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Dr. Andrew S. Korcek, MD

Accepting New Patients

(Dr. Andrew Korcek, MD)

(503 Ratings)

Specializes in: Adult Pulmonology, Sleep Medicine and Adult Critical Care

Wayne State University School of Medicine (1998)

Professional interests include: lung issues, insomnia, restless leg syndrome, and more.

25 Winfield Road
Winfield, IL 60190

(630) 469-9200

Dr. Andrew S. Korcek, MD is a pulmonologist in Winfield, IL specializing in adult pulmonology, sleep medicine and adult critical care. He graduated from Wayne State University School of Medicine in 1998 and has 28 years of experience. Dr. Andrew S. Korcek, MD is affiliated with Endeavor Health, Northwestern Medicine and Duly Health and Care.

Office Locations

25 Winfield Road
Winfield, IL 60190

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Some issues Dr. Andrew S. Korcek, MD can help you with:

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

Bronchoscopy

Bronchoscopy is a procedure in which a thin tube with a camera, called a bronchoscope, is inserted in the mouth or nose and slowly advanced to the lungs. This allows doctors to see the respiratory tract, which includes the throat, larynx (voice box), trachea (windpipe), bronchi (airways), and lungs. Doctors may recommend those who have or show signs of lung problems - for example, lung cancer or difficulty breathing - to undergo a bronchoscopy.

In performing a diagnostic bronchoscopy, doctors may only wish to visualize the respiratory tract, or doctors may also collect samples of tissue or fluid. The samples can help diagnose patients' conditions or, if patients have cancer, they can be used for staging purposes. One method for sample collection is bronchoalveolar lavage. In a bronchoalveolar lavage, doctors inject saline (salt water) through the bronchoscope and then suction it out of the airways. The washout collected is tested for lung disorders. Doctors can also insert a biopsy tool to collect tissue or mucus samples. The following are biopsies that can be performed by bronchoscopy:

Brush biopsy, which uses a brush to collect samples.
Endobronchial biopsy, which uses the bronchoscope to guide forceps to sample lung tissue.
Transbronchial biopsy, which uses forceps and image guidance - such as X-rays, CT scans, or fluoroscopy - to sample lung tissue.
Transbronchial fine needle aspiration (TBNA), which uses a small needle to take samples of the lymph nodes or lungs.

For visualization, bronchoscopy can be done alone, or it can be combined with ultrasound. Endobronchial ultrasound (EBUS) allows real-time imaging of the airway and is used for diagnosing and staging lung cancer, as well as for determining where the cancer has spread. EBUS can be performed with TBNA, a procedure known as endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

Doctors can also use bronchoscopy as a treatment for lung problems. For example, if a foreign body is trapped in the airway, doctors can insert forceps through the bronchoscope to remove it. If the airway has become narrowed - which may occur if patients have an infection, cancer, or some other inflammatory issue - bronchoscopy can be used to place a device called a stent in the area of constriction. The stent will keep the airway open, allowing the patient to breathe properly.

During a bronchoscopy, patients will be given medication (sedative) to help them relax. If it is only a diagnostic bronchoscopy, patients will be kept awake, but if the bronchoscopy is for therapeutic purposes, patients will be put to sleep by general anesthesia. After the procedure, patients will need to stay in the hospital for a few hours. They will not be able to eat or drink for about 2 hours. Some patients may experience discomfort, such as a sore throat or pain while swallowing. Throat lozenges and gargling may help alleviate these symptoms, which should go away after a few days. Patients will need to have someone drive them home once their doctor determines that they are ready.

Lung Issues

Every cell in the body requires oxygen to function and produces carbon dioxide as a waste product. In order to keep the body's tissues constantly supplied with fresh oxygen and to keep waste from building up, the lungs pump air in and out, even while sleeping or unaware. Unfortunately, diseases and disorders affecting the lungs are some of the most common medical problems afflicting people around the world. Some of the most common lung problems include asthma, COPD, pneumonia, and lung cancer.

Asthma is a chronic disease where swollen, inflamed airways make it hard to breathe. It is often brought on by specific triggers. While asthma is a common condition, affecting millions of people, it can also be serious and even fatal in severe cases. Treatment involves avoiding triggers and using inhaled corticosteroid medications.

