Has Isaac Yang, MD received payments from drug or device companies?

Yes. Drug and device makers reported $79,381 in general payments to Isaac Yang, MD across 160 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 Isaac Yang, 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 Isaac Yang, 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.

Isaac Yang, MD

Neurological Surgery · San Francisco, CANPI 1669599197

Payments from drug & device makers

What this record shows

The money is spread across several categories — education (48.0%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. Baxter Healthcare accounts for 74.1% of it on its own, with 21 other manufacturers making up the rest. Reporting peaked in 2024 at $36,380 and has fallen 61.9% since, to $13,849 in 2025.

$79,381in general payments, 2019–2025

Across 160 payments — averaging $496.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Baxter Healthcare$59K
Medtronic$5K
Brainlab, Inc.$2K
GT Medical Technologies, Inc$2K
Omniscient Neurotechnology America Ltd$2K
GS Solutions, Inc.$2K
plus $7K from 16 others

$29,500in research payments, 2019–2025

Across 1 payment — averaging $29,500 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.

Stryker$30K

What the payments were for

Consulting fees$14,08518%
Speaking & faculty fees$10,53013%
Travel & lodging$8,82911%
Food & beverage$7,86810%
Education$38,07048%

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
Baxter Healthcare	29	$58,818
Medtronic(2 entities)	45	$5,432
Brainlab, Inc.	16	$2,375
GT Medical Technologies, Inc	6	$1,999
Omniscient Neurotechnology America Ltd	5	$1,951
GS Solutions, Inc.	5	$1,771
Stryker	15	$1,481
Davol Inc.	1	$1,350
Orthofix Medical, Inc.	7	$1,227
Monteris Medical Corporation	6	$825
Zap Surgical Systems, Inc.	4	$757
Boston Scientific	4	$286
NICO Corporation	1	$280
Johnson & Johnson(2 entities)	5	$170
Xoran Technologies LLC	2	$168
Integra Lifesciences Corporation	1	$136
BK Medical Holding Company Inc.	1	$130
Globus Medical	1	$63
Viseon, Inc.	2	$50
Aesculap, Inc.	1	$48
Elekta, Inc.	1	$33
Lemaitre Vascular, Inc.	2	$31

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

$79,381 in reported general payments places this provider in the 85th percentile of 773 neurological surgery providers in California.

See all neurological surgery providers in California →

Medicare billing

Part B allowed, 2024

$54,743

Medicare patients

Services billed

116

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 neurological surgery in San Francisco

Christopher AmesSan Francisco$7.1M
Praveen MummaneniSan Francisco$1.1M
Lee TanSan Francisco$682K
Jang YoonSan Francisco$227K
Larry KhooLos Angeles$2.8M
Samy AbdouSan Diego$2.4M
Bret AbshireMurrieta$2.3M
William TaylorSan Diego$2.1M
Tooraj GravoriEncino$2M
Ali MesiwalaRancho Cucamonga$1.5M

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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