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

TONY M CHANG

Allopathic & Osteopathic Physicians Surgery

NPI
1164445896
CMS profile
681276
Location
LODI, CA

General Payments · PY2019–2024

$12,908.66

  • Reported across 57 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$3,691.59

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
Travel and Lodging $2,664.71 14
Food and Beverage $1,026.88 19

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
DAVOL INC. $2,172.99 18
BECTON, DICKINSON AND COMPANY $1,124.84 6
INTUITIVE SURGICAL, INC. $178.73 2
BOSTON SCIENTIFIC CORPORATION $108.80 1
BIOTISSUE HOLDINGS INC. $77.63 5
TACTILE SYSTEMS TECHNOLOGY INC $28.60 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $148.85 2
PY2022 $826.95 8
PY2023 $8,241.27 14
PY2024 $3,691.59 33

Payment records · PY2024 (33)

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

Program year 2024 201920222023 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
Becton, Dickinson and Company $473.65 05/29/2024 Travel and Lodging Undisputed 01/23/2026 1127624429 CMS
Becton, Dickinson and Company $99.69 07/18/2024 Food and Beverage Undisputed 01/23/2026 1127624437 CMS
Becton, Dickinson and Company $104.34 08/13/2024 Food and Beverage Undisputed 01/23/2026 1127624440 CMS
Becton, Dickinson and Company $214.52 08/13/2024 Travel and Lodging Undisputed 01/23/2026 1127624444 CMS
Becton, Dickinson and Company $147.39 08/15/2024 Travel and Lodging Undisputed 01/23/2026 1127624448 CMS
Becton, Dickinson and Company $85.25 08/16/2024 Travel and Lodging Undisputed 01/23/2026 1127624451 CMS
BIOTISSUE HOLDINGS INC. $13.33 08/19/2024 Food and Beverage Undisputed 01/23/2026 1148770158 CMS
BIOTISSUE HOLDINGS INC. $13.75 08/26/2024 Food and Beverage Undisputed 01/23/2026 1148784275 CMS
BIOTISSUE HOLDINGS INC. $18.40 08/29/2024 Food and Beverage Undisputed 01/23/2026 1148784183 CMS
BIOTISSUE HOLDINGS INC. $18.40 11/11/2024 Food and Beverage Undisputed 01/23/2026 1148759717 CMS
BIOTISSUE HOLDINGS INC. $13.75 11/11/2024 Food and Beverage Undisputed 01/23/2026 1148763748 CMS
Boston Scientific Corporation $108.80 05/08/2024 Food and Beverage Undisputed 01/23/2026 1092735944 CMS
Davol Inc. $222.49 01/17/2024 Travel and Lodging Undisputed 01/23/2026 1127659947 CMS
Davol Inc. $27.68 03/19/2024 Food and Beverage Undisputed 01/23/2026 1127659951 CMS
Davol Inc. $671.60 05/15/2024 Travel and Lodging Undisputed 01/23/2026 1127659965 CMS
Davol Inc. $49.57 07/26/2024 Food and Beverage Undisputed 01/23/2026 1127659979 CMS
Davol Inc. $48.34 07/26/2024 Food and Beverage Undisputed 01/23/2026 1127659981 CMS
Davol Inc. $260.82 07/28/2024 Travel and Lodging Undisputed 01/23/2026 1127659985 CMS
Davol Inc. $109.48 07/29/2024 Food and Beverage Undisputed 01/23/2026 1127659983 CMS
Davol Inc. $54.02 07/31/2024 Travel and Lodging Undisputed 01/23/2026 1127659987 CMS
Davol Inc. $96.77 08/01/2024 Travel and Lodging Undisputed 01/23/2026 1127659989 CMS
Davol Inc. $175.33 08/02/2024 Travel and Lodging Undisputed 01/23/2026 1127659991 CMS
Davol Inc. $69.04 08/18/2024 Food and Beverage Undisputed 01/23/2026 1127659971 CMS
Davol Inc. $161.87 08/18/2024 Travel and Lodging Undisputed 01/23/2026 1127659975 CMS
Davol Inc. $15.09 08/19/2024 Food and Beverage Undisputed 01/23/2026 1127659969 CMS
Davol Inc. $25.00 08/19/2024 Travel and Lodging Undisputed 01/23/2026 1127659977 CMS
Davol Inc. $38.00 10/17/2024 Travel and Lodging Undisputed 01/23/2026 1127659997 CMS
Davol Inc. $71.02 10/17/2024 Food and Beverage Undisputed 01/23/2026 1127659999 CMS
Davol Inc. $38.87 10/17/2024 Food and Beverage Undisputed 01/23/2026 1127660001 CMS
Davol Inc. $38.00 10/17/2024 Travel and Lodging Undisputed 01/23/2026 1127660005 CMS
INTUITIVE SURGICAL, INC. $97.40 03/26/2024 Food and Beverage Undisputed 01/23/2026 1137218231 CMS
INTUITIVE SURGICAL, INC. $81.33 11/26/2024 Food and Beverage Undisputed 01/23/2026 1137194969 CMS
Tactile Systems Technology Inc $28.60 11/08/2024 Food and Beverage Undisputed 01/23/2026 1082375419 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, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2019 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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