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 3 of 5; records 101–150 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 3 of 5; records 101–150 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&page=3#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 3 of 5; records 101–150 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&page=3#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 3 of 5; records 101–150 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&page=3#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 3 of 5; records 101–150 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&page=3#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 101–150 of 247.

Paying entity	Amount	Date	Nature of payment	Dispute status	Publication flags	Published	Record ID	Source
GENZYME CORPORATION	$24.71	07/22/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	843483899	CMS
Amgen Inc.	$25.61	07/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	826305305	CMS
Amgen Inc.	$13.27	07/20/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190809	CMS
Merck Sharp & Dohme Corporation	$12.56	07/19/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	848705651	CMS
AstraZeneca Pharmaceuticals LP	$17.88	07/16/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	830278791	CMS
AstraZeneca Pharmaceuticals LP	$23.31	07/15/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829736979	CMS
Novartis Pharmaceuticals Corporation	$15.50	07/13/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017021	CMS
Novartis Pharmaceuticals Corporation	$21.09	07/12/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017025	CMS
Incyte Corporation	$24.66	07/09/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539879	CMS
Pharmacyclics LLC, An AbbVie Company	$23.10	07/06/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	781012273	CMS
ARRAY BIOPHARMA INC	$8.86	07/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	833183085	CMS
ARRAY BIOPHARMA INC	$23.83	07/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	833186197	CMS
PUMA BIOTECHNOLOGY, INC.	$25.71	06/29/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	834087663	CMS
Novartis Pharmaceuticals Corporation	$13.70	06/28/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017017	CMS
GlaxoSmithKline, LLC.	$27.27	06/24/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	802881219	CMS
GENZYME CORPORATION	$9.57	06/23/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	843483893	CMS
PFIZER INC.	$19.76	06/23/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	832569317	CMS
Amgen Inc.	$9.68	06/22/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190805	CMS
Janssen Biotech, Inc.	$19.50	06/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	788112151	CMS
E.R. Squibb & Sons, L.L.C.	$3.91	06/18/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511781	CMS
Karyopharm Therapeutics Inc.	$19.67	06/17/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	845783955	CMS
Merck Sharp & Dohme Corporation	$18.36	06/16/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	848700763	CMS
E.R. Squibb & Sons, L.L.C.	$18.61	06/15/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511767	CMS
Alexion Pharmaceuticals, Inc.	$27.76	06/14/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783140865	CMS
Celgene Corporation	$22.73	06/11/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783696791	CMS
E.R. Squibb & Sons, L.L.C.	$12.28	06/10/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511775	CMS
AstraZeneca Pharmaceuticals LP	$23.62	06/09/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	830021569	CMS
E.R. Squibb & Sons, L.L.C.	$13.26	06/08/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511779	CMS
PFIZER INC.	$19.92	06/07/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	832657787	CMS
Incyte Corporation	$18.11	06/05/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835539865	CMS
Novartis Pharmaceuticals Corporation	$17.09	06/03/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017009	CMS
Alexion Pharmaceuticals, Inc.	$3.25	06/02/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783140861	CMS
Alexion Pharmaceuticals, Inc.	$16.34	06/02/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783140863	CMS
Dendreon Pharmaceuticals LLC	$26.81	06/02/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	851428905	CMS
Lilly USA, LLC	$17.56	06/01/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	818982939	CMS
Amgen Inc.	$25.58	05/28/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190829	CMS
AstraZeneca Pharmaceuticals LP	$125.00	05/27/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829568685	CMS
Merck Sharp & Dohme Corporation	$12.83	05/27/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	848412473	CMS
Amgen Inc.	$6.03	05/26/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	825190801	CMS
Myovant Sciences Inc.	$13.44	05/26/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	834965047	CMS
PUMA BIOTECHNOLOGY, INC.	$25.55	05/26/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	834086191	CMS
GlaxoSmithKline, LLC.	$27.27	05/25/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	803111929	CMS
E.R. Squibb & Sons, L.L.C.	$12.20	05/24/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511761	CMS
E.R. Squibb & Sons, L.L.C.	$1.01	05/24/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	783511763	CMS
Novartis Pharmaceuticals Corporation	$13.91	05/24/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	813017013	CMS
Pharmacyclics LLC, An AbbVie Company	$29.03	05/24/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	781012271	CMS
AstraZeneca Pharmaceuticals LP	$23.62	05/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	829460387	CMS
Janssen Biotech, Inc.	$15.16	05/21/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	788112145	CMS
Genentech USA, Inc.	$19.42	05/20/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835893619	CMS
Genentech USA, Inc.	$1.84	05/20/2021	Food and Beverage	No dispute reported	Delay: No Change: UNCHANGED	06/30/2026	835893621	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.