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

Covered recipient · General Payments record

WILLIAM WEI-MING CHANG

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1417902149
CMS profile
245292
Location
SAN JUAN CAPISTRANO, 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.

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Filter and download payment records

General Payments · PY2025 · Entire year

$2,776.71

143 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . 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 ↗

By nature of payment

PY2025 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,668.11 140
Education $108.60 3

By paying entity

PY2025 · entire year · sorted by reported total

Payment records · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

143 matching records · $2,776.71 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 143 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 143.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Insmed, Inc. $10.6612/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186303896 CMS
Avadel CNS Pharmaceuticals, LLC $8.6712/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532493 CMS
AstraZeneca Pharmaceuticals LP $21.4312/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206643479 CMS
Verona Pharma, Inc. $12.6612/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233775382 CMS
Avadel CNS Pharmaceuticals, LLC $6.3312/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532491 CMS
GlaxoSmithKline, LLC. $26.7312/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190826589 CMS
HARMONY BIOSCIENCES LLC $46.9912/05/2025 Education No dispute reported Delay: No
Change: NEW
06/30/20261222389710 CMS
Avadel CNS Pharmaceuticals, LLC $7.1012/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532489 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $22.9312/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223031648 CMS
Insmed, Inc. $7.5912/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186304010 CMS
Avadel CNS Pharmaceuticals, LLC $35.6611/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532487 CMS
GlaxoSmithKline, LLC. $27.3111/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190376395 CMS
United Therapeutics Corporation $24.7011/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261242554022 CMS
Axsome Therapeutics, Inc. $32.7311/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235614692 CMS
Insmed, Inc. $6.0411/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186282318 CMS
Verona Pharma, Inc. $34.1011/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233775388 CMS
Avadel CNS Pharmaceuticals, LLC $6.1710/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532485 CMS
Insmed, Inc. $10.5310/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186287182 CMS
Verona Pharma, Inc. $26.6410/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233775386 CMS
GlaxoSmithKline, LLC. $10.2810/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190708975 CMS
GlaxoSmithKline, LLC. $2.6410/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190863667 CMS
Insmed, Inc. $14.5310/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186292056 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $34.1210/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223031646 CMS
GlaxoSmithKline, LLC. $14.0510/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261191164247 CMS
Insmed, Inc. $4.9410/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186292100 CMS
Avadel CNS Pharmaceuticals, LLC $28.9010/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532483 CMS
AstraZeneca Pharmaceuticals LP $21.6710/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261207059946 CMS
Verona Pharma, Inc. $15.5010/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233775410 CMS
GENZYME CORPORATION $26.3809/30/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233394060 CMS
Insmed, Inc. $22.5809/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186267946 CMS
GlaxoSmithKline, LLC. $27.8809/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190624810 CMS
AstraZeneca Pharmaceuticals LP $14.1709/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206389158 CMS
Pulmonx Corporation $17.4709/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261199537331 CMS
Viatris Specialty LLC $30.2009/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238465041 CMS
Actelion Pharmaceuticals US, Inc. $25.5209/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174187867 CMS
Verona Pharma, Inc. $14.4509/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233775420 CMS
Insmed, Inc. $8.0609/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186279032 CMS
Avadel CNS Pharmaceuticals, LLC $8.4109/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261208532481 CMS
GlaxoSmithKline, LLC. $27.9909/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261191238859 CMS
GlaxoSmithKline, LLC. $13.5009/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190658252 CMS
GlaxoSmithKline, LLC. $9.0208/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261191392217 CMS
ABBVIE INC. $25.4508/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261201633572 CMS
GlaxoSmithKline, LLC. $12.0208/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190720514 CMS
Vifor Pharma, Inc. $28.6508/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261172020837 CMS
GlaxoSmithKline, LLC. $32.0608/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261190667604 CMS
Insmed, Inc. $11.8808/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186320514 CMS
Insmed, Inc. $12.1708/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186289952 CMS
Regeneron Healthcare Solutions, Inc. $31.8408/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261212886916 CMS
Vifor Pharma, Inc. $13.8508/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261172020835 CMS
HARMONY BIOSCIENCES LLC $30.5008/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222401068 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $3,253.87 177
PY2020 $910.42 46
PY2021 $1,771.11 86
PY2022 $1,574.53 84
PY2023 $2,375.06 118
PY2024 $2,040.08 92
PY2025 $2,776.71 143

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
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
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
WILLIAM WEI-MING CHANG, NPI 1417902149. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1417902149.
APA 7
IndustryPayments. (2026). WILLIAM WEI-MING CHANG, NPI 1417902149 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1417902149
Bluebook
WILLIAM WEI-MING CHANG, NPI 1417902149, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1417902149.

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