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Dr. Harold Louis Mozwecz, MD, FACG

Accepting New Patients

(Dr. Harold Mozwecz, MD)

(224 Ratings)

Specializes in: Adult Gastroenterology

University of Illinois College of Medicine at Chicago (1985)

Professional interests include: polypectomy (polyp removal), colonoscopy, capsule endoscopy, and more.

430 Warrenville Road Suite 310
Lisle, IL 60532

(630) 790-1221

Dr. Harold Louis Mozwecz, MD, FACG is a gastroenterologist in Saint Charles, IL specializing in adult gastroenterology. He graduated from University of Illinois College of Medicine at Chicago in 1985 and has 41 years of experience. Dr. Harold Louis Mozwecz, MD, FACG is affiliated with Endeavor Health, Duly Health and Care and DUPAGE MEDICAL GROUP LTD.

Office Locations

3310 West Main Street
Saint Charles, IL 60175

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4575 Weaver Parkway
Warrenville, IL 60555

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25 Winfield Road
Winfield, IL 60190

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3310 W. Main Street Suite 100
Saint Charles, IL 60175

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Endeavor Health

430 Warrenville Road Suite 310
Lisle, IL 60532

(630) 790-1221

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Some issues Dr. Harold Louis Mozwecz, MD, FACG can help you with:

Colonoscopy

Colonoscopy is the use of a special tool called a colonoscope (a thin, flexible tube with a camera on the end) to examine the inside of the colon and rectum. The tube is typically inserted anally, and it allows the physician to examine the large intestine from the inside. It may be done at any time to diagnose bowel problems, but routine colonoscopies are advised after the age of 50 to screen for colon cancer.

A colonoscopy may be performed to diagnose:

Intestinal ulcers
Polyps
Bowel cancer
An unidentified source of pain or bleeding in the intestine

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

Enteroscopy

Enteroscopy visually examines the small bowel and identifies such issues as bleeding, tumors, polyps, ulcers, and swollen lymph nodes. Common reasons this exam may be ordered are abnormal X-ray results and unexplained diarrhea.

Enteroscopies may be used alone or in combination with other procedures. For example, if a doctor suspects malignancy (cancer) in the small bowel, she may use an enteroscope to take a sample of tissue from the small bowel and have it examined in a laboratory. If there is a blockage in the small intestine that cannot be surgically removed, an enteroscopy-guided stent placement may help relieve some of the symptoms associated with the obstruction. Enteroscopes may also be used to treat intestinal bleeding and remove abnormal growths like tumors and polyps, as well as foreign objects that might have found their way into the small bowel.

There are several ways to perform an enteroscopy:

Push enteroscopy involves the use of a long tube with a camera, called an enteroscope. Depending on the location of the problem, the enteroscope is either passed through the mouth or rectum. This technique is often used to detect and stop bleeding in the upper small intestine.
Balloon enteroscopy uses scopes that have tiny balloons at the tip. The balloons inflate and deflate to help make the passage of the scope into the small bowel easier. This method is used when there is a need to access and treat certain parts of the small intestine that push enteroscopy cannot reach.
Capsule enteroscopy involves swallowing a capsule with a tiny camera inside it. As the capsule travels through the small intestine, the camera records and sends images that are then downloaded and analyzed by the doctor. The capsule eventually leaves the body during bowel movement. If the doctor needs to visualize the entire small intestine, capsule enteroscopy is the only option. The only drawback to this technique is that it cannot be combined with any treatment.

Enteroscopy is typically performed at the doctor's office and takes about 20 to 30 minutes, but may take longer if combined with another procedure. Patients may have a sore throat for a few hours if the scope was inserted through the mouth. Normal activities may be resumed about 24 hours following enteroscopy.

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

In The News

“The instrument applies heat from the radio-frequency energy to the muscle that controls the valve and tightens it, said Dr. Harold Mozwecz, a gastroenterologist at Central DuPage Hospital in...”—"PROCEDURE OFFERS HOPE FOR HEARTBURN SUFFERERS", Orlando Sentinel, January 2001

Noteworthy Medicare Patient Procedures Performed by Dr. Harold Louis Mozwecz, MD, FACG in 2023

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

Top 5%

By Volume:

screening colonoscopy

In 2023, Dr. Harold Louis Mozwecz, MD, FACG performed more screening colonoscopy procedures for Medicare patients than 95% of providers in related specialties within Illinois.

Top 10%

By Volume:

preventive care

By Affordability:

blood draw

blood draw for lab tests

hospital care

inpatient care

inpatient hospital care

phlebotomy for lab tests

venipuncture

In 2023, among providers in related specialties within Illinois, Dr. Harold Louis Mozwecz, MD, FACG performed more preventive care procedures for Medicare patients than 90% of them and he also had a list price for blood draw, blood draw for lab tests, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

colonoscopy

By Affordability:

In 2012, among providers in related specialties within Illinois, Dr. Harold Louis Mozwecz, MD, FACG performed more colonoscopy procedures for Medicare patients than 75% of them and he also had a list price for blood count tests, blood tests, complete blood count (CBC), and lab tests 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. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

diagnostic procedures	269
doctor visit	430
gastrointestinal procedures	506
hospital care	107
inpatient care	107
minimally invasive procedures	506
preventive care	195
removal of lesion (e.g. growth)	269

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

blood draw	31
diagnostic procedures	296
doctor visit	497
gastrointestinal procedures	574
hospital care	156
injections	11
inpatient care	156
minimally invasive procedures	574
preventive care	218
removal of lesion (e.g. growth)	296

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	366
Female	350

**Ethnicity**
Non-Hispanic White	637
Black	20
Hispanic	24
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	220
85 and over	49
Less than 65	47