COPD, or Chronic Obstructive Pulmonary Disease, is the name given to two illnesses that both cause difficulty breathing: emphysema and chronic bronchitis. In emphysema, the air sacs of the lungs become damaged, while with bronchitis they become clogged with mucus. COPD is the fourth leading cause of death in the United States. It is almost always caused by breathing irritants into the lungs, such as smoking or heavy pollution.

Pneumonia is a lung infection that can be caused by bacteria, a virus, or fungi. Most healthy people recover from pneumonia in a week or two, but for some people pneumonia can be fatal. There are treatments available for pneumonia, but the best treatment is to prevent getting sick in the first place. People who are at risk should make sure they get a flu shot every year. There is also a vaccine available for the type of bacteria that causes pneumonia.

Lung cancer occurs when abnormal cells inside the lung grow into a tumor, destroying healthy tissue. Because it is so difficult to detect lung cancer in early stages when it has few symptoms, it is the deadliest form of cancer, responsible for the most cancer deaths both in the U.S. and worldwide. Most lung cancer is caused by exposure to tobacco smoke, but between 10-15% of cases are not linked to smoking.

Some problems with the lungs are minor and are not cause for concern. However if symptoms have lasted for a month or more, even if they are minor, it is worth checking with a healthcare professional. A cough, shortness of breath, or excess mucus production that lingers for weeks are all worth getting looked at.

Noteworthy Medicare Patient Procedures Performed by Dr. Andrew S. Korcek, MD in 2023

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

Top 5%

By Volume:

pulmonary testing

In 2023, Dr. Andrew S. Korcek, MD performed more pulmonary testing procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Top 10%

By Affordability:

exhaled nitric oxide test

In 2023, Dr. Andrew S. Korcek, MD had a list price for exhaled nitric oxide (eNO) test that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Illinois. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Volume:

home cardiorespiratory sleep study

in-lab polysomnography

inpatient hospital care

sleep study

sleep study with CPAP

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2012, among providers in related specialties within Illinois, Dr. Andrew S. Korcek, MD performed more home cardiorespiratory (type 3) sleep study, in-lab polysomnography (overnight sleep study), inpatient hospital care (for patient admitted to hospital), sleep study, and sleep study with CPAP procedures for Medicare patients than 75% of them and he also had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2012 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	76
catheterization	12
doctor visit	489
hospital care	1035
inpatient care	1035
pulmonary testing	560
sleep study	96

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2013 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	74
blood draw	18
doctor visit	582
hospital care	1092
inpatient care	1092
pulmonary testing	593
sleep study	122

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	503
Female	536

**Ethnicity**
Non-Hispanic White	928
Black	36
Hispanic	35
Asian	25
Other	15
Native American	0

**Age**
From 65 to 74	421
From 75 to 84	338
85 and over	165
Less than 65	115

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	11
Atrial Fibrilation	29
Heart Failure	40
Chronic Obstructive Pulmonary Disease	45
Diabetes	38
Dementia	16
Cancer	19

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2014 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	59
doctor visit	680
hospital care	854
inpatient care	854
pulmonary testing	657
sleep study	107

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	527
Female	516

**Ethnicity**
Non-Hispanic White	925
Black	26
Hispanic	40
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	442
From 75 to 84	364
85 and over	156
Less than 65	81

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2014

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	45
Depression	28
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	36
Chronic Obstructive Pulmonary Disease	43
Diabetes	39
Dementia	14
Cancer	19

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2015 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	115
blood draw	17
doctor visit	684
hospital care	902
inpatient care	882
outpatient care	20
pulmonary testing	741
sleep study	165

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	1044
Female	1090

**Ethnicity**
Non-Hispanic White	1854
Black	62
Hispanic	104
Asian	78
Other	36
Native American	0

**Age**
From 65 to 74	946
From 75 to 84	648
85 and over	372
Less than 65	168

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	46
Depression	29
Chronic Kidney Disease	41
Asthma	28
Osteoperosis	10
Atrial Fibrilation	30
Heart Failure	37
Chronic Obstructive Pulmonary Disease	41
Diabetes	38
Dementia	15
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2016 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	91
blood draw	19
doctor visit	891
hospital care	898
inpatient care	872
outpatient care	26
pulmonary testing	736
sleep study	144

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	561
Female	602

**Ethnicity**
Non-Hispanic White	1020
Black	19
Hispanic	59
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	540
From 75 to 84	364
85 and over	177
Less than 65	82

