Has Wilson Tsai, MD received payments from drug or device companies?

Yes. Drug and device makers reported $686,228 in general payments to Wilson Tsai, MD across 1,070 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 Wilson Tsai, 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 Wilson Tsai, 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.

Wilson Tsai, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) · Walnut Creek, CANPI 1609035666

Payments from drug & device makers

$686,228in general payments, 2019–2025

Across 1,070 payments — averaging $641.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Intuitive Surgical$380K
Johnson & Johnson$129K
Medical Device Business Services, Inc.$33K
Pinnacle Biologics, Inc$26K
Davol Inc.$24K
Ambu Inc.$24K
plus $70K from 33 others

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	490	$380,044
Johnson & Johnson(3 entities)	144	$129,312
Medical Device Business Services, Inc.	41	$32,787
Pinnacle Biologics, Inc	56	$26,254
Davol Inc.	147	$24,006
Ambu Inc.	13	$23,814
Noah Medical Corporation	18	$23,662
Ethicon Endo-surgery Inc.	12	$18,350
Body Vision Medical Inc.	14	$12,677
Concordia Laboratories Inc.	2	$3,500
Atricure, Inc.	60	$3,182
Mauna Kea Technologies, Inc.	3	$2,160
TELA Bio, Inc.	6	$1,344
BD	5	$986
Zimmer Biomet	9	$932
Janssen Research & Development, LLC	1	$672
Conmed Corporation	5	$342
Galvanize Therapeutics, Inc	3	$293
Olympus America Inc.	6	$279
Pulmonx Corporation	8	$247
Dilon Technologies, Inc.	2	$244
Siemens Medical Solutions USA, Inc.	1	$143
Teleflex LLC	2	$135
AstraZeneca	4	$133
Galderma Laboratories, L.p.	1	$128
E.r. Squibb & Sons, L.L.C.	1	$115
Novocure Inc.	1	$83
Covidien LP	3	$53
AbbVie	2	$53
Mimedx Group, Inc.	1	$45
Philips North America LLC	1	$43
Medtronic	1	$41
Hemosonics LLC	1	$32
Avanos Medical	1	$30
Laborie Medical Technologies Corp.	1	$29
On Target Laboratories, Inc	1	$28
Nevro Corp.	1	$18
Mallinckrodt Enterprises LLC	1	$16
Octapharma USA, Inc.	1	$16

How this compares

$686,228 in reported general payments places this provider in the 95th percentile of 546 thoracic surgery (cardiothoracic vascular surgery) providers in California.

See all thoracic surgery (cardiothoracic vascular surgery) providers in California →

Medicare billing

Part B allowed, 2024

$211,573

Medicare patients

219

Services billed

594

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 thoracic surgery (cardiothoracic vascular surgery) in Walnut Creek

Thomas FogartyPortola Valley$3.7M
Steven GundryPalm Springs$1.6M
Gregory FontanaThousand Oaks$1.4M
Gansevoort DunningtonSaint Helena$963K
Armin KiankhooySaint Helena$941K
Ara KlijianMurrieta$916K
Fernando FleischmanLos Angeles$901K
Michael FischbeinPalo Alto$899K
Jay LeeLos Angeles$856K
William HiesingerPalo Alto$815K

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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