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

ANNA R CHANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1568402931
CMS profile
115643
Location
CONCORD, CA

General Payments · PY2018–2024

$9,753.47

  • Reported across 135 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$446.61

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

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $446.61 16

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $3,169.18 23
PY2019 $3,294.64 49
PY2020 $2,349.97 29
PY2021 $27.08 2
PY2022 $214.83 6
PY2023 $251.16 10
PY2024 $446.61 16

Payment records · PY2024 (16)

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
Abbott Laboratories $17.76 07/26/2024 Food and Beverage Undisputed 01/23/2026 1125126931 CMS
Amgen Inc. $19.80 03/28/2024 Food and Beverage Undisputed 01/23/2026 1111545819 CMS
Averitas Pharma Inc. $34.15 08/06/2024 Food and Beverage Undisputed 01/23/2026 1133420929 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.83 03/21/2024 Food and Beverage Undisputed 01/23/2026 1086196430 CMS
Bayer Healthcare Pharmaceuticals Inc. $25.21 06/20/2024 Food and Beverage Undisputed 01/23/2026 1086203601 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.39 04/11/2024 Food and Beverage Undisputed 01/23/2026 1118060283 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $124.24 04/17/2024 Food and Beverage Undisputed 01/23/2026 1118060285 CMS
Dexcom, Inc. $27.47 05/16/2024 Food and Beverage Undisputed 01/23/2026 1153281127 CMS
Lilly USA, LLC $17.20 02/07/2024 Food and Beverage Undisputed 01/23/2026 1136044906 CMS
Lilly USA, LLC $18.77 10/14/2024 Food and Beverage Undisputed 01/23/2026 1135999673 CMS
Novo Nordisk Inc $20.25 11/06/2024 Food and Beverage Undisputed 01/23/2026 1097087959 CMS
Novo Nordisk Inc $22.08 12/19/2024 Food and Beverage Undisputed 01/23/2026 1096718244 CMS
Radius Health, Inc. $18.42 01/12/2024 Food and Beverage Undisputed 01/23/2026 1089935493 CMS
Radius Health, Inc. $22.16 03/05/2024 Food and Beverage Undisputed 01/23/2026 1089935499 CMS
Tandem Diabetes Care, Inc. $20.04 05/23/2024 Food and Beverage Undisputed 01/23/2026 1138748943 CMS
Tandem Diabetes Care, Inc. $16.84 07/24/2024 Food and Beverage Undisputed 01/23/2026 1138748947 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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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.