Has Margaret Ferris, MD received payments from drug or device companies?

Yes. Drug and device makers reported $17,908 in general payments to Margaret Ferris, MD across 55 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 Margaret Ferris, 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 Margaret Ferris, 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.

Margaret Ferris, MD

Clinical Neurophysiology · Stanford, CANPI 1477917565

Payments from drug & device makers

What this record shows

This record is dominated by speaking fees: $12,475 of the $17,908 with a category attached, or 69.7%. Boston Scientific accounts for 76.9% of it on its own, with 6 other manufacturers making up the rest. 2025 is the largest year on record at $16,217, more than ten times the $51 reported in 2022.

$17,908in general payments, 2019–2025

Across 55 payments — averaging $325.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Boston Scientific$14K
Bayer$2K
Orphalan Inc$2K
Medtronic$219
Insightec,inc$170
AbbVie$43
plus $27 from 1 others

What the payments were for

Consulting fees$4503%
Speaking & faculty fees$12,47570%
Travel & lodging$3,04917%
Food & beverage$1,93411%

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
Boston Scientific	33	$13,776
Bayer	11	$1,874
Orphalan Inc	1	$1,800
Medtronic	5	$219
Insightec,inc	2	$170
AbbVie	2	$43
Amgen	1	$27

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

$17,908 in reported general payments places this provider in the 85th percentile of 49 clinical neurophysiology providers in California.

See all clinical neurophysiology providers in California →

Medicare billing

Part B allowed, 2024

$96,967

Medicare patients

221

Services billed

972

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
NuplazidPimavanserin Tartrate	23	$125,249
RytaryCarbidopa/Levodopa	64	$104,278
MyrbetriqMirabegron	13	$10,212
Carbidopa-LevodopaCarbidopa/Levodopa	204	$8,234
Rasagiline Mesylate	22	$4,070
Entacapone	11	$3,286
Carbidopa-Levodopa ErCarbidopa/Levodopa	70	$2,894
AmantadineAmantadine Hcl	46	$2,847
Rivastigmine	11	$2,315
Midodrine Hcl	27	$1,776
Propranolol Hcl ErPropranolol Hcl	13	$1,489
RivastigmineRivastigmine Tartrate	14	$939
Primidone	39	$907
Quetiapine Fumarate	33	$683
Clonazepam	75	$503

Paid to pharmacies, not to this prescriber.

Other clinical neurophysiology in Stanford

Christopher LockStanford$159K
Srikanth MuppidiStanford$150K
Mitchell MiglisStanford$51K
Safwan JaradehStanford$34K
Kathleen PostonStanford$18K
Helen Bronte-StewartStanford$7K
Jaime LopezStanford$1K
Sungho ChoStanford$1K
Felix ChangStanford$974
Laurice YangStanford$924

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.

Is this you, or does something look wrong? →