Has Ashwin Ramayya, MD received payments from drug or device companies?

Yes. Drug and device makers reported $10,485 in general payments to Ashwin Ramayya, MD across 34 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 Ashwin Ramayya, 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 Ashwin Ramayya, 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.

Ashwin Ramayya, MD

Neurological Surgery · Stanford, CANPI 1992150205

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $7,609 of the $10,485 with a category attached, or 72.6%. Biotronik NRO, Inc. accounts for 83.2% of it on its own, with 8 other manufacturers making up the rest. 2025 is the largest year on record at $9,566, more than ten times the $207 reported in 2022.

$10,485in general payments, 2019–2025

Across 34 payments — averaging $308.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Biotronik NRO, Inc.$9K
Boston Scientific$978
Insightec,inc$185
Nevro Corp.$164
Livanova USA, Inc.$138
AstraZeneca$117
plus $182 from 3 others

What the payments were for

Consulting fees$7,60973%
Travel & lodging$8188%
Food & beverage$2,05720%

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
Biotronik NRO, Inc.	11	$8,720
Boston Scientific	12	$978
Insightec,inc	2	$185
Nevro Corp.	2	$164
Livanova USA, Inc.	2	$138
AstraZeneca	1	$117
Medtronic	2	$105
Microtransponder, Inc.	1	$45
Kls-martin L.p.	1	$32

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.

Prospera$8,141
GENERAL DBS$414
Senza$136
ANDEXXA$117
Exablate$117
VNS THERAPY SENTIVA MODEL 1000 GENERATOR$116

How this compares

$10,485 in reported general payments places this provider in the 65th percentile of 773 neurological surgery providers in California.

See all neurological surgery providers in California →

Medicare billing

Part B allowed, 2024

$62,382

Medicare patients

131

Services billed

286

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 Stanford

Stephen RyuStanford$847K
Stefan MindeaStanford$615K
Michael LimStanford$325K
Gerald GrantStanford$254K
John RatliffStanford$223K
John AdlerStanford$205K
Christopher AmesSan Francisco$7.1M
Larry KhooLos Angeles$2.8M
Samy AbdouSan Diego$2.4M
Bret AbshireMurrieta$2.3M

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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