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Home > IL Providers

Dr. Joseph Clarence Marek, MD

(739 Ratings)

Specializes in: Adult Cardiology

Loyola University Chicago, Stritch School of Medicine

3825 Highland Avenue Suite 400
Downers Grove, IL 60515

(630) 719-4799

Dr. Joseph Clarence Marek, MD is a cardiologist in Naperville, IL specializing in adult cardiology. He graduated from Loyola University Chicago, Stritch School of Medicine. Dr. Joseph Clarence Marek, MD is affiliated with Advocate Health Care.

Office Locations

Advocate Health Care

1512 N Naper Boulevard Suite 176
Naperville, IL 60563

(630) 527-2730

(630) 527-2754

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Advocate Health Care

1836 Freedom Drive
Naperville, IL 60563

(630) 527-2730

(630) 281-2726

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Advocate Health Care

3825 Highland Avenue Suite 400
Downers Grove, IL 60515

(630) 719-4799

(630) 785-2128

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Noteworthy Medicare Patient Procedures Performed by Dr. Joseph Clarence Marek, MD in 2024

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

Top 5%

By Volume:

home cardiorespiratory sleep study

In 2024, Dr. Joseph Clarence Marek, MD performed more home cardiorespiratory (type 3) sleep study procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Top 25%

By Volume:

pulmonary stress test

In 2012, Dr. Joseph Clarence Marek, MD performed more pulmonary stress test 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. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2012 were ultrasound (sonogram), vascular procedures, cardiac procedures and pelvic imaging.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

abdominal imaging	11
cardiac procedures	72
doctor visit	999
pelvic imaging	11
ultrasound (sonogram)	177
vascular procedures	105

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2013 were ultrasound (sonogram), vascular procedures, cardiac procedures and ambulatory monitoring.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

ambulatory monitoring	54
cardiac procedures	114
doctor visit	996
ultrasound (sonogram)	230
vascular procedures	116

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	313
Female	334

**Ethnicity**
Non-Hispanic White	603
Black	0
Hispanic	13
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	244
85 and over	121
Less than 65	18

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	61
Depression	13
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	25
Chronic Obstructive Pulmonary Disease	13
Diabetes	31
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2014 were ultrasound (sonogram), vascular procedures, cardiac procedures and ambulatory monitoring.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

abdominal imaging	14
ambulatory monitoring	25
cardiac procedures	75
doctor visit	930
pelvic imaging	14
ultrasound (sonogram)	202
vascular procedures	127

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	302
Female	304

**Ethnicity**
Non-Hispanic White	560
Black	0
Hispanic	11
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	236
From 75 to 84	247
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	61
Depression	14
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	29
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2015 were ultrasound (sonogram), vascular procedures, cardiac procedures and pelvic imaging.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

abdominal imaging	23
cardiac procedures	96
doctor visit	860
pelvic imaging	23
ultrasound (sonogram)	318
vascular procedures	222

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	644
Female	640

**Ethnicity**
Non-Hispanic White	1174
Black	0
Hispanic	38
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	514
From 75 to 84	530
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	64
Depression	13
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	6
Atrial Fibrilation	23
Heart Failure	26
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

cardiac procedures	346
doctor visit	866
pulmonary testing	25
stress testing	244
ultrasound (sonogram)	310
vascular procedures	208

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	423
Female	401

**Ethnicity**
Non-Hispanic White	734
Black	0
Hispanic	22
Asian	31
Other	20
Native American	0

**Age**
From 65 to 74	330
From 75 to 84	326
85 and over	157
Less than 65	11

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	63
Depression	12
Chronic Kidney Disease	33
Asthma	15
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	28
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2017 were ultrasound (sonogram), vascular procedures, cardiac procedures and stress testing.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

abdominal imaging	18
ambulatory monitoring	14
cardiac procedures	254
doctor visit	824
pelvic imaging	18
pulmonary testing	51
stress testing	132
ultrasound (sonogram)	402
vascular procedures	294

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	406
Female	417

**Ethnicity**
Non-Hispanic White	734
Black	0
Hispanic	24
Asian	21
Other	25
Native American	0

**Age**
From 65 to 74	337
From 75 to 84	334
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2017

Hypertension	75
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	63
Depression	12
Chronic Kidney Disease	35
Asthma	5
Osteoperosis	8
Atrial Fibrilation	23
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2018 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

ambulatory monitoring	33
cardiac procedures	303
doctor visit	827
pulmonary testing	69
sleep study	19
stress testing	100
ultrasound (sonogram)	263
vascular procedures	93

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	351
Female	366

**Ethnicity**
Non-Hispanic White	642
Black	18
Hispanic	0
Asian	19
Other	20
Native American	0

**Age**
From 65 to 74	302
From 75 to 84	276
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	60
Depression	14
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	27
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2019 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

ambulatory monitoring	28
cardiac procedures	363
doctor visit	831
nuclear scan	55
pulmonary testing	46
sleep study	16
stress testing	205
ultrasound (sonogram)	162
vascular procedures	32

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	353
Female	371

**Ethnicity**
Non-Hispanic White	643
Black	0
Hispanic	20
Asian	22
Other	22
Native American	0

**Age**
From 65 to 74	301
From 75 to 84	288
85 and over	124
Less than 65	11

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	60
Depression	14
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	29
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

ambulatory monitoring	55
cardiac procedures	437
doctor visit	609
nuclear scan	70
pulmonary testing	27
stress testing	206
ultrasound (sonogram)	243
vascular procedures	67

