Has Demetrius Lopes, MD received payments from drug or device companies?

Yes. Drug and device makers reported $301,882 in general payments to Demetrius Lopes, MD across 262 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 Demetrius Lopes, 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 Demetrius Lopes, 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.

Demetrius Lopes, MD

Neurological Surgery · Park Ridge, ILNPI 1184693244

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $189,821 of the $301,882 with a category attached, or 62.9%. 22 manufacturers reported payments, led by Stryker at 41.1% of the total. Among neurological surgery clinicians in IL 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.

$301,882in general payments, 2019–2025

Across 262 payments — averaging $1152.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Stryker$124K
Asahi Intecc CO., LTD.$79K
Medtronic$54K
Siemens Medical Solutions USA, Inc.$25K
Medical Device Business Services, Inc.$6K
Rapid Medical Ltd$2K
plus $11K from 16 others

$237,862in research payments, 2019–2025

Across 77 payments — averaging $3089.12 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

Stryker$119K
Microvention, Inc.$71K
Route 92 Medical, Inc.$25K
Siemens Medical Solutions USA, Inc.$13K
Medtronic$10K

What the payments were for

Consulting fees$189,82163%
Speaking & faculty fees$56,95119%
Travel & lodging$47,77216%
Food & beverage$7,3372%

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
Stryker	111	$124,042
Asahi Intecc CO., LTD.	16	$79,108
Medtronic(2 entities)	29	$54,460
Siemens Medical Solutions USA, Inc.	40	$24,567
Medical Device Business Services, Inc.	9	$6,099
Rapid Medical Ltd	1	$2,400
Imperative Care, Inc	4	$2,386
Phenox Inc.	2	$1,518
Gentuity, LLC	10	$1,498
Microvention, Inc.	7	$1,052
Qapel Medical Inc	1	$1,030
Canon Medical Systems USA, Inc.	1	$1,000
Asahi Intecc USA, Inc.	11	$509
Irras USA, Inc.	2	$501
Guerbet LLC	1	$500
Viz.ai, Inc.	4	$455
Johnson & Johnson	5	$210
Scientia Vascular	2	$184
Penumbra, Inc.	1	$130
Balt USA, LLC	2	$120
Route 92 Medical, Inc.	2	$84
Brainlab, Inc.	1	$28

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.

Pipeline$50,314
SURPASS EVOLVE$50,069
ASAHI Neurovascular Guiding Catheter$31,000
TREVO$24,166
EVOLVE PROLINE$15,020
CATALYST$11,120
ASAHI Neurovascular Guide Wire$10,936
ASAHI PTCA Guide Wire ASAHI Gladius Mongo 14$10,731
CHIKAI X 014$10,000
TGS$9,600
CorPath Imaging System$8,466
SURPASS$8,100
FLOWGATE$6,620
EMBOGUARD$6,050
EVOLVE TRIAD$5,850
ASAHI Neurovascular Guiding CatheterCHIKAI X 014, FUBUKI XF, Branchor X 8Fr$4,347
BROADWAY 8$2,775
AXS VECTA 71$2,700
TIGERTRIEVER 17 REVASCULARIZATION DEVICE$2,400
COMANECI 17$2,400

How this compares

$301,882 in reported general payments places this provider in the 95th percentile of 302 neurological surgery providers in Illinois.

See all neurological surgery providers in Illinois →

Medicare billing

Part B allowed, 2024

$149,503

Medicare patients

170

Services billed

394

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
ClopidogrelClopidogrel Bisulfate	14	$177

Paid to pharmacies, not to this prescriber.

Other neurological surgery in Park Ridge

Patrick SugruePark Ridge$571K
Dean KarahaliosPark Ridge$170K
Amanda SaratsisPark Ridge$144K
Zayed AlmadidyPark Ridge$53K
Joshua BillingsleyPark Ridge$36K
Tyler KoskiChicago$2.3M
Vincent TraynelisChicago$1.8M
Sergey NeckryshChicago$1.6M
Russell NockelsArlington Heights$1.4M
Bruce FrankelSpringfield$1.3M

See the full list for Illinois →

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.

Is this you, or does something look wrong? →