Has Ross Wiedemann, MD received payments from drug or device companies?

Yes. Drug and device makers reported $1,213 in general payments to Ross Wiedemann, MD across 36 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 Ross Wiedemann, 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 Ross Wiedemann, 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.

Ross Wiedemann, MD

Psychiatry · Bozeman, MTNPI 1437713385

Payments from drug & device makers

What this record shows

Almost everything reported here is food and beverage — 100.0% of the total across 36 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 7 manufacturers reported payments, led by Alkermes, Inc. at 45.7% of the total. Reporting peaked in 2021 at $577 and has fallen 96.7% since, to $19 in 2024.

$1,213in general payments, 2019–2025

Across 36 payments — averaging $33.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Alkermes, Inc.$554
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$294
Teva Pharmaceuticals USA, Inc.$145
Otsuka America Pharmaceutical, Inc.$141
Lundbeck LLC$30
AbbVie$27
plus $22 from 1 others

What the payments were for

Food & beverage$1,213100%

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
Alkermes, Inc.	15	$554
ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)	5	$294
Teva Pharmaceuticals USA, Inc.	3	$145
Otsuka America Pharmaceutical, Inc.	8	$141
Lundbeck LLC	2	$30
AbbVie	2	$27
Takeda Pharmaceuticals U.S.A., Inc.	1	$22

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

$1,213 in reported general payments places this provider in the 85th percentile of 82 psychiatry providers in Montana.

See all psychiatry providers in Montana →

Medicare billing

Part B allowed, 2024

$21,455

Medicare patients

Services billed

191

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
Lurasidone Hcl	25	$12,742
Olanzapine	19	$1,766
Vilazodone Hcl	13	$1,291
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine	13	$1,219
Duloxetine Hcl	31	$813
Lamotrigine	64	$728
Bupropion XlBupropion Hcl	50	$617
Gabapentin	55	$536
Liothyronine Sodium	19	$463
Aripiprazole	30	$434
Clonazepam	48	$429
Buspirone Hcl	40	$425
Guanfacine Hcl ErGuanfacine Hcl	22	$376
Mirtazapine	46	$312
Trazodone Hcl	38	$273

Paid to pharmacies, not to this prescriber.

Other psychiatry in Bozeman

Jami EschlerBozeman$332
Ryan CoramBozeman$165
Urooj SaeedBozeman$79
Troy StilesBillings$221K
Erin AmatoBillings$88K
Reza Hosseini GhomiBillings$6K
Michael NewmanWhitefish$5K
Justin KunzBillings$4K
Andrew ParsonsKalispell$4K
Michael TheinMissoula$4K

See the full list for Montana →

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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