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Home > IL Providers > Neurosurgeons

Dr. Demetrius K. Lopes, MD

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Specializes in: Neurosurgery

Federal University of Rio Grande do Sul Faculty of Medicine

3000 N Halsted Street Suite 509
Chicago, IL 60657

1-844-376-3876

Dr. Demetrius K. Lopes, MD is a neurosurgeon in Park Ridge, IL specializing in neurosurgery. He graduated from Federal University of Rio Grande do Sul Faculty of Medicine. Dr. Demetrius K. Lopes, MD is affiliated with Endeavor Health, Advocate Health Care, Powers Health and Powers Health Medical Group, Powers Health Partners.

Office Locations

1700 Luther Lane Suite 1170
Park Ridge, IL 60068

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Advocate Health Care

3000 N Halsted Street Suite 509
Chicago, IL 60657

1-844-376-3876

(847) 723-2041

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Powers Health Medical Group, Powers Health Partners

801 Macarthur Boulevard Suite 405
Munster, IN 46321

(219) 836-5167

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In The News (see more mentions in the news)

“Dr. Demetrius Lopes at the hospital s Center for Advanced Care is among the first neurosurgeons to take part in a clinical trial to treat normal pressure hydrocephalus, a condition that mimics...”—"Park Ridge woman with movement issues walks with ease after clinical trial: 'It was a miracle to me'", Chicago Sun-Times, July 2025

“But failing to intervene could lead to a full-blown stroke and more permanent damage, says Dr. Demetrius Lopes, neurosurgeon and co-director of the Comprehensive Stroke Program at Advocate Health...”—"Advocate neurosurgeon talks about why 'warning strokes' require emergency attention", Daily Herald, May 2023

“"The number of lives we've saved is incredible," said Dr. Demetrius Lopes.”—"Other Doctors Raise Red Flags, Say Practices Of Neurosurgeon Dr. Demetrius Lopes Are Dangerous", CBS News, November 2019

Noteworthy Medicare Patient Procedures Performed by Dr. Demetrius K. Lopes, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

embolization

spinal embolization

In 2023, Dr. Demetrius K. Lopes, MD performed more embolization, and spinal embolization procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Top 25%

By Volume:

arteriogram

minimally invasive procedures

vascular procedures

In 2012, Dr. Demetrius K. Lopes, MD performed more arteriogram, minimally invasive procedures, and vascular procedures procedures for Medicare patients than 75% of providers in related specialties within Illinois.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2012 were vascular procedures, hospital care, inpatient care and brain imaging (neuroimaging).

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

brain imaging (neuroimaging)	56
catheterization	41
cranial surgery	12
doctor visit	150
hospital care	88
inpatient care	88
minimally invasive procedures	41
spinal procedures	41
vascular procedures	295

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2013 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	33
doctor visit	156
hospital care	80
inpatient care	80
minimally invasive procedures	33
spinal procedures	33
vascular procedures	325

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	90
Female	187

**Ethnicity**
Non-Hispanic White	158
Black	73
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	78
85 and over	19
Less than 65	63

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	46
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	37
Dementia	18
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2014 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	40
doctor visit	140
hospital care	84
inpatient care	84
minimally invasive procedures	40
spinal procedures	40
vascular procedures	420

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	82
Female	159

**Ethnicity**
Non-Hispanic White	125
Black	74
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	63
85 and over	20
Less than 65	57

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2014

Hypertension	75
High Cholesterol	69
Stroke	44
Ischemic Heart Disease	49
Depression	33
Chronic Kidney Disease	37
Asthma	14
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	41
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2015 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	50
doctor visit	128
hospital care	92
inpatient care	92
minimally invasive procedures	62
spinal procedures	50
thrombectomy (blood clot removal)	12
vascular procedures	302

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	208
Female	356

**Ethnicity**
Non-Hispanic White	284
Black	170
Hispanic	80
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	168
85 and over	52
Less than 65	94

