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

PATRICIA J CHANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1508886508
CMS profile
158753
Location
CENTURY CITY, CA

General Payments · PY2018–2024

$10,987.30

  • Reported across 589 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$619.96

28 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 $619.96 28

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $2,254.04 132
PY2019 $2,155.63 126
PY2020 $1,629.69 89
PY2021 $1,693.96 98
PY2022 $1,518.40 72
PY2023 $1,115.62 44
PY2024 $619.96 28

Payment records · PY2024 (28)

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
Amgen Inc. $23.83 03/21/2024 Food and Beverage Undisputed 01/23/2026 1115491216 CMS
Amgen Inc. $16.83 08/15/2024 Food and Beverage Undisputed 01/23/2026 1115491210 CMS
Ardelyx, Inc. $27.89 08/05/2024 Food and Beverage Undisputed 01/23/2026 1146674666 CMS
AstraZeneca Pharmaceuticals LP $20.74 09/13/2024 Food and Beverage Undisputed 01/23/2026 1105571353 CMS
AstraZeneca Pharmaceuticals LP $25.45 10/09/2024 Food and Beverage Undisputed 01/23/2026 1104723549 CMS
Esperion Therapeutics, Inc. $26.76 08/07/2024 Food and Beverage Undisputed 01/23/2026 1129430680 CMS
Exact Sciences Corporation $29.58 03/19/2024 Food and Beverage Undisputed 01/23/2026 1114612337 CMS
IBSA Pharma Inc. $23.82 02/13/2024 Food and Beverage Undisputed 01/23/2026 1142983982 CMS
IRONWOOD PHARMACEUTICALS, INC $14.07 01/03/2024 Food and Beverage Undisputed 01/23/2026 1153721309 CMS
IRONWOOD PHARMACEUTICALS, INC $17.80 01/23/2024 Food and Beverage Undisputed 01/23/2026 1153712484 CMS
IRONWOOD PHARMACEUTICALS, INC $20.17 03/21/2024 Food and Beverage Undisputed 01/23/2026 1153721313 CMS
Lilly USA, LLC $26.55 02/27/2024 Food and Beverage Undisputed 01/23/2026 1135279361 CMS
Novartis Pharmaceuticals Corporation $31.80 02/27/2024 Food and Beverage Undisputed 01/23/2026 1086691207 CMS
Novartis Pharmaceuticals Corporation $32.16 04/18/2024 Food and Beverage Undisputed 01/23/2026 1086691213 CMS
Novartis Pharmaceuticals Corporation $23.66 05/13/2024 Food and Beverage Undisputed 01/23/2026 1086691215 CMS
Novartis Pharmaceuticals Corporation $11.67 07/25/2024 Food and Beverage Undisputed 01/23/2026 1086691223 CMS
Novartis Pharmaceuticals Corporation $14.33 08/27/2024 Food and Beverage Undisputed 01/23/2026 1086691231 CMS
Novartis Pharmaceuticals Corporation $12.73 09/17/2024 Food and Beverage Undisputed 01/23/2026 1086691237 CMS
Novartis Pharmaceuticals Corporation $27.95 10/31/2024 Food and Beverage Undisputed 01/23/2026 1086691243 CMS
Novartis Pharmaceuticals Corporation $22.72 11/13/2024 Food and Beverage Undisputed 01/23/2026 1086691245 CMS
Novartis Pharmaceuticals Corporation $21.13 11/18/2024 Food and Beverage Undisputed 01/23/2026 1086691247 CMS
Novartis Pharmaceuticals Corporation $21.46 11/27/2024 Food and Beverage Undisputed 01/23/2026 1086691249 CMS
Novartis Pharmaceuticals Corporation $18.43 12/11/2024 Food and Beverage Undisputed 01/23/2026 1086691251 CMS
Novo Nordisk Inc $18.82 05/15/2024 Food and Beverage Undisputed 01/23/2026 1096598591 CMS
Otsuka America Pharmaceutical, Inc. $28.55 03/19/2024 Food and Beverage Undisputed 01/23/2026 1118873412 CMS
PFIZER INC. $22.75 05/30/2024 Food and Beverage Undisputed 01/23/2026 1130970204 CMS
Radius Health, Inc. $20.48 03/25/2024 Food and Beverage Undisputed 01/23/2026 1089981938 CMS
Regeneron Healthcare Solutions, Inc. $17.83 02/14/2024 Food and Beverage Undisputed 01/23/2026 1114021834 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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