Has William Slater, MD received payments from drug or device companies?

Yes. Drug and device makers reported $25,428 in general payments to William Slater, MD across 137 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 William Slater, 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 William Slater, 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.

William Slater, MD

Vascular & Interventional Radiology · Grand Rapids, MINPI 1710164819

Payments from drug & device makers

What this record shows

The money is spread across several categories — food and beverage (37.0%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. Inari Medical, Inc. accounts for 72.4% of it on its own, with 14 other manufacturers making up the rest. Reporting peaked in 2022 at $12,792 and has fallen 75.8% since, to $3,091 in 2025. Among vascular & interventional radiology clinicians in MI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$25,428in general payments, 2019–2025

Across 137 payments — averaging $185.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Inari Medical, Inc.$18K
Terumo Medical Corporation$2K
Medical Device Business Services, Inc.$1K
Stryker$990
Boston Scientific$614
Penumbra, Inc.$576
plus $2K from 9 others

What the payments were for

Consulting fees$8,00031%
Speaking & faculty fees$2,50010%
Travel & lodging$5,51522%
Food & beverage$9,41337%

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
Inari Medical, Inc.	73	$18,405
Terumo Medical Corporation	11	$1,551
Medical Device Business Services, Inc.	4	$1,183
Stryker	17	$990
Boston Scientific	6	$614
Penumbra, Inc.	5	$576
Medtronic	5	$462
Bard Peripheral Vascular, Inc.	4	$331
Sirtex Medical Inc	3	$291
Siemens Medical Solutions USA, Inc.	2	$260
Okami Medical, Inc.	2	$213
Trisalus Life Sciences, Inc.	1	$149
Cook Medical LLC	2	$140
Johnson & Johnson	1	$134
Biocompatibles, Inc.	1	$129

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.

FLOWTRIEVER CATHETER, S$16,937
CT THROMBECTOMY SYSTEM KIT$15,507
GLIDESHEATH SLENDER$1,234
FlowTriever$1,162
CERTUS 140 MICROWAVE ABLATION SYSTEM$1,093
ClotTriever$853
Indigo System$444
LOBO$198
MicroThermX Microwave Ablation System$162
KYPHON EXPRESS II KYPHOPAK TRAY$160
VENOVO$159
TRINAV INFUSION SYSTEM$149
HydroPearl$148
Azur CX Detachable$148
SPINEJACK$146
EMBOLD Fibered$146
IVS - IVAS$143
SIR-Spheres Microspheres$141
LAVA LES (Liquid Embolic System)$137
Emprint$135

How this compares

$25,428 in reported general payments places this provider in the 95th percentile of 118 vascular & interventional radiology providers in Michigan.

See all vascular & interventional radiology providers in Michigan →

Medicare billing

Part B allowed, 2024

$55,623

Medicare patients

670

Services billed

1,130

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.

Other vascular & interventional radiology in Grand Rapids

Michael KnoxGrand Rapids$312K
David MitchellGrand Rapids$12K
Bryan MustertGrand Rapids$9K
Shivang PatelGrand Rapids$8K
Orrie CloseGrand Rapids$8K
Manish VarmaGrand Rapids$8K
Jeffrey SavinGrand Rapids$8K
Matthew SmettsGrand Rapids$8K
Nik KolicajGrand Rapids$7K
Jordan CastleGrand Rapids$6K

See the full list for Michigan →

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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