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 · PY2024 · Entire year

$6,010.66

235 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

PY2024 · entire year · sorted by reported total

By paying entity

PY2024 · entire year · sorted by reported total

Paying entityAmountRecords
AstraZeneca Pharmaceuticals LP $1,113.43 31
Incyte Corporation $467.93 18
Daiichi Sankyo Inc. $402.36 16
PFIZER INC. $327.10 20
Novartis Pharmaceuticals Corporation $307.68 19
Janssen Biotech, Inc. $289.46 12
Alexion Pharmaceuticals, Inc. $282.51 8
Acrotech Biopharma Inc. $270.97 5
Merck Sharp & Dohme LLC $194.11 8
Gilead Sciences, Inc. $185.29 10
JAZZ PHARMACEUTICALS INC. $172.47 2
ABBVIE INC. $132.95 5
E.R. Squibb & Sons, L.L.C. $120.95 7
GENZYME CORPORATION $116.92 5
Amgen Inc. $116.18 6
GlaxoSmithKline, LLC. $111.48 5
EMD Serono, Inc. $106.84 3
Agios Pharmaceuticals, Inc. $101.72 4
Celgene Corporation $99.91 3
PharmaEssentia USA Corporation $97.27 4
Takeda Pharmaceuticals U.S.A., Inc. $81.47 3
Karyopharm Therapeutics Inc. $78.21 5
PUMA BIOTECHNOLOGY, INC. $68.36 3
Coherus Biosciences Inc. $64.61 3
Spectrum Pharmaceuticals Inc. $60.24 3
SOBI, INC $57.61 2
BeiGene USA, Inc. $51.96 2
Otsuka America Pharmaceutical, Inc. $50.00 1
Ipsen Biopharmaceuticals, Inc $48.89 2
Boehringer Ingelheim Pharmaceuticals, Inc. $47.62 2
Janssen Pharmaceuticals, Inc $44.36 2
TAIHO ONCOLOGY, INC. $33.64 1
Aveo Pharmaceuticals, Inc. $32.50 1
Legend Biotech USA Inc. $28.40 1
ARRAY BIOPHARMA INC $26.90 2
Stemline Therapeutics Inc. $26.85 1
Lilly USA, LLC $23.94 1
Kyowa Kirin, Inc. $21.88 1
Pharmacosmos Therapeutics Inc. $21.05 1
Astellas Pharma US Inc $20.96 1
Novocure Inc. $19.83 1
ImmunoGen, Inc. $19.63 1
Eisai Inc. $18.47 1
Genentech USA, Inc. $17.60 1
Mirati Therapeutics, Inc. $14.65 1
Menarini Silicon Biosystems, Inc. $13.50 1

Page 2 of 5; records 51–100 of 235 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, PY2024; 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 5; records 51–100 of 235 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1326023979?year=2024&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff

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, PY2024; 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 5; records 51–100 of 235 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1326023979?year=2024&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
APA 7
IndustryPayments. (2026). BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091. General Payments, PY2024; 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 5; records 51–100 of 235 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=2024&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
Bluebook
BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091, IndustryPayments, General Payments, PY2024; 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 5; records 51–100 of 235 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff. https://industrypayments.org/provider/npi-1326023979?year=2024&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 · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

235 matching records · $6,010.66 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 235 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 235.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $1.9810/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131371047 CMS
PFIZER INC. $17.8310/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131372061 CMS
Merck Sharp & Dohme LLC $22.1509/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141796687 CMS
GlaxoSmithKline, LLC. $26.8209/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1116428644 CMS
PFIZER INC. $4.5009/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1132023153 CMS
Spectrum Pharmaceuticals Inc. $21.3909/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150655450 CMS
AstraZeneca Pharmaceuticals LP $24.6009/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1104490478 CMS
Alexion Pharmaceuticals, Inc. $26.2109/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1093924708 CMS
GlaxoSmithKline, LLC. $19.7609/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1116695367 CMS
Amgen Inc. $21.3609/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1111630654 CMS
Coherus Biosciences Inc. $20.8109/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1147279122 CMS
Celgene Corporation $32.6109/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101104544 CMS
Gilead Sciences, Inc. $9.8409/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133805365 CMS
Karyopharm Therapeutics Inc. $16.7909/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1145528308 CMS
Daiichi Sankyo Inc. $28.6709/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1089447390 CMS
AstraZeneca Pharmaceuticals LP $125.0009/13/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1104338696 CMS
Janssen Biotech, Inc. $26.3109/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078355753 CMS
Agios Pharmaceuticals, Inc. $24.2509/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1149641696 CMS
ABBVIE INC. $26.1709/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1104147486 CMS
PFIZER INC. $37.2309/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131354117 CMS
AstraZeneca Pharmaceuticals LP $32.3308/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105344637 CMS
Janssen Biotech, Inc. $12.1808/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078355722 CMS
AstraZeneca Pharmaceuticals LP $25.6408/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1104762404 CMS
AstraZeneca Pharmaceuticals LP $30.4808/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105671033 CMS
E.R. Squibb & Sons, L.L.C. $14.1208/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101305569 CMS
JAZZ PHARMACEUTICALS INC. $22.4708/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150209685 CMS
Novartis Pharmaceuticals Corporation $18.3808/20/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087031636 CMS
Novartis Pharmaceuticals Corporation $22.2708/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087031632 CMS
Janssen Pharmaceuticals, Inc $20.3208/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1077945100 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $21.4008/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1117963266 CMS
Daiichi Sankyo Inc. $22.3808/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1089447420 CMS
GlaxoSmithKline, LLC. $14.5208/14/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1116532884 CMS
Gilead Sciences, Inc. $17.2608/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133805363 CMS
Novartis Pharmaceuticals Corporation $23.8308/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087031630 CMS
E.R. Squibb & Sons, L.L.C. $18.7108/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101305567 CMS
PFIZER INC. $4.4708/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131900183 CMS
PharmaEssentia USA Corporation $24.0908/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1137310008 CMS
AstraZeneca Pharmaceuticals LP $19.3008/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105875877 CMS
Spectrum Pharmaceuticals Inc. $14.4308/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150656629 CMS
Amgen Inc. $20.1507/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1111630652 CMS
Janssen Biotech, Inc. $24.8607/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078355607 CMS
ARRAY BIOPHARMA INC $2.1307/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131337855 CMS
ARRAY BIOPHARMA INC $24.7707/30/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131337859 CMS
Acrotech Biopharma Inc. $13.7407/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1147105435 CMS
Incyte Corporation $4.0907/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141225552 CMS
BeiGene USA, Inc. $25.9507/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1120862767 CMS
Daiichi Sankyo Inc. $99.0007/25/2024 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1089447416 CMS
Incyte Corporation $23.4307/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141301451 CMS
AstraZeneca Pharmaceuticals LP $125.0007/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1104431041 CMS
Incyte Corporation $15.1507/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141301441 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.