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2015

Hypertension	75
High Cholesterol	72
Stroke	49
Ischemic Heart Disease	51
Depression	33
Chronic Kidney Disease	36
Asthma	18
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	28
Chronic Obstructive Pulmonary Disease	23
Diabetes	43
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2016 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	27
doctor visit	125
hospital care	40
inpatient care	40
minimally invasive procedures	27
spinal procedures	27
vascular procedures	193

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	74
Female	132

**Ethnicity**
Non-Hispanic White	112
Black	45
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	66
85 and over	20
Less than 65	33

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2016

Hypertension	75
High Cholesterol	69
Stroke	45
Ischemic Heart Disease	54
Depression	26
Chronic Kidney Disease	38
Asthma	18
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	28
Chronic Obstructive Pulmonary Disease	17
Diabetes	40
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2017 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	15
doctor visit	86
hospital care	73
inpatient care	73
minimally invasive procedures	15
spinal procedures	15
vascular procedures	168

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	93
Female	141

**Ethnicity**
Non-Hispanic White	123
Black	62
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	78
85 and over	19
Less than 65	45

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2017

Hypertension	75
High Cholesterol	65
Stroke	55
Ischemic Heart Disease	55
Depression	34
Chronic Kidney Disease	44
Asthma	11
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	28
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	29
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2018 were vascular procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	28
doctor visit	132
hospital care	50
inpatient care	50
minimally invasive procedures	28
spinal procedures	28
vascular procedures	164

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	76
Female	143

**Ethnicity**
Non-Hispanic White	151
Black	42
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	69
85 and over	26
Less than 65	39

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	50
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	39
Asthma	10
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	29
Chronic Obstructive Pulmonary Disease	20
Diabetes	30
Dementia	19
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2019 were vascular procedures, minimally invasive procedures, catheterization and spinal procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	23
doctor visit	107
minimally invasive procedures	23
spinal procedures	23
vascular procedures	154

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	59
Female	117

**Ethnicity**
Non-Hispanic White	137
Black	12
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	64
85 and over	26
Less than 65	18

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	51
Ischemic Heart Disease	45
Depression	33
Chronic Kidney Disease	40
Asthma	9
Osteoperosis	18
Atrial Fibrilation	24
Heart Failure	29
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	23
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2020 were vascular procedures, minimally invasive procedures, catheterization and spinal procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	12
doctor visit	68
minimally invasive procedures	24
spinal procedures	12
stent placement (stenting)	12
vascular procedures	114

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	62
Female	95

**Ethnicity**
Non-Hispanic White	114
Black	0
Hispanic	14
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	54
85 and over	24
Less than 65	19

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2020

Hypertension	75
High Cholesterol	74
Stroke	47
Ischemic Heart Disease	55
Depression	31
Chronic Kidney Disease	52
Asthma	11
Osteoperosis	12
Atrial Fibrilation	25
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	38
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2021 were vascular procedures, minimally invasive procedures, catheterization and spinal procedures.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	18
doctor visit	83
minimally invasive procedures	30
spinal procedures	18
stent placement (stenting)	12
vascular procedures	119

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	58
Female	98

**Ethnicity**
Non-Hispanic White	124
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	54
85 and over	24
Less than 65	22

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	54
Ischemic Heart Disease	45
Depression	31
Chronic Kidney Disease	51
Asthma	7
Osteoperosis	13
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL during 2022 were vascular procedures, minimally invasive procedures, stent placement (stenting) and catheterization.

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

catheterization	22
doctor visit	45
minimally invasive procedures	46
spinal procedures	22
stent placement (stenting)	24
vascular procedures	189

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	62
Female	81

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	69
Ischemic Heart Disease	44
Depression	26
Chronic Kidney Disease	35
Asthma	10
Osteoperosis	13
Atrial Fibrilation	34
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	40
Dementia	13
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Demetrius K. Lopes, MD for Medicare patients.