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2016

Hypertension	75
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	46
Depression	30
Chronic Kidney Disease	44
Asthma	45
Osteoperosis	11
Atrial Fibrilation	24
Heart Failure	35
Chronic Obstructive Pulmonary Disease	41
Diabetes	38
Dementia	17
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2017 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	118
blood draw	18
doctor visit	912
hospital care	646
inpatient care	646
pulmonary testing	614
sleep study	198

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	549
Female	573

**Ethnicity**
Non-Hispanic White	977
Black	37
Hispanic	36
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	526
From 75 to 84	377
85 and over	146
Less than 65	73

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	46
Depression	30
Chronic Kidney Disease	42
Asthma	16
Osteoperosis	8
Atrial Fibrilation	25
Heart Failure	35
Chronic Obstructive Pulmonary Disease	39
Diabetes	38
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2018 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	121
blood draw	23
doctor visit	817
hospital care	718
inpatient care	718
pulmonary testing	647
sleep study	202

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	506
Female	562

**Ethnicity**
Non-Hispanic White	925
Black	35
Hispanic	46
Asian	34
Other	28
Native American	0

**Age**
From 65 to 74	476
From 75 to 84	369
85 and over	154
Less than 65	69

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2018

Hypertension	75
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	43
Depression	29
Chronic Kidney Disease	41
Asthma	13
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	35
Chronic Obstructive Pulmonary Disease	38
Diabetes	37
Dementia	16
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2019 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	105
blood draw	19
doctor visit	893
hospital care	786
inpatient care	786
lab tests	22
pulmonary testing	696
sleep study	168

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	610
Female	589

**Ethnicity**
Non-Hispanic White	1026
Black	33
Hispanic	50
Asian	48
Other	42
Native American	0

**Age**
From 65 to 74	563
From 75 to 84	394
85 and over	169
Less than 65	73

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2019

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	43
Depression	27
Chronic Kidney Disease	42
Asthma	12
Osteoperosis	10
Atrial Fibrilation	25
Heart Failure	35
Chronic Obstructive Pulmonary Disease	36
Diabetes	35
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2020 were pulmonary testing, hospital care, inpatient care and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	58
blood draw	20
doctor visit	817
hospital care	541
inpatient care	541
preventive care	13
pulmonary testing	665
sleep study	166
vaccines	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	493
Female	517

**Ethnicity**
Non-Hispanic White	880
Black	27
Hispanic	40
Asian	34
Other	29
Native American	0

**Age**
From 65 to 74	487
From 75 to 84	336
85 and over	126
Less than 65	61

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2020

Hypertension	72
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	42
Asthma	14
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	32
Chronic Obstructive Pulmonary Disease	34
Diabetes	33
Dementia	11
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2021 were pulmonary testing, hospital care, inpatient care and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	71
blood draw	20
doctor visit	755
hospital care	604
inpatient care	604
pulmonary testing	685
sleep study	205

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	464
Female	512

**Ethnicity**
Non-Hispanic White	840
Black	17
Hispanic	42
Asian	42
Other	35
Native American	0

**Age**
From 65 to 74	457
From 75 to 84	345
85 and over	119
Less than 65	55

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	44
Depression	27
Chronic Kidney Disease	46
Asthma	14
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	33
Chronic Obstructive Pulmonary Disease	35
Diabetes	36
Dementia	12
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL during 2022 were pulmonary testing, hospital care, inpatient care and sleep study.

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

airway management	63
blood draw	17
doctor visit	712
hospital care	411
inpatient care	411
pulmonary testing	723
sleep study	181

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	470
Female	443

**Ethnicity**
Non-Hispanic White	783
Black	31
Hispanic	26
Asian	40
Other	33
Native American	0

**Age**
From 65 to 74	437
From 75 to 84	322
85 and over	113
Less than 65	41

Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	27
Asthma	17
Osteoperosis	12
Atrial Fibrilation	32
Heart Failure	30
Chronic Obstructive Pulmonary Disease	42
Diabetes	32
Dementia	10
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Andrew S. Korcek, MD for Medicare patients.

The highest averages for the top procedures that Dr. Andrew S. Korcek, MD treated as a pulmonologist in Winfield, IL were hospital care, inpatient care, pulmonary testing and sleep study.

airway management	86
blood draw	19
catheterization	12
doctor visit	748
hospital care	771
inpatient care	767
lab tests	22
outpatient care	23
preventive care	13
pulmonary testing	665
sleep study	159
vaccines	13

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Andrew S. Korcek, MD.

