Has Zachary Ryder, MD received payments from drug or device companies?

Yes. Drug and device makers reported $800 in general payments to Zachary Ryder, MD across 30 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 Zachary Ryder, 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 Zachary Ryder, 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.

Zachary Ryder, MD

Psychiatry · Lake Charles, LANPI 1942689211

Payments from drug & device makers

$800in general payments, 2019–2025

Across 30 payments — averaging $26.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

AbbVie$163
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$151
Otsuka America Pharmaceutical, Inc.$136
Teva Pharmaceuticals USA, Inc.$82
E.r. Squibb & Sons, L.L.C.$60
Alkermes, Inc.$56
plus $152 from 6 others

What the payments were for

Food & beverage$800100%

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
AbbVie	3	$163
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)	8	$151
Otsuka America Pharmaceutical, Inc.	2	$136
Teva Pharmaceuticals USA, Inc.	4	$82
E.r. Squibb & Sons, L.L.C.	3	$60
Alkermes, Inc.	3	$56
Johnson & Johnson	2	$45
Axsome Therapeutics, Inc.	1	$23
Indivior Inc.	1	$22
Noven Therapeutics, LLC	1	$21
Supernus Pharmaceuticals, Inc.	1	$20
Takeda Pharmaceuticals U.S.A., Inc.	1	$20

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.

VRAYLAR$125
REXULTI$111

How this compares

$800 in reported general payments places this provider in the 55th percentile of 474 psychiatry providers in Louisiana.

See all psychiatry providers in Louisiana →

Medicare billing

Part B allowed, 2024

$89,267

Medicare patients

182

Services billed

1,083

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
Mirtazapine	132	$2,195
Memantine Hcl	47	$1,973
RivastigmineRivastigmine Tartrate	50	$1,588
Paliperidone ErPaliperidone	12	$1,194
Trazodone Hcl	96	$1,104
Hydroxyzine Pamoate	34	$877
Duloxetine Hcl	83	$820
Olanzapine	50	$732
Gabapentin	44	$647
Quetiapine Fumarate	89	$614
Aripiprazole	14	$593
Risperidone	65	$569
Clonazepam	72	$535
Oxcarbazepine	18	$489
Fluoxetine Hcl	39	$407

Paid to pharmacies, not to this prescriber.

Other psychiatry in Lake Charles

Kashinath YadalamLake Charles$3.8M
Patrick HayesLake Charles$853K
David MurdockLake Charles$18K
Jayendra PatelLake Charles$13K
Guy BrannonShreveport$1.4M
Maria CruseThibodaux$522K
Larry WarnerBaton Rouge$495K
Gregory BrownShreveport$495K
Arwen PodestaNew Orleans$466K
Jasjit SinghShreveport$420K

See the full list for Louisiana →

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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