The highest averages for the top procedures that Dr. Demetrius K. Lopes, MD treated as a neurosurgeon in Park Ridge, IL were vascular procedures, hospital care, inpatient care and brain imaging (neuroimaging).

brain imaging (neuroimaging)	56
catheterization	28
cranial surgery	12
doctor visit	110
hospital care	72
inpatient care	72
minimally invasive procedures	33
spinal procedures	28
stent placement (stenting)	16
thrombectomy (blood clot removal)	12
vascular procedures	222

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Demetrius K. Lopes, MD.

**Gender**
Male	78
Female	137

**Ethnicity**
Black / African American	43
Asian / Pacific Islander	1
Non-Hispanic White	130
Native American / Alaskan Native	0
Hispanic	19
Other	0

**Age**
75 to 84	68
85 and over	20
Less than 65	35
65 to 74	88

Average of Total of Conditions of Medicare patients treated by Dr. Demetrius K. Lopes, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Demetrius K. Lopes, MD treated were hypertension, high cholesterol, stroke and ischemic heart disease.

Hypertension	68
High Cholesterol	65
Stroke	46
Ischemic Heart Disease	44
Depression	28
Chronic Kidney Disease	36
Asthma	10
Osteoporosis	10
Heart Failure	26
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Atrial Fibrillation	17
Dementia	18
Cancer	12

Education & Training

Dr. Demetrius K. Lopes, MD graduated from Federal University of Rio Grande do Sul Faculty of Medicine. He completed residency at Indiana University Affiliated Hospitals. He is certified by the American Board of Neurological Surgery and has a state license in Illinois.

Medical School: Federal University of Rio Grande do Sul Faculty of Medicine

Residency: Indiana University Affiliated Hospitals (1995)

Board Certification: American Board of Neurological Surgery (2010)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Demetrius K. Lopes, MD is associated with these hospitals and organizations:

Endeavor Health

Advocate Health Care

Powers Health

Powers Health Medical Group, Powers Health Partners

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Demetrius K. Lopes, MD appears to accept the following insurance providers: CIGNA Choice Fund PPO, United Healthcare Select Plus POS, Magellan Health Services, United Healthcare Select HMO, United Healthcare Select EPO, OptumHealth Behavioral Solutions (United Behavioral Health), United Healthcare Options PPO, United Healthcare Indemnity, Unicare PPO, Blue Choice, Aetna POS, TRICARE Prime, Aetna QPOS, Aetna Open Choice PPO, Aetna Open Access HMO, Aetna Medicare HMO, Golden Rule, Great-West Healthcare, Community Care Network (CCN), Behavioral Health Systems, TRICARE, Aetna Open Access Aetna Select, Aetna Select, Aetna EPO, Aetna HMO, CIGNA Open Access POS, CIGNA PPO, Aetna Medicare PPO, United Healthcare Select Plus HMO, United Healthcare Choice Plus PPO, WellCare, AARP, Humana Medicare Choice PPO, Medicare Advantage, United Healthcare Choice Plus HMO, Blue Advantage HMO, Blue Cross Medicare Advantage PPO, United Healthcare, Three Rivers, Medicare, Medicaid, Humana, Cigna, Molina Healthcare, United Healthcare Navigate HMO, First Health, Beech Street, HealthLink PPO, HealthSmart, HFN, CIGNA Open Access Plus POS, PHCS PPO, MultiPlan PPO, CHAMPVA, SEIU - Local 4 PPO, Aetna Medicare Prime HMO-POS, Ambetter of Michigan Marketplace (ACA) HMO, Union Medical Care PPO, Aetna Elect Choice HMO (includes Aetna Health Funds), AAH UMR Select - Team Member Plan, Aetna Medicare POS, Aetna State of Illinois Open Access Plus, Aetna Open Choice POS, Health Services and Technology, HST Care Connect PPO, Aetna Open Choice PPO - State of Illinois - SOI, United Surest (previously Bind), Aetna Managed Choice (MC) POS, Union Health Services, Inc., Blue Cross Med Select PPO, Aetna Open Choice POS II, Benefits Services and Systems, Inc, Aetna State of Illinois PPO, FirstHealth, Ambetter of Indiana Marketplace (ACA) HMO, Ambetter of Iowa Marketplace (ACA) HMO, BCBS Commercial PPO, Aetna Health Network Option, Health Services and Technology, HST Care Connect EPO, Oscar Select Commercial HMO, Provider Network of America (PNOA), AAH UMR Preferred - Team Member Plan, Oscar Choice Health Commercial HMO, Aetna Signature Administrators PPO (ASA or SRC) PPO, Aetna Upfront Advantage, Ambetter of Illinois Marketplace (ACA) HMO, Aetna Signature Administrators PPO, Blue Cross Community FHP, SEIU - Local 4 HMO, UFCW Local 1546 Health and Welfare Fund (UMC) HMO, Aetna Open Access Elect Choice (includes Aetna Health Funds), Aetna Better Health Premier Plan MMAI, Blue Cross Commercial PPO, Aetna NAP - PPO, Aetna Value Performance Network, Aetna Premier Care Plus Network, Zing Health, Trilogy, Blue Cross Community MMAI, BlueCare Direct HMO, Aetna Health Network Only, Benefit Plan Administrators (BPA), Aetna Premier Care Network and Blue Cross Medicare Supplement PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Demetrius K. Lopes, MD accepts the following insurance providers:

CIGNA Choice Fund PPO

United Healthcare Select Plus POS

Magellan Health Services

United Healthcare Select HMO

United Healthcare Select EPO

OptumHealth Behavioral Solutions (United Behavioral Health)

United Healthcare Options PPO

United Healthcare Indemnity

Unicare PPO

Blue Choice

Aetna POS

TRICARE Prime

Aetna QPOS

Aetna Open Choice PPO

Aetna Open Access HMO

Aetna Medicare HMO

Golden Rule

Great-West Healthcare

Community Care Network (CCN)

Behavioral Health Systems

TRICARE

Aetna Open Access Aetna Select

Aetna Select

Aetna EPO

Aetna HMO

CIGNA Open Access POS

CIGNA PPO

Aetna Medicare PPO

United Healthcare Select Plus HMO

United Healthcare Choice Plus PPO

WellCare

AARP

Humana Medicare Choice PPO

Medicare Advantage

United Healthcare Choice Plus HMO

Blue Advantage HMO

Blue Cross Medicare Advantage PPO

United Healthcare

Three Rivers

Medicare

Medicaid

Humana

Cigna

Molina Healthcare

United Healthcare Navigate HMO

First Health

Beech Street

HealthLink PPO

HealthSmart

HFN

CIGNA Open Access Plus POS

PHCS PPO

MultiPlan PPO

CHAMPVA

SEIU - Local 4 PPO

Aetna Medicare Prime HMO-POS

Ambetter of Michigan Marketplace (ACA) HMO

Union Medical Care PPO

Aetna Elect Choice HMO (includes Aetna Health Funds)

AAH UMR Select - Team Member Plan

Aetna Medicare POS

Aetna State of Illinois Open Access Plus

Aetna Open Choice POS

Health Services and Technology, HST Care Connect PPO

Aetna Open Choice PPO - State of Illinois - SOI

United Surest (previously Bind)

Aetna Managed Choice (MC) POS

Union Health Services, Inc.

