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

BRIAN JOHN LEBERTHON

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1326023979
CMS profile
241091
Location
WEST COVINA, 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 · PY2025 · Entire year

$6,217.64

261 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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 $5,972.95 257
Education $244.69 4

By paying entity

PY2025 · entire year · sorted by reported total

Paying entityAmountRecords
Janssen Biotech, Inc. $970.26 38
AstraZeneca Pharmaceuticals LP $838.60 30
PFIZER INC. $305.47 19
Incyte Corporation $296.61 12
Novartis Pharmaceuticals Corporation $251.73 12
Daiichi Sankyo Inc. $249.34 14
GlaxoSmithKline, LLC. $207.20 7
Gilead Sciences, Inc. $205.25 9
Merck Sharp & Dohme LLC $202.92 8
Amgen Inc. $174.48 3
Spectrum Pharmaceuticals Inc. $159.09 9
Alexion Pharmaceuticals, Inc. $149.92 6
PharmaEssentia USA Corporation $143.60 6
Celgene Corporation $137.39 7
Aveo Pharmaceuticals, Inc. $120.46 5
Bayer Healthcare Pharmaceuticals Inc. $117.22 5
Karyopharm Therapeutics Inc. $116.38 6
ABBVIE INC. $111.86 5
GENZYME CORPORATION $107.65 4
Boehringer Ingelheim Pharmaceuticals, Inc. $106.89 6
SEAGEN INC. $99.99 1
Coherus Oncology, Inc. $86.65 4
PUMA BIOTECHNOLOGY, INC. $84.86 4
Azurity Pharmaceuticals, Inc. $76.64 4
Lilly USA, LLC $72.08 3
Astellas Pharma US Inc $67.37 3
ARRAY BIOPHARMA INC $60.98 2
Stemline Therapeutics Inc. $58.39 2
Genmab U.S., Inc. $55.11 2
E.R. Squibb & Sons, L.L.C. $45.54 3
Syndax Pharmaceuticals, Inc. $44.81 2
EMD Serono, Inc. $43.73 2
Rigel Pharmaceuticals, Inc. $42.00 2
SOBI, INC $38.75 1
TerSera Therapeutics LLC $33.38 1
Dendreon Pharmaceuticals LLC $30.66 1
Agios Pharmaceuticals, Inc. $29.27 1
Legend Biotech USA Inc. $28.40 1
Boston Scientific Corporation $27.78 1
Sumitomo Pharma America, Inc. $25.82 1
JAZZ PHARMACEUTICALS INC. $25.53 1
Regeneron Healthcare Solutions, Inc. $24.73 1
Eisai Inc. $23.18 1
KYOWA KIRIN, INC. $23.10 1
Novocure Inc. $20.80 1
ACCORD HEALTHCARE, INC. $20.22 1
GE HEALTHCARE $19.98 1
Caris MPI, Inc. $19.76 1
Ipsen Biopharmaceuticals, Inc $15.81 1

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

261 matching records · $6,217.64 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 261 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 261.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AstraZeneca Pharmaceuticals LP $22.1912/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206332363 CMS
Janssen Biotech, Inc. $19.0412/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174875648 CMS
Novartis Pharmaceuticals Corporation $32.1212/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200607752 CMS
Incyte Corporation $20.1412/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261226023864 CMS
Janssen Biotech, Inc. $37.3312/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876405 CMS
Janssen Biotech, Inc. $6.4112/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876844 CMS
PFIZER INC. $4.3812/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229325431 CMS
PharmaEssentia USA Corporation $25.1212/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246833029 CMS
AstraZeneca Pharmaceuticals LP $31.9412/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206978794 CMS
TerSera Therapeutics LLC $33.3812/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244054361 CMS
Merck Sharp & Dohme LLC $22.2812/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238134439 CMS
Aveo Pharmaceuticals, Inc. $16.8512/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261199898372 CMS
Rigel Pharmaceuticals, Inc. $17.6512/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261247380041 CMS
GENZYME CORPORATION $22.4512/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261233299068 CMS
Incyte Corporation $25.0612/02/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225963157 CMS
Janssen Biotech, Inc. $46.3212/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174875637 CMS
Azurity Pharmaceuticals, Inc. $24.7811/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261242674363 CMS
Karyopharm Therapeutics Inc. $28.6111/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246643203 CMS
PFIZER INC. $21.0611/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261230096730 CMS
Janssen Biotech, Inc. $10.7311/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876467 CMS
AstraZeneca Pharmaceuticals LP $24.8611/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206704830 CMS
JAZZ PHARMACEUTICALS INC. $25.5311/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234328424 CMS
KYOWA KIRIN, INC. $23.1011/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261222092537 CMS
Janssen Biotech, Inc. $33.4411/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876123 CMS
Janssen Biotech, Inc. $27.2011/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876110 CMS
Incyte Corporation $25.8111/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225965893 CMS
Regeneron Healthcare Solutions, Inc. $24.7311/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261212971301 CMS
AstraZeneca Pharmaceuticals LP $28.7211/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206417025 CMS
Bayer Healthcare Pharmaceuticals Inc. $16.5011/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225620978 CMS
Daiichi Sankyo Inc. $10.2611/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261197008277 CMS
Janssen Biotech, Inc. $12.2811/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876736 CMS
AstraZeneca Pharmaceuticals LP $32.8411/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206685194 CMS
Daiichi Sankyo Inc. $3.4111/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261197008273 CMS
PharmaEssentia USA Corporation $22.8411/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246833019 CMS
AstraZeneca Pharmaceuticals LP $19.7011/06/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206785636 CMS
Janssen Biotech, Inc. $48.7311/05/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174875955 CMS
Coherus Oncology, Inc. $21.9511/03/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261235235297 CMS
EMD Serono, Inc. $15.9410/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261236877799 CMS
Novartis Pharmaceuticals Corporation $32.1210/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200607750 CMS
Caris MPI, Inc. $19.7610/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234282342 CMS
Janssen Biotech, Inc. $31.5710/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174876377 CMS
Gilead Sciences, Inc. $32.6010/27/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261234425778 CMS
Incyte Corporation $27.9610/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261226196736 CMS
Alexion Pharmaceuticals, Inc. $24.1910/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261202981132 CMS
PUMA BIOTECHNOLOGY, INC. $23.6010/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261251741670 CMS
Incyte Corporation $26.9710/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261226190019 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.5810/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223024908 CMS
AstraZeneca Pharmaceuticals LP $26.7710/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206777317 CMS
PharmaEssentia USA Corporation $30.5910/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261246833015 CMS
Celgene Corporation $31.2210/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184905012 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $4,277.41 229
PY2020 $3,717.37 181
PY2021 $4,875.82 247
PY2022 $5,705.56 251
PY2023 $6,220.50 251
PY2024 $6,010.66 235
PY2025 $6,217.64 261

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
BRIAN JOHN LEBERTHON, NPI 1326023979. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1326023979.
APA 7
IndustryPayments. (2026). BRIAN JOHN LEBERTHON, NPI 1326023979 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1326023979
Bluebook
BRIAN JOHN LEBERTHON, NPI 1326023979, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1326023979.

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