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

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 1–50 of 251.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Alexion Pharmaceuticals, Inc. $21.4212/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026915258455 CMS
E.R. Squibb & Sons, L.L.C. $16.0512/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932605387 CMS
Merck Sharp & Dohme LLC $12.0212/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944588161 CMS
Novartis Pharmaceuticals Corporation $83.3312/15/2022 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026893881103 CMS
ARRAY BIOPHARMA INC $17.7712/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949508571 CMS
Daiichi Sankyo Inc. $22.2312/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026930836183 CMS
Amgen Inc. $33.2912/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939945019 CMS
AstraZeneca Pharmaceuticals LP $14.2312/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026915864677 CMS
Janssen Biotech, Inc. $26.4512/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606613 CMS
ABBVIE INC. $16.4912/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026893170015 CMS
AVEO Pharmaceuticals, Inc. $21.7612/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026950102353 CMS
AstraZeneca Pharmaceuticals LP $20.3512/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026914874187 CMS
GENZYME CORPORATION $125.0012/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938823821 CMS
Pharmacyclics LLC, an AbbVie Company $24.6911/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890343047 CMS
Amgen Inc. $7.2111/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939459727 CMS
GENZYME CORPORATION $17.0211/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938823819 CMS
Lilly USA, LLC $0.1711/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026917917489 CMS
Lilly USA, LLC $16.0011/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026917918689 CMS
Seagen Inc. $15.2311/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026904104487 CMS
E.R. Squibb & Sons, L.L.C. $18.7111/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932605361 CMS
Novartis Pharmaceuticals Corporation $83.3311/18/2022 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026893881099 CMS
Janssen Biotech, Inc. $26.4111/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606607 CMS
Gilead Sciences, Inc. $22.9411/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026929485565 CMS
E.R. Squibb & Sons, L.L.C. $21.0911/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932605367 CMS
Janssen Scientific Affairs, LLC $102.1811/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026887189259 CMS
PFIZER INC. $20.5311/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949452223 CMS
Karyopharm Therapeutics Inc. $17.7211/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026946513677 CMS
Merck Sharp & Dohme LLC $16.9011/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026944589175 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.8611/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026955698313 CMS
Incyte Corporation $29.1811/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943015915 CMS
Janssen Biotech, Inc. $27.7911/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606603 CMS
Janssen Biotech, Inc. $18.7010/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606627 CMS
Novartis Pharmaceuticals Corporation $20.9610/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026893881087 CMS
Amgen Inc. $8.1110/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939459725 CMS
AstraZeneca Pharmaceuticals LP $125.0010/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026914840353 CMS
Mylan Institutional Inc. $17.3410/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026963953075 CMS
PharmaEssentia USA Corporation $23.8610/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026941279179 CMS
PFIZER INC. $15.9810/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949391927 CMS
GENZYME CORPORATION $22.1310/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938823799 CMS
PFIZER INC. $3.1910/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949389501 CMS
AstraZeneca Pharmaceuticals LP $22.1110/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026915672365 CMS
AstraZeneca Pharmaceuticals LP $22.2210/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026915833049 CMS
Bayer HealthCare Pharmaceuticals Inc. $22.5110/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026930600571 CMS
Janssen Biotech, Inc. $10.7010/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606619 CMS
E.R. Squibb & Sons, L.L.C. $124.5710/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932605421 CMS
Daiichi Sankyo Inc. $19.0010/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026930863679 CMS
Taiho Oncology, Inc. $22.1210/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026924015891 CMS
E.R. Squibb & Sons, L.L.C. $23.3110/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932605351 CMS
Amgen Inc. $6.9310/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939459723 CMS
Janssen Biotech, Inc. $13.6510/06/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885606623 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.