**Gender**
Male	520
Female	540

**Ethnicity**
Black / African American	29
Asian / Pacific Islander	38
Non-Hispanic White	923
Native American / Alaskan Native	0
Hispanic	43
Other	19

**Age**
75 to 84	350
85 and over	154
Less than 65	74
65 to 74	481

Average of Total of Conditions of Medicare patients treated by Dr. Andrew S. Korcek, MD From 2012 - 2022

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

Hypertension	67
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	39
Depression	25
Chronic Kidney Disease	36
Asthma	17
Osteoporosis	9
Heart Failure	31
Chronic Obstructive Pulmonary Disease	35
Diabetes	33
Atrial Fibrillation	23
Cancer	15
Dementia	12

Education & Training

Dr. Andrew S. Korcek, MD graduated from Wayne State University School of Medicine in 1998. He completed residency at Loyola University Affiliated Hospitals. He is certified by the Board Certification: Critical Care and has a state license in Illinois.

Medical School: Wayne State University School of Medicine (1998)

Residency: Loyola University Affiliated Hospitals

Board Certification: Board Certification: Critical Care

Licensed In: Illinois

Affiliations & Hospitals

Dr. Andrew S. Korcek, MD is associated with these hospitals and organizations:

Endeavor Health

Northwestern Medicine

Duly Health and Care

Ratings & Reviews

Dr. Andrew S. Korcek, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 503 ratings. We collect ratings and reviews of Dr. Andrew S. Korcek, MD from all over the web to help you find the right in Winfield, IL.

4.91

Overall Rating

(503 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2017-01-02

I had huge problems with snoring and not getting enough rest, even when I was able to "sleep" 8 or more hours per day. I was diagnosed with obstructive sleep apnea, where I stopped breathing as often as 8-10 times PER HOUR. I worked with Dr. Korcek's office to schedule tests and a treatment procedure that has completely solved my problem. I feel SO much better, rarely requiring more than 6 hours of sleep to be effective all day. Thanks!!

Reviews From Around The Web

Overall Rating: 5.0 2026-02-19

Patient verified via Press Ganey

Very professional, listened to concerns and discussed possibilities. Went over test results carefully.

Overall Rating: 5.0 2025-11-13

Patient verified via Press Ganey

Dr Korcek does a fantastic job of explaining issues in detail so I can fully understand them.

Overall Rating: 5.0 2025-03-28

Patient verified via Press Ganey

Doctor very professional, knowledgeable and straight forward with his diagnosis

Overall Rating: 5.0 2025-06-25

Patient verified via Press Ganey

GREAT EXCELLENT office visit.Scheduled my wife to see the doctor as well.

Overall Rating: 5.0 2025-04-27

Patient verified via Press Ganey

I appreciate Dr Korcek's knowledge and ability. He communicates well.

Overall Rating: 5.0 2026-01-01

Patient verified via Press Ganey

Doctor is very thorough, thoughtful and direct. He was very good

Overall Rating: 5.0 2025-12-09

Patient verified via Press Ganey

The doctor was very good he explained everything to me and son

Overall Rating: 5.0 2025-12-04

Patient verified via Press Ganey

Excellent doctor

Overall Rating: 5.0 2025-09-30

Patient verified via Press Ganey

Like my doctor

General Payments

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

**Payments by Company**
GlaxoSmithKline, LLC.	$51 TRELEGY ELLIPTA $28	ANORO $23
Grifols USA, LLC	$17 Prolastin-C $17
Sunovion Pharmaceuticals Inc.	$8 Brovana $8

**Types of Payments**
Food and Beverage	$75

Biography

Dr. Andrew Korcek specializes in adult critical care, sleep medicine, and adult pulmonology. His areas of expertise include lung cancer, intensive care, and pulmonary fibrosis. Patients rated him highly, giving him an average of 5.0 stars (out of 5). Dr. Korcek graduated from Wayne State University School of Medicine and then he performed his residency at Beaumont Hospitals and a hospital affiliated with Loyola University. In addition to English, Dr. Korcek (or staff) speaks German, Czech, and Slovak. Dr. Korcek is professionally affiliated with Northwestern Medicine Central DuPage Hospital, Edward Hospital, and Duly Health and Care. Doctor.com reports that he is accepting new patients at his office in WINFIELD, IL.