Has Aaron Lewis, MD received payments from drug or device companies?

Yes. Drug and device makers reported $10,002 in general payments to Aaron Lewis, MD across 33 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 Aaron Lewis, 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 Aaron Lewis, 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.

Aaron Lewis, MD

Surgical Oncology · South Pasadena, CANPI 1053542100

Payments from drug & device makers

What this record shows

This record is dominated by education: $6,072 of the $10,002 with a category attached, or 60.7%. Intuitive Surgical accounts for 88.1% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2022 at $4,191 and has fallen 77.3% since, to $952 in 2025.

$10,002in general payments, 2019–2025

Across 33 payments — averaging $303.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Intuitive Surgical$9K
Integra Lifesciences Corporation$952
GSK$65
Amgen$59
Novartis$44
Johnson & Johnson$32
plus $40 from 2 others

What the payments were for

Travel & lodging$2,28123%
Food & beverage$6977%
Education$6,07261%
Other$95210%

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	22	$8,811
Integra Lifesciences Corporation	2	$952
GSK	1	$65
Amgen	2	$59
Novartis	2	$44
Johnson & Johnson(2 entities)	2	$32
Exelixis Inc.	1	$20
E.r. Squibb & Sons, L.L.C.	1	$20

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

$10,002 in reported general payments places this provider in the 75th percentile of 209 surgical oncology providers in California.

See all surgical oncology providers in California →

Medicare billing

Part B allowed, 2024

$307,637

Medicare patients

298

Services billed

921

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.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
CreonLipase/Protease/Amylase	37	$34,926
Neomycin Sulfate	14	$65
Metronidazole	19	$17

Paid to pharmacies, not to this prescriber.

Other surgical oncology in South Pasadena

Afshin BahadorSan Diego$701K
Amir FathiFresno$255K
Alexander ChristSanta Monica$239K
Yanghee WooDuarte$131K
Michael BouvetSan Diego$118K
Yuman FongDuarte$87K
Ronald HurstLos Angeles$76K
Jason Sicklickla Jolla$69K
Mohammed Al-TemimiSan Jose$39K
Gagandeep SinghDuarte$38K

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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