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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General Payments · PY2019 · Entire year

$3,253.87

177 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,253.79 176
Education $0.08 1

By paying entity

PY2019 · entire year · sorted by reported total

Page 3 of 4; records 101–150 of 177 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

WILLIAM WEI-MING CHANG

NPI 1417902149 · CMS profile ID 245292

Allopathic & Osteopathic Physicians / Internal Medicine / Pulmonary Disease

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.

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.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 3 of 4; records 101–150 of 177 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1417902149?year=2019&recipient=provider&page=3#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
WILLIAM WEI-MING CHANG, NPI 1417902149, CMS profile ID 245292. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 3 of 4; records 101–150 of 177 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1417902149?year=2019&recipient=provider&page=3#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). WILLIAM WEI-MING CHANG, NPI 1417902149, CMS profile ID 245292. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 3 of 4; records 101–150 of 177 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1417902149?year=2019&recipient=provider&page=3#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
WILLIAM WEI-MING CHANG, NPI 1417902149, CMS profile ID 245292, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 3 of 4; records 101–150 of 177 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1417902149?year=2019&recipient=provider&page=3#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

177 matching records · $3,253.87 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 177 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 101–150 of 177.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
GlaxoSmithKline, LLC. $21.2505/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670821989 CMS
Janssen Pharmaceuticals, Inc $15.8405/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658418405 CMS
GlaxoSmithKline, LLC. $4.4505/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670529897 CMS
GlaxoSmithKline, LLC. $5.4105/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671360661 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $0.0805/24/2019 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700301495 CMS
Genentech USA, Inc. $24.2205/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681245679 CMS
GlaxoSmithKline, LLC. $16.9605/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670989813 CMS
Shire North American Group Inc $19.2305/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 637801327 CMS
Grifols USA, LLC $17.1705/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692586427 CMS
Regeneron Healthcare Solutions, Inc. $8.9405/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673358981 CMS
Bayer HealthCare Pharmaceuticals Inc. $13.2005/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 628417577 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $8.5805/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700301525 CMS
Genentech USA, Inc. $4.3105/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681185185 CMS
Genentech USA, Inc. $4.1005/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681265363 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $124.8004/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700050759 CMS
GlaxoSmithKline, LLC. $24.9504/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670529339 CMS
Grifols USA, LLC $3.2904/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692584081 CMS
E.R. Squibb & Sons, L.L.C. $16.1604/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651279071 CMS
Genentech USA, Inc. $23.0304/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681276773 CMS
GlaxoSmithKline, LLC. $4.1804/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670529855 CMS
GlaxoSmithKline, LLC. $6.2404/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671524373 CMS
Philips Electronics North America Corporation $3.9104/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684089981 CMS
Regeneron Healthcare Solutions, Inc. $19.8304/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673358977 CMS
Regeneron Healthcare Solutions, Inc. $2.0404/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673358979 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $9.5304/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700301527 CMS
GlaxoSmithKline, LLC. $19.6004/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671510325 CMS
GlaxoSmithKline, LLC. $7.7804/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671518289 CMS
GENZYME CORPORATION $6.7504/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694023899 CMS
Mylan Specialty L.P. $18.6204/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694780841 CMS
Actelion Pharmaceuticals US, Inc. $19.1904/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659736433 CMS
GlaxoSmithKline, LLC. $6.2303/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670533167 CMS
GlaxoSmithKline, LLC. $19.3903/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671481145 CMS
Grifols USA, LLC $21.7903/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692582053 CMS
Vertiflex, Inc. $14.7603/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 669448639 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.5803/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700301529 CMS
GlaxoSmithKline, LLC. $5.4203/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670531703 CMS
Genentech USA, Inc. $23.2903/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681289149 CMS
JAZZ PHARMACEUTICALS INC. $3.5203/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684164783 CMS
JAZZ PHARMACEUTICALS INC. $15.4003/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684164785 CMS
GENZYME CORPORATION $124.7603/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694018183 CMS
GlaxoSmithKline, LLC. $23.3503/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671540111 CMS
GENZYME CORPORATION $6.3403/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 693948767 CMS
GlaxoSmithKline, LLC. $16.4403/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670597725 CMS
Novo Nordisk Inc $15.7303/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 669486033 CMS
Philips Electronics North America Corporation $15.9903/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684089929 CMS
GlaxoSmithKline, LLC. $19.5002/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670680885 CMS
Actelion Pharmaceuticals US, Inc. $19.6702/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659736427 CMS
Genentech USA, Inc. $14.7402/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681183859 CMS
Genentech USA, Inc. $2.4402/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681299681 CMS
Regeneron Healthcare Solutions, Inc. $10.7902/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673358975 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.