Has Phyllis Henderson, MD received payments from drug or device companies?

Yes. Drug and device makers reported $566 in general payments to Phyllis Henderson, MD across 27 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 Phyllis Henderson, 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 Phyllis Henderson, 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.

Phyllis Henderson, MD

Addiction Medicine · Yakima, WANPI 1487863999

Payments from drug & device makers

What this record shows

Almost everything reported here is food and beverage — 100.0% of the total across 27 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 10 manufacturers reported payments, led by Otsuka America Pharmaceutical, Inc. at 25.5% of the total. Reporting peaked in 2023 at $304 and has fallen 68.2% since, to $97 in 2025.

$566in general payments, 2019–2025

Across 27 payments — averaging $20.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Otsuka America Pharmaceutical, Inc.$144
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$124
Johnson & Johnson$69
Axsome Therapeutics, Inc.$67
Alkermes, Inc.$45
Supernus Pharmaceuticals, Inc.$38
plus $78 from 4 others

What the payments were for

Food & beverage$566100%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

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
Otsuka America Pharmaceutical, Inc.	2	$144
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)	8	$124
Johnson & Johnson	4	$69
Axsome Therapeutics, Inc.	3	$67
Alkermes, Inc.	3	$45
Supernus Pharmaceuticals, Inc.	2	$38
Teva Pharmaceuticals USA, Inc.	2	$32
Neurocrine Biosciences, Inc.	1	$17
Seqirus USA Inc	1	$15
Eisai Inc.	1	$14

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.

ABILIFY ASIMTUFII$122
ABILIFY MAINTENA$122

How this compares

$566 in reported general payments places this provider in the 75th percentile of 39 addiction medicine providers in Washington.

See all addiction medicine providers in Washington →

Medicare billing

Part B allowed, 2024

$5,544

Medicare patients

Services billed

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
Bupropion XlBupropion Hcl	32	$5,733
Quetiapine Fumarate	174	$3,687
Paliperidone ErPaliperidone	33	$3,490
Prazosin Hcl	106	$2,696
Aripiprazole	95	$2,545
Duloxetine Hcl	149	$2,223
Mirtazapine	59	$1,425
Divalproex Sodium ErDivalproex Sodium	46	$1,389
Haloperidol Decanoate	21	$1,018
Sertraline Hcl	62	$926
Trazodone Hcl	93	$913
Oxcarbazepine	27	$909
Buspirone Hcl	38	$891
Hydroxyzine Hcl	15	$474
Benztropine Mesylate	35	$432

Paid to pharmacies, not to this prescriber.

Other addiction medicine in Yakima

Gillian ZuckermanYakima$104
Mark MurphyGig Harbor$22K
John PatzMonroe$12K
Joy Ruiz-MollestonLakewood$6K
Cirilo AdaoLakewood$3K
David CundiffLong Beach$977
Jeffrey AllgaierRichland$762
Tarek HaidarTacoma$758
Elina ChernyakClarkston$612
Kevin FeigBellingham$493

See the full list for Washington →

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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