Has Brian Koffman received payments from drug or device companies?

Yes. Drug and device makers reported $94,434 in general payments to Brian Koffman across 63 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Brian Koffman did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Brian Koffman come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Brian Koffman

Family Medicine · Diamond Bar, CANPI 1326049164

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $57,472 of the $94,434 with a category attached, or 60.9%. 16 manufacturers reported payments, led by AbbVie at 38.1% of the total. Among family medicine clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$94,434in general payments, 2019–2025

Across 63 payments — averaging $1498.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

AbbVie$36K
Eli Lilly$17K
Bristol Myers Squibb$12K
Verastem, Inc.$6K
Lilly USA, LLC$5K
AstraZeneca$4K
plus $14K from 10 others

$3,226in research payments, 2019–2025

Across 4 payments — averaging $806.45 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

F. Hoffmann-la Roche AG$3K

What the payments were for

Consulting fees$57,47261%
Speaking & faculty fees$5,1785%
Travel & lodging$31,05233%
Food & beverage$7321%

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
AbbVie	20	$35,986
Eli Lilly	4	$17,188
Bristol Myers Squibb	4	$12,227
Verastem, Inc.	2	$6,144
Lilly USA, LLC	7	$4,825
AstraZeneca	12	$4,373
Janssen Scientific Affairs, LLC	2	$4,340
Janssen Research & Development, LLC	2	$3,245
Novartis Pharma AG	1	$2,920
Idorsia Pharmaceuticals US Inc	1	$1,103
Johnson & Johnson	1	$1,095
Adaptive Biotechnologies Corporation	2	$766
Amgen	1	$107
Janssen Global Services, LLC	2	$84
Sanofi Pasteur Inc.	1	$20
Pfizer	1	$11

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

How this compares

$94,434 in reported general payments places this provider in the 95th percentile of 10,533 family medicine providers in California.

See all family medicine providers in California →

Other family medicine in Diamond Bar

Sherly SoleimanEncino$1.2M
Pamela KushnerLos Angeles$1.2M
Sujata NarayanStanford$1.2M
Jeffrey UngerChino$906K
Alexander RivkinLos Angeles$866K
Scott HowellLos Angeles$793K
Derrick ButlerLos Angeles$692K
Sandra CalmanMontara$589K
Anthony JonesOakland$377K
Amira AyadBakersfield$360K

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Identity: NPPES NPI Registry, July 2026.

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