Has Calvin Hansen, MD received payments from drug or device companies?

Yes. Drug and device makers reported $1,234 in general payments to Calvin Hansen, MD across 31 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 Calvin Hansen, 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 Calvin Hansen, 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.

Calvin Hansen, MD

Neurology · Des Moines, IANPI 1639157373

Payments from drug & device makers

What this record shows

This record is dominated by food and beverage: $1,107 of the $1,234 with a category attached, or 89.7%. 10 manufacturers reported payments, led by Biogen at 48.7% of the total. Reporting peaked in 2021 at $383 and has fallen 81.6% since, to $71 in 2025.

$1,234in general payments, 2019–2025

Across 31 payments — averaging $39.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Biogen$600
E.r. Squibb & Sons, L.L.C.$125
AbbVie$122
AstraZeneca$108
Genentech USA, Inc.$90
Novartis$89
plus $100 from 4 others

What the payments were for

Food & beverage$1,10790%
Education$12710%

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
Biogen	9	$600
E.r. Squibb & Sons, L.L.C.	1	$125
AbbVie	7	$122
AstraZeneca	1	$108
Genentech USA, Inc.	2	$90
Novartis	6	$89
TG Therapeutics, Inc.	2	$40
Braemar Manufacturing, LLC	1	$23
Kyowa Kirin, Inc.	1	$19
Biohaven Pharmaceuticals, Inc.	1	$18

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

$1,234 in reported general payments places this provider in the 60th percentile of 132 neurology providers in Iowa.

See all neurology providers in Iowa →

Medicare billing

Part B allowed, 2024

$6,159

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
AmpyraDalfampridine	13	$58,107
XcopriCenobamate	16	$17,074
Emgality PenGalcanezumab-Gnlm	12	$8,365
Dalfampridine ErDalfampridine	45	$4,540
Dimethyl Fumarate	13	$2,100
Baclofen	43	$751
Gabapentin	29	$552
AmantadineAmantadine Hcl	12	$216
Ropinirole Hcl	12	$143
Nortriptyline Hcl	12	$96

Paid to pharmacies, not to this prescriber.

Other neurology in Des Moines

Bruce HughesDes Moines$1.8M
Michael JacobyDes Moines$243K
Lynn RankinDes Moines$181K
Wendy ZadehDes Moines$134K
Paul BabikianDes Moines$107K
Mark PuricelliDes Moines$45K
Keith KohoutDes Moines$36K
Erik ArnesonDes Moines$10K
John WrightDes Moines$9K
Lynn StruckDes Moines$6K

See the full list for Iowa →

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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