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 · PY2021 · Entire year

$4,875.82

247 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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $4,676.42 245
Long term medical supply or device loan $199.40 2

By paying entity

PY2021 · entire year · sorted by reported total

Paying entityAmountRecords
Novartis Pharmaceuticals Corporation $622.60 29
E.R. Squibb & Sons, L.L.C. $544.52 33
AstraZeneca Pharmaceuticals LP $450.98 17
Alexion Pharmaceuticals, Inc. $306.57 9
Celgene Corporation $299.95 13
Amgen Inc. $261.69 17
Incyte Corporation $222.42 13
Pharmacyclics LLC, An AbbVie Company $192.90 8
GENZYME CORPORATION $148.36 9
PFIZER INC. $128.78 7
PUMA BIOTECHNOLOGY, INC. $126.66 5
Genentech USA, Inc. $111.57 8
GlaxoSmithKline, LLC. $106.93 5
Taiho Oncology, Inc. $99.49 4
Merck Sharp & Dohme Corporation $94.64 6
Lilly USA, LLC $79.98 5
Janssen Biotech, Inc. $69.37 4
Bayer HealthCare Pharmaceuticals Inc. $67.37 4
EISAI INC. $67.21 4
ARRAY BIOPHARMA INC $59.97 4
Daiichi Sankyo Inc. $58.66 3
Dendreon Pharmaceuticals LLC $55.88 2
TerSera Therapeutics LLC $53.57 2
EMD Serono, Inc. $49.09 3
Acrotech Biopharma LLC $45.99 3
Regeneron Healthcare Solutions, Inc. $44.01 2
Alnylam Pharmaceuticals Inc. $41.89 2
Epizyme, Inc., $41.32 2
Karyopharm Therapeutics Inc. $40.92 2
Sobi, Inc $40.46 2
Ipsen Biopharmaceuticals, Inc $38.52 2
Deciphera Pharmaceuticals Inc. $36.39 2
Exelixis Inc. $29.82 2
Myovant Sciences Inc. $28.97 2
Seagen Inc. $26.59 1
Dova Pharmaceuticals $25.20 2
Novocure Inc. $22.57 1
Astellas Pharma US Inc $20.20 1
Kite Pharma, Inc. $19.74 1
Foundation Medicine, Inc. $18.21 1
Gilead Sciences, Inc. $17.12 1
EUSA Pharma (US) LLC $16.77 1
GE HEALTHCARE $16.07 1
Boehringer Ingelheim Pharmaceuticals, Inc. $14.72 1
Takeda Pharmaceuticals U.S.A., Inc. $11.18 1

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

247 matching records · $4,875.82 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 247 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 247.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Genentech USA, Inc. $2.0412/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835893623 CMS
Genentech USA, Inc. $18.2712/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835893625 CMS
Lilly USA, LLC $13.5512/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818979985 CMS
Novartis Pharmaceuticals Corporation $14.5412/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017077 CMS
Novartis Pharmaceuticals Corporation $99.7012/16/2021 Long term medical supply or device loan No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017081 CMS
Pharmacyclics LLC, An AbbVie Company $27.2912/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012283 CMS
Amgen Inc. $5.1312/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825190825 CMS
Celgene Corporation $23.1512/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783696815 CMS
Incyte Corporation $9.9212/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539945 CMS
Incyte Corporation $9.5112/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539941 CMS
EMD Serono, Inc. $20.6812/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026849147415 CMS
Taiho Oncology, Inc. $24.6412/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843381339 CMS
AstraZeneca Pharmaceuticals LP $19.1812/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026830118895 CMS
Seagen Inc. $26.5912/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832171147 CMS
Pharmacyclics LLC, An AbbVie Company $22.0512/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012281 CMS
E.R. Squibb & Sons, L.L.C. $8.3611/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783511963 CMS
Incyte Corporation $20.6411/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539935 CMS
Janssen Biotech, Inc. $20.3311/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788112149 CMS
Epizyme, Inc., $19.4211/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832341225 CMS
Novocure Inc. $22.5711/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026823636199 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $14.7211/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026763604026 CMS
E.R. Squibb & Sons, L.L.C. $18.0611/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783511955 CMS
Novartis Pharmaceuticals Corporation $14.5411/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017069 CMS
Celgene Corporation $23.1411/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783696813 CMS
Novartis Pharmaceuticals Corporation $17.4311/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017073 CMS
Lilly USA, LLC $20.1711/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818989683 CMS
Amgen Inc. $2.9111/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825190817 CMS
GENZYME CORPORATION $13.4811/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843483939 CMS
Incyte Corporation $23.3611/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539915 CMS
Novartis Pharmaceuticals Corporation $2.7611/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017065 CMS
Pharmacyclics LLC, An AbbVie Company $26.0911/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781012279 CMS
Daiichi Sankyo Inc. $21.6010/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026836328069 CMS
Lilly USA, LLC $15.5910/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818979989 CMS
PFIZER INC. $16.2310/25/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833207909 CMS
AstraZeneca Pharmaceuticals LP $20.6610/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829899885 CMS
AstraZeneca Pharmaceuticals LP $22.9210/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829875897 CMS
E.R. Squibb & Sons, L.L.C. $19.8410/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783511835 CMS
Bayer HealthCare Pharmaceuticals Inc. $20.0710/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026789066529 CMS
Celgene Corporation $23.1510/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783696811 CMS
Foundation Medicine, Inc. $18.2110/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799851583 CMS
E.R. Squibb & Sons, L.L.C. $17.8410/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783511947 CMS
PFIZER INC. $24.6910/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833207913 CMS
Novartis Pharmaceuticals Corporation $15.4510/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017049 CMS
Novartis Pharmaceuticals Corporation $23.4010/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017053 CMS
AstraZeneca Pharmaceuticals LP $13.5410/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829718029 CMS
Novartis Pharmaceuticals Corporation $14.4110/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017061 CMS
GENZYME CORPORATION $17.6310/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843483927 CMS
Incyte Corporation $18.9809/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539923 CMS
Incyte Corporation $13.2709/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835539901 CMS
Novartis Pharmaceuticals Corporation $17.4209/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813017057 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.