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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General Payments · PY2021 · Entire year

$8,219.26

249 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 · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

249 matching records · $8,219.26 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 249 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 249.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.0812/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850321543 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.6812/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763583550 CMS
Novo Nordisk Inc $18.6212/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026811439631 CMS
VIVUS LLC $19.5412/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026814343719 CMS
DEXCOM, INC. $19.8212/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026845272773 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $1.2012/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850200125 CMS
Amarin Pharma Inc. $22.5812/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815215361 CMS
AbbVie Inc. $22.6112/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236803 CMS
Novo Nordisk Inc $4.4412/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026810764157 CMS
SCILEX PHARMACEUTICALS INC. $15.6212/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026846530909 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.1812/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763583552 CMS
ARBOR PHARMACEUTICALS, INC. $11.9012/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026830948697 CMS
PFIZER INC. $18.4512/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833180567 CMS
Janssen Pharmaceuticals, Inc $18.6412/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304623 CMS
Janssen Pharmaceuticals, Inc $3.6512/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304631 CMS
Nestle HealthCare Nutrition Inc. $26.0912/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026820881539 CMS
Ironwood Pharmaceuticals, Inc $26.2211/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026855096473 CMS
Ironwood Pharmaceuticals, Inc $1.4211/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026855131399 CMS
Bayer HealthCare Pharmaceuticals Inc. $125.0011/24/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026789063035 CMS
Janssen Pharmaceuticals, Inc $4.1811/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304621 CMS
Janssen Pharmaceuticals, Inc $17.4011/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304629 CMS
AstraZeneca Pharmaceuticals LP $12.0911/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829575815 CMS
Gilead Sciences, Inc. $1,540.0011/18/2021 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
06/30/2026845852809 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.1311/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763583554 CMS
AbbVie Inc. $27.8511/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236801 CMS
Gilead Sciences, Inc. $74.5911/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848174587 CMS
SCILEX PHARMACEUTICALS INC. $13.7411/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026846528751 CMS
Janssen Pharmaceuticals, Inc $6.6711/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304627 CMS
DEXCOM, INC. $21.1011/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026845272771 CMS
PFIZER INC. $9.2511/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833180563 CMS
PFIZER INC. $24.0911/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833514495 CMS
Novo Nordisk Inc $5.4111/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026811439626 CMS
VIVUS LLC $18.8411/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026814343717 CMS
Amarin Pharma Inc. $17.6911/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026815057085 CMS
Merck Sharp & Dohme Corporation $20.8511/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848678373 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $15.9411/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850234953 CMS
AbbVie Inc. $25.3711/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236799 CMS
Novo Nordisk Inc $4.5911/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026811583327 CMS
AbbVie Inc. $24.1810/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236797 CMS
Janssen Pharmaceuticals, Inc $14.0410/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788304625 CMS
SCILEX PHARMACEUTICALS INC. $13.1510/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026846527197 CMS
Novo Nordisk Inc $20.1610/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026811439621 CMS
Novo Nordisk Inc $0.4310/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026811583321 CMS
AstraZeneca Pharmaceuticals LP $14.3510/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026830171385 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.5910/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763583556 CMS
Gilead Sciences, Inc. $24.7510/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848174585 CMS
AbbVie Inc. $25.1210/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236795 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $9.2210/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850133033 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $4.6110/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026850275293 CMS
AbbVie Inc. $18.8410/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026794236793 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.