Has John Lam, MD received payments from drug or device companies?

Yes. Drug and device makers reported $9,351 in general payments to John Lam, MD across 51 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 John Lam, MD 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 John Lam, MD 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.

John Lam, MD

Trauma Surgery · Chico, CANPI 1174759955

Payments from drug & device makers

What this record shows

The money is spread across several categories — travel and lodging (36.1%), food and beverage and education — rather than concentrated in one kind of arrangement. 9 manufacturers reported payments, led by Intuitive Surgical at 46.3% of the total. Reporting peaked in 2024 at $5,067 and has fallen 76.0% since, to $1,216 in 2025.

$9,351in general payments, 2019–2025

Across 51 payments — averaging $183.35 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Intuitive Surgical$4K
Zimmer Biomet$3K
Aroa Biosurgery Incorporated$380
Kerecis Limited$341
Access Pro Medical, LLC$294
KCI USA, Inc.$286
plus $616 from 3 others

What the payments were for

Travel & lodging$3,37636%
Food & beverage$3,32536%
Education$2,65028%

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
Intuitive Surgical	12	$4,327
Zimmer Biomet	23	$3,107
Aroa Biosurgery Incorporated	3	$380
Kerecis Limited	2	$341
Access Pro Medical, LLC	2	$294
KCI USA, Inc.	4	$286
Polynovo North America LLC	2	$268
Smith+Nephew	2	$228
Portola Pharmaceuticals, LLC	1	$120

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

$9,351 in reported general payments places this provider in the 80th percentile of 119 trauma surgery providers in California.

See all trauma surgery providers in California →

Medicare billing

Part B allowed, 2024

$21,680

Medicare patients

Services billed

127

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Other trauma surgery in Chico

Alexander RiveronChico$5K
Fredrick CollinsChico$1K
Sebastian SchublOrange$480K
Antonio CoirinModesto$212K
Nicole KopariFresno$90K
Ruby SkinnerSanta Maria$66K
Jennifer HubbardFresno$26K
Amber JonesCastro Valley$19K
Kaushik MukherjeeLoma Linda$19K
Gudata HinikaParamount$18K

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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