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 WARREN KWAN

Allopathic & Osteopathic Physicians Dermatology

NPI
1376504407
CMS profile
152429
Location
LOS ANGELES, 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

$20,206.50

78 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

By paying entity

PY2019 · entire year · sorted by reported total

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

78 matching records · $20,206.50 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 78 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 78.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Galderma Laboratories, L.P. $894.0012/18/2019 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
06/30/2026687694767 CMS
Galderma Laboratories, L.P. $1,600.0012/13/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694765 CMS
Sun Pharmaceutical Industries Inc. $17.4412/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026704581249 CMS
Regeneron Healthcare Solutions, Inc. $20.3812/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673410793 CMS
Ortho Dermatologics, a division of Bausch Health US, LLC $114.0611/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026684589197 CMS
Galderma Laboratories, L.P. $12.3511/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694761 CMS
Galderma Laboratories, L.P. $1,500.0011/06/2019 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
06/30/2026687694763 CMS
AbbVie, Inc. $22.1610/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026647717989 CMS
Galderma Laboratories, L.P. $108.8210/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694759 CMS
Galderma Laboratories, L.P. $20.9710/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694757 CMS
Galderma Laboratories, L.P. $98.5010/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694751 CMS
Galderma Laboratories, L.P. $33.1510/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694753 CMS
Galderma Laboratories, L.P. $37.5110/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694755 CMS
LEO Pharma Inc. $11.3910/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687264765 CMS
PFIZER INC. $6.2410/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673202703 CMS
Janssen Scientific Affairs, LLC $99.7709/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026657599353 CMS
Allergan Inc. $21.5108/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690731 CMS
Galderma Laboratories, L.P. $450.0008/24/2019 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
06/30/2026687694749 CMS
Biofrontera Inc. $22.2508/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026689444451 CMS
Galderma Laboratories, L.P. $88.2608/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694747 CMS
Amgen Inc. $25.7908/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026731301119 CMS
Galderma Laboratories, L.P. $1,500.0008/06/2019 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
06/30/2026687694743 CMS
Galderma Laboratories, L.P. $1,500.0008/06/2019 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
06/30/2026687694745 CMS
Galderma Laboratories, L.P. $119.3407/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694741 CMS
Almirall LLC $142.6007/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026676661821 CMS
Galderma Laboratories, L.P. $23.0007/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694737 CMS
Galderma Laboratories, L.P. $93.6507/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694739 CMS
Allergan Inc. $15.3107/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690727 CMS
PFIZER INC. $8.2107/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673202007 CMS
Allergan Inc. $9.9407/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690725 CMS
Galderma Laboratories, L.P. $25.6806/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694735 CMS
Galderma Laboratories, L.P. $17.3406/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694733 CMS
Allergan Inc. $16.0206/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690721 CMS
Allergan Inc. $15.2905/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690719 CMS
Novartis Pharmaceuticals Corporation $23.5705/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659724241 CMS
Ortho Dermatologics, a division of Bausch Health US, LLC $22.6405/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026684589195 CMS
Galderma Laboratories, L.P. $1,500.0005/07/2019 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
06/30/2026687694731 CMS
Genentech USA, Inc. $19.9505/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026681147849 CMS
Allergan Inc. $19.8004/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670690717 CMS
Galderma Laboratories, L.P. $3.7304/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694729 CMS
Almirall LLC $21.3804/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026676661816 CMS
Solta Medical, a division of Bausch Health US, LLC $105.3604/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026684998955 CMS
Lilly USA, LLC $19.4604/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026658217239 CMS
Galderma Laboratories, L.P. $77.5104/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694727 CMS
Galderma Laboratories, L.P. $1,500.0004/08/2019 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
06/30/2026687694719 CMS
Galderma Laboratories, L.P. $1,500.0004/08/2019 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
06/30/2026687694721 CMS
Galderma Laboratories, L.P. $500.0004/08/2019 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
06/30/2026687694723 CMS
Galderma Laboratories, L.P. $3,500.0004/08/2019 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
06/30/2026687694725 CMS
Merz North America, Inc. $133.5604/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026689377909 CMS
Galderma Laboratories, L.P. $99.7704/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687694717 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $20,206.50 78
PY2020 $14,003.13 67
PY2021 $4,973.09 52
PY2022 $23,316.58 73
PY2023 $29,301.35 48
PY2024 $1,320.25 29
PY2025 $6,231.45 42

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 WARREN KWAN, NPI 1376504407. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1376504407.
APA 7
IndustryPayments. (2026). WILLIAM WARREN KWAN, NPI 1376504407 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1376504407
Bluebook
WILLIAM WARREN KWAN, NPI 1376504407, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1376504407.

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