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

TOM CHIANG

Allopathic & Osteopathic Physicians Internal Medicine Infectious Disease

NPI
1346345758
CMS profile
333554
Location
MONROVIA, CA

General Payments · PY2018–2024

$33,389.88

  • Reported across 170 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$6,071.25

18 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
ABBVIE INC. $6,011.38 16
Shionogi Inc $59.87 2

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $422.49 17
PY2019 $2,069.86 30
PY2020 $2,798.30 21
PY2021 $4,006.71 23
PY2022 $12,945.29 41
PY2023 $5,075.98 20
PY2024 $6,071.25 18

Payment records · PY2024 (18)

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. $22.14 02/22/2024 Food and Beverage Undisputed 01/23/2026 1103458980 CMS
ABBVIE INC. $124.99 04/16/2024 Food and Beverage Undisputed 01/23/2026 1103458982 CMS
ABBVIE INC. $53.60 04/16/2024 Travel and Lodging Undisputed 01/23/2026 1104180448 CMS
ABBVIE INC. $15.00 04/16/2024 Travel and Lodging Undisputed 01/23/2026 1104180450 CMS
ABBVIE INC. $3.00 04/16/2024 Travel and Lodging Undisputed 01/23/2026 1104180452 CMS
ABBVIE INC. $16.88 04/29/2024 Food and Beverage Undisputed 01/23/2026 1103458984 CMS
ABBVIE INC. $15.99 04/29/2024 Food and Beverage Undisputed 01/23/2026 1103458986 CMS
ABBVIE INC. $2,750.00 05/07/2024 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 1103145015 CMS
ABBVIE INC. $125.06 09/11/2024 Food and Beverage Undisputed 01/23/2026 1103458988 CMS
ABBVIE INC. $18.00 09/11/2024 Travel and Lodging Undisputed 01/23/2026 1104180454 CMS
ABBVIE INC. $5.00 09/11/2024 Travel and Lodging Undisputed 01/23/2026 1104180456 CMS
ABBVIE INC. $46.90 09/11/2024 Travel and Lodging Undisputed 01/23/2026 1104180458 CMS
ABBVIE INC. $35.45 09/27/2024 Food and Beverage Undisputed 01/23/2026 1103458990 CMS
ABBVIE INC. $2,750.00 10/08/2024 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 1103145017 CMS
ABBVIE INC. $24.01 11/16/2024 Food and Beverage Undisputed 01/23/2026 1103458992 CMS
ABBVIE INC. $5.36 12/04/2024 Food and Beverage Undisputed 01/23/2026 1103458994 CMS
Shionogi Inc $27.42 01/24/2024 Food and Beverage Undisputed 01/23/2026 1154334650 CMS
Shionogi Inc $32.45 08/22/2024 Food and Beverage Undisputed 01/23/2026 1154334754 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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