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

PAUL S CHANG

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1487627261
CMS profile
157343
Location
BUENA PARK, 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 · PY2020 · Entire year

$6,831.10

192 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 ↗

Payment records · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

192 matching records · $6,831.10 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 192 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 192.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Janssen Pharmaceuticals, Inc $19.9312/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753379731 CMS
Amarin Pharma Inc. $23.4912/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739995167 CMS
Lilly USA, LLC $20.4812/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728588191 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.5612/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026720996808 CMS
Amgen Inc. $18.9712/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741259403 CMS
AstraZeneca Pharmaceuticals LP $11.4712/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026735826631 CMS
Allergan, Inc. $12.8012/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723841485 CMS
Amgen Inc. $7.6712/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741428269 CMS
Gilead Sciences, Inc. $1,540.0012/09/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743818401 CMS
Novo Nordisk Inc $23.2012/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026745036537 CMS
Amarin Pharma Inc. $14.8212/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739995151 CMS
IRONWOOD PHARMACEUTICALS, INC $22.6912/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026749824181 CMS
Gilead Sciences, Inc. $28.2312/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747958995 CMS
Gilead Sciences, Inc. $9.3612/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747958993 CMS
Medicure Pharma Inc. $212.7012/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751831637 CMS
Amgen Inc. $7.5412/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741428267 CMS
Allergan, Inc. $19.7812/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723841483 CMS
Janssen Pharmaceuticals, Inc $1.4612/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753379727 CMS
Janssen Pharmaceuticals, Inc $20.0112/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753379729 CMS
Amgen Inc. $18.9711/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741259401 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.9211/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737503935 CMS
Eisai Inc. $21.1411/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751252123 CMS
Gilead Sciences, Inc. $7.3411/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747958991 CMS
Janssen Pharmaceuticals, Inc $16.7711/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753379733 CMS
Amgen Inc. $8.9911/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741259419 CMS
GlaxoSmithKline, LLC. $21.8811/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026738651049 CMS
Lilly USA, LLC $14.6411/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728578159 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.4611/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026720688761 CMS
Novo Nordisk Inc $6.4311/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026745004055 CMS
Allergan, Inc. $23.3411/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723841481 CMS
Esperion Therapeutics, Inc. $15.0411/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737187597 CMS
PFIZER INC. $22.9811/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743794633 CMS
Amarin Pharma Inc. $18.0811/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739996381 CMS
Novo Nordisk Inc $21.8711/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026745003965 CMS
Amarin Pharma Inc. $19.5411/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739983261 CMS
Allergan, Inc. $4.6911/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026723841479 CMS
Amgen Inc. $8.2811/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741259435 CMS
Merck Sharp & Dohme Corporation $15.0111/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747812281 CMS
Merck Sharp & Dohme Corporation $16.5111/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747801063 CMS
Novo Nordisk Inc $4.1311/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026745039823 CMS
IRONWOOD PHARMACEUTICALS, INC $22.3911/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026749829019 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.1811/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737503933 CMS
Gilead Sciences, Inc. $7.0310/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747958989 CMS
Janssen Pharmaceuticals, Inc $14.7410/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753379725 CMS
Eisai Inc. $14.7810/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751259023 CMS
AstraZeneca Pharmaceuticals LP $16.6310/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026736100011 CMS
Novo Nordisk Inc $16.3610/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026745019331 CMS
Amarin Pharma Inc. $8.9810/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026739996377 CMS
Gilead Sciences, Inc. $7.0010/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747958987 CMS
Amgen Inc. $7.0010/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741259417 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $13,586.61 270
PY2020 $6,831.10 192
PY2021 $8,219.26 249
PY2022 $7,824.93 231
PY2023 $10,021.16 173
PY2024 $2,573.83 122
PY2025 $2,127.64 115

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
PAUL S CHANG, NPI 1487627261. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1487627261.
APA 7
IndustryPayments. (2026). PAUL S CHANG, NPI 1487627261 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1487627261
Bluebook
PAUL S CHANG, NPI 1487627261, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1487627261.

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