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 July 26, 2026. 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 payment	Amount	Records
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 entity	Amount	Records
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

Page 1 of 5; records 1–50 of 247 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 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, PY2021; 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 1 of 5; records 1–50 of 247 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1326023979?year=2021&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

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, PY2021; 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 1 of 5; records 1–50 of 247 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1326023979?year=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7: IndustryPayments. (2026). BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091. General Payments, PY2021; 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 1 of 5; records 1–50 of 247 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=2021&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook: BRIAN JOHN LEBERTHON, NPI 1326023979, CMS profile ID 241091, IndustryPayments, General Payments, PY2021; 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 1 of 5; records 1–50 of 247 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1326023979?year=2021&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

General Payments only. Research Payments and Ownership/Investment Interests are separate datasets and are not included.

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

Centers for Medicare & Medicaid Services, Open Payments

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.

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.

IndustryPayments.org is not a consumer reporting agency as defined by the Fair Credit Reporting Act. Do not use this site to determine any person's eligibility for employment, credentialing, insurance, credit, housing, or any other purpose covered by the FCRA.

Methodology: https://industrypayments.org/methodology

Payment records · PY2021

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

Reporting company Nature of payment

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 November 5, 2026 (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 entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
Genentech USA, Inc.	$2.04	12/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835893623	CMS
Genentech USA, Inc.	$18.27	12/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835893625	CMS
Lilly USA, LLC	$13.55	12/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	818979985	CMS
Novartis Pharmaceuticals Corporation	$14.54	12/16/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017077	CMS
Novartis Pharmaceuticals Corporation	$99.70	12/16/2021	Long term medical supply or device loan	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017081	CMS
Pharmacyclics LLC, An AbbVie Company	$27.29	12/15/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	781012283	CMS
Amgen Inc.	$5.13	12/14/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190825	CMS
Celgene Corporation	$23.15	12/14/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783696815	CMS
Incyte Corporation	$9.92	12/14/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539945	CMS
Incyte Corporation	$9.51	12/13/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539941	CMS
EMD Serono, Inc.	$20.68	12/11/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	849147415	CMS
Taiho Oncology, Inc.	$24.64	12/09/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	843381339	CMS
AstraZeneca Pharmaceuticals LP	$19.18	12/07/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	830118895	CMS
Seagen Inc.	$26.59	12/06/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	832171147	CMS
Pharmacyclics LLC, An AbbVie Company	$22.05	12/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	781012281	CMS
E.R. Squibb & Sons, L.L.C.	$8.36	11/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511963	CMS
Incyte Corporation	$20.64	11/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539935	CMS
Janssen Biotech, Inc.	$20.33	11/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	788112149	CMS
Epizyme, Inc.,	$19.42	11/29/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	832341225	CMS
Novocure Inc.	$22.57	11/23/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	823636199	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$14.72	11/22/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	763604026	CMS
E.R. Squibb & Sons, L.L.C.	$18.06	11/19/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511955	CMS
Novartis Pharmaceuticals Corporation	$14.54	11/18/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017069	CMS
Celgene Corporation	$23.14	11/17/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783696813	CMS
Novartis Pharmaceuticals Corporation	$17.43	11/16/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017073	CMS
Lilly USA, LLC	$20.17	11/12/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	818989683	CMS
Amgen Inc.	$2.91	11/04/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190817	CMS
GENZYME CORPORATION	$13.48	11/04/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	843483939	CMS
Incyte Corporation	$23.36	11/03/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539915	CMS
Novartis Pharmaceuticals Corporation	$2.76	11/02/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017065	CMS
Pharmacyclics LLC, An AbbVie Company	$26.09	11/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	781012279	CMS
Daiichi Sankyo Inc.	$21.60	10/29/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	836328069	CMS
Lilly USA, LLC	$15.59	10/25/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	818979989	CMS
PFIZER INC.	$16.23	10/25/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	833207909	CMS
AstraZeneca Pharmaceuticals LP	$20.66	10/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829899885	CMS
AstraZeneca Pharmaceuticals LP	$22.92	10/19/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829875897	CMS
E.R. Squibb & Sons, L.L.C.	$19.84	10/18/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511835	CMS
Bayer HealthCare Pharmaceuticals Inc.	$20.07	10/17/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	789066529	CMS
Celgene Corporation	$23.15	10/15/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783696811	CMS
Foundation Medicine, Inc.	$18.21	10/12/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	799851583	CMS
E.R. Squibb & Sons, L.L.C.	$17.84	10/11/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511947	CMS
PFIZER INC.	$24.69	10/08/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	833207913	CMS
Novartis Pharmaceuticals Corporation	$15.45	10/06/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017049	CMS
Novartis Pharmaceuticals Corporation	$23.40	10/06/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017053	CMS
AstraZeneca Pharmaceuticals LP	$13.54	10/05/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829718029	CMS
Novartis Pharmaceuticals Corporation	$14.41	10/05/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017061	CMS
GENZYME CORPORATION	$17.63	10/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	843483927	CMS
Incyte Corporation	$18.98	09/30/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539923	CMS
Incyte Corporation	$13.27	09/29/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539901	CMS
Novartis Pharmaceuticals Corporation	$17.42	09/27/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017057	CMS

By program year

All program years on this page · sorted by year

Program year	Amount	Records
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

Source files: Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.