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	370
Female	391

**Ethnicity**
Non-Hispanic White	679
Black	15
Hispanic	0
Asian	23
Other	31
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	315
85 and over	117
Less than 65	13

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	58
Depression	14
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	8
Atrial Fibrilation	23
Heart Failure	30
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and pulmonary testing.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

ambulatory monitoring	21
blood draw	17
cardiac procedures	196
doctor visit	682
nuclear scan	23
pulmonary testing	52
sleep study	20
stress testing	69
ultrasound (sonogram)	106

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	266
Female	292

**Ethnicity**
Non-Hispanic White	503
Black	0
Hispanic	0
Asian	17
Other	16
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	230
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	58
Depression	15
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	11
Atrial Fibrilation	24
Heart Failure	31
Chronic Obstructive Pulmonary Disease	13
Diabetes	25
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2022 were ultrasound (sonogram), cardiac procedures, blood draw and pulmonary testing.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

blood draw	34
cardiac procedures	89
doctor visit	580
pulmonary testing	30
ultrasound (sonogram)	89

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	201
Female	237

**Ethnicity**
Non-Hispanic White	396
Black	0
Hispanic	0
Asian	15
Other	13
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	174
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	48
Depression	15
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	15
Atrial Fibrilation	27
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	23
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2023 were ultrasound (sonogram), cardiac procedures, blood draw and pulmonary testing.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

blood draw	78
cardiac procedures	123
doctor visit	569
pulmonary testing	36
ultrasound (sonogram)	123

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	209
Female	251

**Ethnicity**
Non-Hispanic White	403
Black	0
Hispanic	0
Asian	16
Other	20
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	179
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	50
Depression	16
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	17
Atrial Fibrilation	29
Heart Failure	25
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL during 2024 were ultrasound (sonogram), cardiac procedures, blood draw and pulmonary testing.

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

blood draw	91
cardiac procedures	93
doctor visit	582
pulmonary testing	33
sleep study	14
ultrasound (sonogram)	93

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	172
Female	230

**Ethnicity**
Non-Hispanic White	360
Black	11
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	156
From 75 to 84	163
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	49
Depression	17
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	18
Atrial Fibrilation	29
Heart Failure	21
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	4
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Joseph Clarence Marek, MD for Medicare patients.

The highest averages for the top procedures that Dr. Joseph Clarence Marek, MD treated as a cardiologist in Naperville, IL were ultrasound (sonogram), cardiac procedures, stress testing and vascular procedures.

abdominal imaging	16
ambulatory monitoring	32
blood draw	55
cardiac procedures	197
doctor visit	781
nuclear scan	49
pelvic imaging	16
pulmonary testing	41
sleep study	17
stress testing	159
ultrasound (sonogram)	209
vascular procedures	140

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Joseph Clarence Marek, MD.

**Gender**
Male	308
Female	325

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	14
Non-Hispanic White	571
Hispanic	9
Native American / Alaskan Native	0
Other	16

**Age**
75 to 84	254
85 and over	39
Less than 65	4
65 to 74	255

Average of Total of Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Joseph Clarence Marek, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	69
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	53
Depression	13
Chronic Kidney Disease	30
Asthma	8
Osteoporosis	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Atrial Fibrillation	22
Cancer	11
Dementia	6

Education & Training

Dr. Joseph Clarence Marek, MD graduated from Loyola University Chicago, Stritch School of Medicine. He completed residency at Cleveland Clinic. He is certified by the Board certifications: American Board of Internal Medicine and has a state license in Illinois.

Medical School: Loyola University Chicago, Stritch School of Medicine

Residency: Cleveland Clinic

Board Certification: Board certifications: American Board of Internal Medicine

Licensed In: Illinois

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. Joseph Clarence Marek, 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, 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, Medicare Advantage, Humana Medicare Choice PPO, 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, Tricare Select, 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. Joseph Clarence Marek, 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

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

Medicare Advantage

Humana Medicare Choice PPO

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

Tricare Select

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

Ratings & Reviews

Dr. Joseph Clarence Marek, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 739 ratings. We collect ratings and reviews of Dr. Joseph Clarence Marek, MD from all over the web to help you find the right in Naperville, IL.

4.9

Overall Rating

(739 Ratings)

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General Payments

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

**Payments by Company**
E.R. Squibb & Sons, L.L.C.	$17,351 ELIQUIS $22	$17,330
CARDIVA MEDICAL, INC.	$306 SavvyWire $183	OptoWire $123
Edwards Lifesciences Corporation	$268 Transcatheter Heart Valves $175	Edwards SAPIEN 3 Transcatheter Heart Valve $93
Esperion Therapeutics, Inc.	$136 NEXLETOL $136
Regeneron Pharmaceuticals, Inc.	$121 PRALUENT (alirocumab) Injection $121
Other	$943 OPSUMIT $117	SAMSCA $113	BGM Galectin-3 $110	NephroCheck Test $108	NUPLAZID $101	Other $396

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$10,850
Consulting Fee	$6,209
Food and Beverage	$1,961
Travel and Lodging	$92
Education	$14

Biography

Dr. Joseph Marek, who practices in Downers Grove, IL and Naperville, IL, is a medical specialist in adult cardiology. Dr. Marek is affiliated with Advocate Good Samaritan Hospital. Before performing his residency at Cleveland Clinic, Dr. Marek attended Loyola University Chicago, Stritch School of Medicine. He is rated 5.0 stars (out of 5) by his patients. He can take Aetna EPO, Blue California, Coventry, and more.

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Dr. Joseph Clarence Marek, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Joseph Clarence Marek, MD in 2024

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By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Joseph Clarence Marek, MD From 2012 - 2024

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