic & Osteopathic Physicians Radiology Vascular & Interventional Radiology

NPI
1295198638
CMS profile
9767576
Location
LOS ANGELES, CA

General Payments · PY2021–2024

$40,107.21

  • Reported across 106 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$13,801.33

30 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
Travel and Lodging $12,589.50 15
Food and Beverage $1,211.83 15

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Siemens Medical Solutions USA, Inc. $11,704.79 23
GE HEALTHCARE $1,581.50 1
Penumbra, Inc. $272.00 2
BOSTON SCIENTIFIC CORPORATION $218.74 3
Sirtex Medical Inc $24.30 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2021 $149.99 1
PY2022 $11,290.31 33
PY2023 $14,865.58 42
PY2024 $13,801.33 30

Payment records · PY2024 (30)

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
Boston Scientific Corporation $40.87 04/11/2024 Food and Beverage Undisputed 01/23/2026 1092698201 CMS
Boston Scientific Corporation $12.50 11/11/2024 Food and Beverage Undisputed 01/23/2026 1092698199 CMS
Boston Scientific Corporation $165.37 11/21/2024 Food and Beverage Undisputed 01/23/2026 1092698203 CMS
GE HEALTHCARE $1,581.50 12/03/2024 Travel and Lodging Undisputed 01/23/2026 1144680573 CMS
Penumbra, Inc. $141.00 03/01/2024 Food and Beverage Undisputed 01/23/2026 1076208794 CMS
Penumbra, Inc. $131.00 03/26/2024 Food and Beverage Undisputed 01/23/2026 1076208796 CMS
Siemens Medical Solutions USA, Inc. $9,382.10 04/23/2024 Travel and Lodging Undisputed 01/23/2026 1093687622 CMS
Siemens Medical Solutions USA, Inc. $65.00 04/23/2024 Travel and Lodging Undisputed 01/23/2026 1093687624 CMS
Siemens Medical Solutions USA, Inc. $145.21 05/08/2024 Travel and Lodging Undisputed 01/23/2026 1093687602 CMS
Siemens Medical Solutions USA, Inc. $144.91 05/16/2024 Travel and Lodging Undisputed 01/23/2026 1093687620 CMS
Siemens Medical Solutions USA, Inc. $188.42 05/20/2024 Travel and Lodging Undisputed 01/23/2026 1093687582 CMS
Siemens Medical Solutions USA, Inc. $61.54 05/20/2024 Food and Beverage Undisputed 01/23/2026 1093687598 CMS
Siemens Medical Solutions USA, Inc. $25.86 05/20/2024 Travel and Lodging Undisputed 01/23/2026 1093687610 CMS
Siemens Medical Solutions USA, Inc. $188.41 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1093687584 CMS
Siemens Medical Solutions USA, Inc. $141.31 05/21/2024 Food and Beverage Undisputed 01/23/2026 1093687596 CMS
Siemens Medical Solutions USA, Inc. $61.17 05/21/2024 Food and Beverage Undisputed 01/23/2026 1093687606 CMS
Siemens Medical Solutions USA, Inc. $43.73 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1093687608 CMS
Siemens Medical Solutions USA, Inc. $40.61 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1093687612 CMS
Siemens Medical Solutions USA, Inc. $188.41 05/22/2024 Travel and Lodging Undisputed 01/23/2026 1093687586 CMS
Siemens Medical Solutions USA, Inc. $188.60 05/22/2024 Food and Beverage Undisputed 01/23/2026 1093687592 CMS
Siemens Medical Solutions USA, Inc. $47.76 05/22/2024 Travel and Lodging Undisputed 01/23/2026 1093687594 CMS
Siemens Medical Solutions USA, Inc. $150.21 05/22/2024 Travel and Lodging Undisputed 01/23/2026 1093687600 CMS
Siemens Medical Solutions USA, Inc. $59.85 05/22/2024 Food and Beverage Undisputed 01/23/2026 1093687604 CMS
Siemens Medical Solutions USA, Inc. $40.54 05/22/2024 Travel and Lodging Undisputed 01/23/2026 1093687614 CMS
Siemens Medical Solutions USA, Inc. $139.67 05/23/2024 Food and Beverage Undisputed 01/23/2026 1093687588 CMS
Siemens Medical Solutions USA, Inc. $16.98 05/23/2024 Food and Beverage Undisputed 01/23/2026 1093687590 CMS
Siemens Medical Solutions USA, Inc. $356.83 05/23/2024 Travel and Lodging Undisputed 01/23/2026 1093687616 CMS
Siemens Medical Solutions USA, Inc. $14.63 05/23/2024 Food and Beverage Undisputed 01/23/2026 1093687618 CMS
Siemens Medical Solutions USA, Inc. $13.04 05/23/2024 Food and Beverage Undisputed 01/23/2026 1093687626 CMS
Sirtex Medical Inc $24.30 01/10/2024 Food and Beverage Undisputed 01/23/2026 1142708166 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

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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.