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 · PY2020 · Entire year

$3,717.37

181 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $3,509.02 178
Education $208.35 3

By paying entity

PY2020 · entire year · sorted by reported total

Page 2 of 4; records 51–100 of 181 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, PY2020; 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 4; records 51–100 of 181 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1326023979?year=2020&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019

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, PY2020; 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 4; records 51–100 of 181 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1326023979?year=2020&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7
IndustryPayments. (2026). BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091. General Payments, PY2020; 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 4; records 51–100 of 181 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=2020&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook
BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091, IndustryPayments, General Payments, PY2020; 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 4; records 51–100 of 181 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1326023979?year=2020&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 · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

181 matching records · $3,717.37 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 181 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 181.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
TerSera Therapeutics LLC $25.3410/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747396505 CMS
E.R. Squibb & Sons, L.L.C. $17.3510/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874433 CMS
AstraZeneca Pharmaceuticals LP $19.0210/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736078231 CMS
Lilly USA, LLC $15.3509/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 728370359 CMS
E.R. Squibb & Sons, L.L.C. $20.6309/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874413 CMS
Genentech USA, Inc. $18.7709/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 742991281 CMS
Secura Bio, Inc. $13.6309/24/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733546899 CMS
Secura Bio, Inc. $1.2209/24/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733546901 CMS
PFIZER INC. $20.0809/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743348173 CMS
Epizyme, Inc., $22.2209/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748603159 CMS
Celgene Corporation $23.9809/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874439 CMS
E.R. Squibb & Sons, L.L.C. $18.6909/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874407 CMS
Astellas Pharma US Inc $17.6909/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 718347869 CMS
PFIZER INC. $17.5509/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743360581 CMS
Puma Biotechnology, Inc. $26.0209/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750542813 CMS
Bayer HealthCare Pharmaceuticals Inc. $18.9109/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 713638413 CMS
Taiho Oncology, Inc. $23.6409/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 724402315 CMS
GENZYME CORPORATION $22.0809/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744143399 CMS
Pharmacyclics LLC, An AbbVie Company $28.4109/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 725670551 CMS
Genentech USA, Inc. $23.6309/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 742991297 CMS
GlaxoSmithKline, LLC. $20.8309/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738786677 CMS
Jazz Pharmaceuticals Inc. $125.0009/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744469537 CMS
AstraZeneca Pharmaceuticals LP $24.6109/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736162739 CMS
Clovis Oncology, Inc. $24.2909/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 722233775 CMS
Janssen Biotech, Inc. $23.6309/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719062109 CMS
Secura Bio, Inc. $6.0809/01/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733547109 CMS
Secura Bio, Inc. $11.8508/31/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733547131 CMS
Secura Bio, Inc. $4.3008/31/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733547133 CMS
Secura Bio, Inc. $0.8908/31/2020 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 733547137 CMS
Alexion Pharmaceuticals, Inc. $9.1008/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 726640161 CMS
Merck Sharp & Dohme Corporation $17.6908/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747754375 CMS
Dova Pharmaceuticals $14.8508/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 752353545 CMS
Agios Pharmaceuticals, Inc. $15.6208/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751964807 CMS
Merck Sharp & Dohme Corporation $18.4108/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747720949 CMS
Foundation Medicine, Inc. $26.0008/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 714556931 CMS
Puma Biotechnology, Inc. $27.4008/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750542995 CMS
Novartis Pharmaceuticals Corporation $13.6208/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 725988925 CMS
Bayer HealthCare Pharmaceuticals Inc. $4.2408/19/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 713649741 CMS
Alexion Pharmaceuticals, Inc. $43.6008/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 726640163 CMS
West Therapeutics Development, LLC $20.1408/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 745467337 CMS
AstraZeneca Pharmaceuticals LP $22.2708/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735979139 CMS
PFIZER INC. $21.5108/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743749695 CMS
Merck Sharp & Dohme Corporation $21.5308/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747684403 CMS
ARRAY BIOPHARMA INC $13.9508/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 743749693 CMS
Celgene Corporation $23.2508/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874443 CMS
E.R. Squibb & Sons, L.L.C. $14.1108/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 727874399 CMS
GlaxoSmithKline, LLC. $27.8108/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 738505729 CMS
Incyte Corporation $23.7108/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 745806695 CMS
GENZYME CORPORATION $19.9707/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 744143387 CMS
Clovis Oncology, Inc. $23.8707/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 722233381 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.