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 · PY2022 · Entire year

$5,705.56

251 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

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $5,267.96 242
Long term medical supply or device loan $366.06 4
Education $71.54 5

By paying entity

PY2022 · entire year · sorted by reported total

Paying entityAmountRecords
AstraZeneca Pharmaceuticals LP $659.39 25
E.R. Squibb & Sons, L.L.C. $651.46 28
Novartis Pharmaceuticals Corporation $648.87 20
Incyte Corporation $307.86 11
GENZYME CORPORATION $307.12 11
Amgen Inc. $259.19 17
PUMA BIOTECHNOLOGY, INC. $238.01 7
Celgene Corporation $203.68 9
Lilly USA, LLC $201.00 11
Gilead Sciences, Inc. $185.63 11
TerSera Therapeutics LLC $158.55 7
JAZZ PHARMACEUTICALS INC. $150.00 1
Janssen Biotech, Inc. $145.45 9
Daiichi Sankyo Inc. $142.34 7
Merck Sharp & Dohme LLC $131.04 9
PFIZER INC. $119.40 8
Janssen Scientific Affairs, LLC $102.18 1
Pharmacyclics LLC, an AbbVie Company $100.52 4
Karyopharm Therapeutics Inc. $95.85 5
Rigel Pharmaceuticals, Inc. $62.25 2
ARRAY BIOPHARMA INC $61.14 3
Alexion Pharmaceuticals, Inc. $57.85 3
EISAI INC. $57.18 3
Genentech USA, Inc. $55.71 8
Seagen Inc. $55.03 3
AVEO Pharmaceuticals, Inc. $52.96 3
Takeda Pharmaceuticals U.S.A., Inc. $46.70 2
Myovant Sciences Inc. $45.94 3
Taiho Oncology, Inc. $44.10 2
EUSA Pharma (US) LLC $35.75 2
BeiGene USA, Inc. $27.75 1
EMD Serono, Inc. $24.63 1
PharmaEssentia USA Corporation $23.86 1
Regeneron Healthcare Solutions, Inc. $23.80 1
Adaptive Biotechnologies Corporation $23.05 1
Bayer HealthCare Pharmaceuticals Inc. $22.51 1
Foundation Medicine, Inc. $21.75 1
Global Blood Therapeutics, Inc. $20.31 1
Exelixis Inc. $19.70 1
Astellas Pharma US Inc $19.61 1
Novocure Inc. $18.71 1
Mylan Institutional Inc. $17.34 1
ABBVIE INC. $16.49 1
Stemline Therapeutics Inc. $15.10 1
GE HealthCare $14.89 1
Kite Pharma, Inc. $13.91 1

Page 2 of 6; records 51–100 of 251 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

BRIAN JOHN LEBERTHON

NPI 1326023979 · CMS profile ID 241091

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

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.

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, PY2022; 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 2 of 6; records 51–100 of 251 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1326023979?year=2022&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

Cite these filtered records

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

Plain
BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091. General Payments, PY2022; 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 2 of 6; records 51–100 of 251 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1326023979?year=2022&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091. General Payments, PY2022; 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 2 of 6; records 51–100 of 251 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1326023979?year=2022&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091, IndustryPayments, General Payments, PY2022; 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 2 of 6; records 51–100 of 251 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1326023979?year=2022&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2022

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

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

251 matching records · $5,705.56 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 251 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 51–100 of 251.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Incyte Corporation $24.8610/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943015889 CMS
EUSA Pharma (US) LLC $15.9410/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 964301207 CMS
Daiichi Sankyo Inc. $21.4309/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930840039 CMS
Lilly USA, LLC $12.6609/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 917917791 CMS
Lilly USA, LLC $0.3509/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 917918687 CMS
Novartis Pharmaceuticals Corporation $19.4209/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893881083 CMS
PFIZER INC. $16.3209/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949314559 CMS
AstraZeneca Pharmaceuticals LP $20.6909/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914628995 CMS
E.R. Squibb & Sons, L.L.C. $124.7309/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605359 CMS
Merck Sharp & Dohme LLC $13.3709/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944588817 CMS
AstraZeneca Pharmaceuticals LP $15.7109/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914696909 CMS
Gilead Sciences, Inc. $18.3009/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929485553 CMS
Janssen Biotech, Inc. $8.3009/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885606631 CMS
Celgene Corporation $27.3209/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605339 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.8409/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 955698309 CMS
E.R. Squibb & Sons, L.L.C. $13.4209/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605345 CMS
E.R. Squibb & Sons, L.L.C. $4.3709/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605347 CMS
Adaptive Biotechnologies Corporation $23.0509/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 951437197 CMS
AstraZeneca Pharmaceuticals LP $22.8208/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915482883 CMS
Incyte Corporation $25.6708/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943015875 CMS
E.R. Squibb & Sons, L.L.C. $21.7608/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605333 CMS
Gilead Sciences, Inc. $9.2608/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929485543 CMS
Incyte Corporation $19.7608/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943015885 CMS
E.R. Squibb & Sons, L.L.C. $17.5008/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605323 CMS
Janssen Biotech, Inc. $6.8008/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885606635 CMS
Novartis Pharmaceuticals Corporation $15.3408/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893881079 CMS
EUSA Pharma (US) LLC $19.8108/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 964303909 CMS
Amgen Inc. $33.2808/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939945017 CMS
Daiichi Sankyo Inc. $21.7208/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930828237 CMS
AstraZeneca Pharmaceuticals LP $21.0308/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914828925 CMS
Daiichi Sankyo Inc. $20.2708/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930816119 CMS
GENZYME CORPORATION $17.9208/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938823771 CMS
AstraZeneca Pharmaceuticals LP $22.7508/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915078331 CMS
E.R. Squibb & Sons, L.L.C. $13.9408/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605331 CMS
Myovant Sciences Inc. $15.5308/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 941219593 CMS
Amgen Inc. $6.5808/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939459719 CMS
Gilead Sciences, Inc. $18.6408/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929485557 CMS
Celgene Corporation $29.3108/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932605337 CMS
AstraZeneca Pharmaceuticals LP $17.5408/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914708551 CMS
JAZZ PHARMACEUTICALS INC. $150.0008/04/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 951401329 CMS
Novartis Pharmaceuticals Corporation $9.1508/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893881075 CMS
PUMA BIOTECHNOLOGY, INC. $17.9908/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942286723 CMS
BeiGene USA, Inc. $27.7507/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 940798529 CMS
AVEO Pharmaceuticals, Inc. $19.2307/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 950102349 CMS
Novartis Pharmaceuticals Corporation $20.0007/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893881067 CMS
Merck Sharp & Dohme LLC $8.5307/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944591079 CMS
Regeneron Healthcare Solutions, Inc. $23.8007/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 927252549 CMS
Karyopharm Therapeutics Inc. $18.7107/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946513671 CMS
Novartis Pharmaceuticals Corporation $16.1807/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893881071 CMS
PUMA BIOTECHNOLOGY, INC. $125.0007/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942299477 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.