Blue Cross Med Select PPO

Aetna Open Choice POS II

Benefits Services and Systems, Inc

Aetna State of Illinois PPO

FirstHealth

Ambetter of Indiana Marketplace (ACA) HMO

Ambetter of Iowa Marketplace (ACA) HMO

BCBS Commercial PPO

Aetna Health Network Option

Health Services and Technology, HST Care Connect EPO

Oscar Select Commercial HMO

Provider Network of America (PNOA)

AAH UMR Preferred - Team Member Plan

Oscar Choice Health Commercial HMO

Aetna Signature Administrators PPO (ASA or SRC) PPO

Aetna Upfront Advantage

Ambetter of Illinois Marketplace (ACA) HMO

Aetna Signature Administrators PPO

Blue Cross Community FHP

SEIU - Local 4 HMO

UFCW Local 1546 Health and Welfare Fund (UMC) HMO

Aetna Open Access Elect Choice (includes Aetna Health Funds)

Aetna Better Health Premier Plan MMAI

Blue Cross Commercial PPO

Aetna NAP - PPO

Aetna Value Performance Network

Aetna Premier Care Plus Network

Zing Health

Trilogy

Blue Cross Community MMAI

BlueCare Direct HMO

Aetna Health Network Only

Benefit Plan Administrators (BPA)

Aetna Premier Care Network

Blue Cross Medicare Supplement PPO

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General Payments

These charts describe general payments received by Dr. Demetrius K. Lopes, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Penumbra, Inc.	$485,464 ACE $12,840	Penumbra Coil 400 $7,554	ADAPT $7,484	Apollo $1,200	RED 72 $142	Other $456,244
Medtronic Neurovascular	$343,329 Flow Diversion $14,438	NV $7,152	Neurovascular Stents $2,815	Onyx $20	$318,904
Medtronic USA, Inc.	$247,094 PIPELINE $182,651	Onyx $9,652	Solitaire $1,683	MVP $118	$52,990
Stryker Corporation	$196,078 Coils $71,699	SURPASS EVOLVE $29,830	Trevo $18,875	EVOLVE PROLINE $15,048	Neuroform EZ $10,200	Other $50,425
Asahi Intecc Co., Ltd.	$83,000 ASAHI Neurovascular Guiding Catheter $31,000	ASAHI Neurovascular Guide Wire $20,091	CHIKAI X 014 $10,000	ASAHI PTCA Guide Wire ASAHI Gladius Mongo 14 $10,000	$11,909
Other	$189,086 Coils $27,199	AX Angiography Fluoroscopy Radiology Systems $21,462	Flow Diversion $19,826	Non-Product Specific $16,868	PIPELINE $13,786	Other $89,945

**Types of Payments**
Current or prospective ownership or investment interest	$456,050
Royalty or License	$370,072
Consulting Fee	$289,974
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$258,878
Travel and Lodging	$141,793
Other	$27,283

Research Payments

Dr. Demetrius K. Lopes, MD has received 216 research payments totaling $1,159,732.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Demetrius K. Lopes, MD.

Penumbra, Inc.	2014	$456,050.00	Physician Covered Recipient	all shares repurchased by Penumbra in May 2014 and no current ownership
Penumbra, Inc.	2013	$271,250.00	Physician Covered Recipient	common stock
Viz.ai, Inc.	2022	$77,562.00	Physician Covered Recipient	Preferred stock
Viz.ai, Inc.	2021	$62,825.00	Physician Covered Recipient	Preferred stock
Blockade Medical, LLC	2013	$50,000.00	Physician Covered Recipient	Stock
Blockade Medical, LLC	2014	$50,000.00	Physician Covered Recipient	Stock
Blockade Medical, LLC	2015	$50,000.00	Physician Covered Recipient	Stock

Biography

Dr. Demetrius Lopes is a neurosurgery specialist. His clinical interests include neurosurgery. Dr. Lopes accepts several insurance carriers, including Aetna EPO, Blue California, and Coventry. He graduated from Federal University of Rio Grande do Sul Faculty of Medicine. He completed his residency training at a hospital affiliated with Indiana University and a hospital affiliated with SUNY, University at Buffalo. In addition to English, Dr. Lopes (or staff) speaks Spanish and Portuguese. Dr. Lopes's professional affiliations include Advocate Condell Medical Center, Advocate Lutheran General Hospital, and Advocate Christ Medical Center.