Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

OLIVIA WEI CHANG

Physician Assistants & Advanced Practice Nursing Providers Physician Assistant

NPI
1649844085
CMS profile
11541010
Location
ORANGE, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2023–2025

  • CMS publication 2026-06-30

Latest program year · PY2025

$1,168.74

46 records · 0 disputed

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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) AND records>=2 AND NPI identity (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,168.74 46

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2023 $337.89 15
PY2024 $2,321.64 78
PY2025 $1,168.74 46

Payment records · PY2025 (46)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Program year 2025 20232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amgen Inc. $20.50 11/14/2025 Food and Beverage No dispute reported 06/30/2026 1229421462 CMS
Amgen Inc. $18.77 10/13/2025 Food and Beverage No dispute reported 06/30/2026 1229421503 CMS
Amgen Inc. $14.91 09/25/2025 Food and Beverage No dispute reported 06/30/2026 1229421497 CMS
Amgen Inc. $11.32 08/22/2025 Food and Beverage No dispute reported 06/30/2026 1229421474 CMS
E.R. Squibb & Sons, L.L.C. $20.41 08/20/2025 Food and Beverage No dispute reported 06/30/2026 1184440430 CMS
ABIOMED $138.48 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1174448229 CMS
BridgeBio Pharma, Inc. $18.18 08/07/2025 Food and Beverage No dispute reported 06/30/2026 1250447319 CMS
Amgen Inc. $22.06 07/17/2025 Food and Beverage No dispute reported 06/30/2026 1229421486 CMS
SCPHARMACEUTICALS INC. $23.19 07/10/2025 Food and Beverage No dispute reported 06/30/2026 1228191602 CMS
Regeneron Healthcare Solutions, Inc. $22.76 07/07/2025 Food and Beverage No dispute reported 06/30/2026 1213103278 CMS
PFIZER INC. $28.07 06/18/2025 Food and Beverage No dispute reported 06/30/2026 1229294942 CMS
Amgen Inc. $13.49 06/16/2025 Food and Beverage No dispute reported 06/30/2026 1229421509 CMS
Novartis Pharmaceuticals Corporation $23.64 06/12/2025 Food and Beverage No dispute reported 06/30/2026 1200161363 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $17.85 06/04/2025 Food and Beverage No dispute reported 06/30/2026 1173732412 CMS
E.R. Squibb & Sons, L.L.C. $22.28 06/03/2025 Food and Beverage No dispute reported 06/30/2026 1184440426 CMS
Amgen Inc. $20.70 05/20/2025 Food and Beverage No dispute reported 06/30/2026 1229421480 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $16.29 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1223034204 CMS
Novartis Pharmaceuticals Corporation $29.28 05/15/2025 Food and Beverage No dispute reported 06/30/2026 1200161367 CMS
Novartis Pharmaceuticals Corporation $24.07 05/08/2025 Food and Beverage No dispute reported 06/30/2026 1200161355 CMS
SCPHARMACEUTICALS INC. $21.74 05/01/2025 Food and Beverage No dispute reported 06/30/2026 1228184064 CMS
ABIOMED $149.64 04/25/2025 Food and Beverage No dispute reported 06/30/2026 1174446054 CMS
Amgen Inc. $23.28 04/24/2025 Food and Beverage No dispute reported 06/30/2026 1229421490 CMS
Novartis Pharmaceuticals Corporation $22.20 04/23/2025 Food and Beverage No dispute reported 06/30/2026 1200161353 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $22.20 04/18/2025 Food and Beverage No dispute reported 06/30/2026 1173732410 CMS
Novartis Pharmaceuticals Corporation $14.74 03/27/2025 Food and Beverage No dispute reported 06/30/2026 1200161351 CMS
Regeneron Healthcare Solutions, Inc. $31.88 03/17/2025 Food and Beverage No dispute reported 06/30/2026 1213103276 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $23.39 03/13/2025 Food and Beverage No dispute reported 06/30/2026 1173732408 CMS
Merck Sharp & Dohme LLC $21.88 03/11/2025 Food and Beverage No dispute reported 06/30/2026 1238341753 CMS
Novartis Pharmaceuticals Corporation $21.93 03/10/2025 Food and Beverage No dispute reported 06/30/2026 1200161349 CMS
Amgen Inc. $22.68 03/04/2025 Food and Beverage No dispute reported 06/30/2026 1229421467 CMS
AstraZeneca Pharmaceuticals LP $16.22 03/04/2025 Food and Beverage No dispute reported 06/30/2026 1206985494 CMS
Esperion Therapeutics, Inc. $17.87 03/04/2025 Food and Beverage No dispute reported 06/30/2026 1243983554 CMS
E.R. Squibb & Sons, L.L.C. $16.39 02/27/2025 Food and Beverage No dispute reported 06/30/2026 1184440412 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $16.23 02/25/2025 Food and Beverage No dispute reported 06/30/2026 1223034202 CMS
Novartis Pharmaceuticals Corporation $16.20 02/20/2025 Food and Beverage No dispute reported 06/30/2026 1200161345 CMS
Novartis Pharmaceuticals Corporation $1.19 02/20/2025 Food and Beverage No dispute reported 06/30/2026 1200161347 CMS
SCPHARMACEUTICALS INC. $21.75 02/20/2025 Food and Beverage No dispute reported 06/30/2026 1228176648 CMS
AstraZeneca Pharmaceuticals LP $18.59 02/13/2025 Food and Beverage No dispute reported 06/30/2026 1206750793 CMS
Merck Sharp & Dohme LLC $27.87 02/11/2025 Food and Beverage No dispute reported 06/30/2026 1238114622 CMS
Amgen Inc. $8.85 01/28/2025 Food and Beverage No dispute reported 06/30/2026 1229421456 CMS
E.R. Squibb & Sons, L.L.C. $23.63 01/27/2025 Food and Beverage No dispute reported 06/30/2026 1184440406 CMS
Novartis Pharmaceuticals Corporation $25.77 01/23/2025 Food and Beverage No dispute reported 06/30/2026 1200161341 CMS
Alnylam Pharmaceuticals Inc. $24.10 01/16/2025 Food and Beverage No dispute reported 06/30/2026 1212744953 CMS
Novartis Pharmaceuticals Corporation $12.92 01/09/2025 Food and Beverage No dispute reported 06/30/2026 1200161339 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $24.22 01/08/2025 Food and Beverage No dispute reported 06/30/2026 1173732406 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.13 01/07/2025 Food and Beverage No dispute reported 06/30/2026 1223034200 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.

Cite this record.

Plain
OLIVIA WEI CHANG, NPI 1649844085. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1649844085.
APA 7
IndustryPayments. (2026). OLIVIA WEI CHANG, NPI 1649844085 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1649844085
Bluebook
OLIVIA WEI CHANG, NPI 1649844085, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1649844085.

Source: Centers for Medicare & Medicaid Services, Open Payments.