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2013

Hypertension	66
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	19
Asthma	7
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	28
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	14
blood draw	34
diagnostic procedures	286
doctor visit	472
esophageal dilation	14
gastrointestinal procedures	526
hospital care	84
inpatient care	84
minimally invasive procedures	526
preventive care	185
removal of lesion (e.g. growth)	286

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	322
Female	330

**Ethnicity**
Non-Hispanic White	567
Black	21
Hispanic	21
Asian	27
Other	16
Native American	0

**Age**
From 65 to 74	377
From 75 to 84	175
85 and over	45
Less than 65	55

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2014

Hypertension	62
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	16
Asthma	7
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	18
blood draw	33
diagnostic procedures	263
doctor visit	482
esophageal dilation	18
gastrointestinal procedures	508
hospital care	101
inpatient care	101
minimally invasive procedures	508
preventive care	180
removal of lesion (e.g. growth)	263

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	608
Female	640

**Ethnicity**
Non-Hispanic White	1092
Black	52
Hispanic	36
Asian	30
Other	38
Native American	0

**Age**
From 65 to 74	732
From 75 to 84	342
85 and over	94
Less than 65	80

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2015

Hypertension	66
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	30
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	11
blood draw	42
diagnostic procedures	253
doctor visit	461
esophageal dilation	11
gastrointestinal procedures	461
hospital care	109
inpatient care	109
lab tests	22
minimally invasive procedures	461
preventive care	160
removal of lesion (e.g. growth)	253

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	319
Female	331

**Ethnicity**
Non-Hispanic White	571
Black	13
Hispanic	24
Asian	21
Other	21
Native American	0

**Age**
From 65 to 74	395
From 75 to 84	162
85 and over	53
Less than 65	40

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2016

Hypertension	62
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	14
blood draw	34
diagnostic procedures	273
doctor visit	465
esophageal dilation	14
gastrointestinal procedures	493
hospital care	84
inpatient care	84
lab tests	15
minimally invasive procedures	493
preventive care	167
removal of lesion (e.g. growth)	273

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	342
Female	303

**Ethnicity**
Non-Hispanic White	560
Black	20
Hispanic	18
Asian	21
Other	26
Native American	0

**Age**
From 65 to 74	371
From 75 to 84	184
85 and over	51
Less than 65	39

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2017

Hypertension	62
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	29
Depression	15
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	17
blood draw	33
diagnostic procedures	250
doctor visit	447
esophageal dilation	17
gastrointestinal procedures	490
hospital care	57
inpatient care	57
lab tests	15
minimally invasive procedures	490
preventive care	178
removal of lesion (e.g. growth)	250

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	315
Female	329

**Ethnicity**
Non-Hispanic White	553
Black	18
Hispanic	31
Asian	17
Other	25
Native American	0

**Age**
From 65 to 74	377
From 75 to 84	177
85 and over	44
Less than 65	46

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2018

Hypertension	62
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	25
Asthma	6
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	25
blood draw	35
diagnostic procedures	242
doctor visit	423
esophageal dilation	25
gastrointestinal procedures	472
hospital care	101
inpatient care	101
lab tests	20
minimally invasive procedures	472
preventive care	169
removal of lesion (e.g. growth)	242

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	330
Female	334

**Ethnicity**
Non-Hispanic White	586
Black	13
Hispanic	26
Asian	19
Other	20
Native American	0

**Age**
From 65 to 74	401
From 75 to 84	181
85 and over	52
Less than 65	30

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2019

Hypertension	56
High Cholesterol	58
Stroke	2
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

blood draw	54
diagnostic procedures	167
doctor visit	387
gastrointestinal procedures	326
hospital care	78
inpatient care	78
lab tests	52
minimally invasive procedures	326
preventive care	126
removal of lesion (e.g. growth)	167

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	275
Female	217

**Ethnicity**
Non-Hispanic White	435
Black	0
Hispanic	16
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	144
85 and over	31
Less than 65	24

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2020

Hypertension	60
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	30
Asthma	5
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

balloon dilation	15
blood draw	48
diagnostic procedures	215
doctor visit	458
esophageal dilation	15
gastrointestinal procedures	370
hospital care	73
inpatient care	73
lab tests	52
minimally invasive procedures	370
preventive care	109
removal of lesion (e.g. growth)	215

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	270
Female	266

**Ethnicity**
Non-Hispanic White	465
Black	11
Hispanic	21
Asian	13
Other	26
Native American	0

**Age**
From 65 to 74	301
From 75 to 84	151
85 and over	51
Less than 65	33

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2021

Hypertension	63
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	29
Asthma	6
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

blood draw	29
diagnostic procedures	200
doctor visit	344
gastrointestinal procedures	348
hospital care	61
inpatient care	61
lab tests	33
minimally invasive procedures	348
preventive care	119
removal of lesion (e.g. growth)	200

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	244
Female	246

**Ethnicity**
Non-Hispanic White	432
Black	11
Hispanic	13
Asian	12
Other	22
Native American	0

**Age**
From 65 to 74	263
From 75 to 84	159
85 and over	46
Less than 65	22

Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG in 2022

Hypertension	71
High Cholesterol	73
Stroke	6
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	17
Asthma	8
Osteoperosis	13
Atrial Fibrilation	19
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	6
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Harold Louis Mozwecz, MD, FACG for Medicare patients.

The highest averages for the top procedures that Dr. Harold Louis Mozwecz, MD, FACG treated as a gastroenterologist in Saint Charles, IL were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

balloon dilation	16
blood draw	37
diagnostic procedures	246
doctor visit	442
esophageal dilation	16
gastrointestinal procedures	461
hospital care	91
injections	11
inpatient care	91
lab tests	29
minimally invasive procedures	461
preventive care	164
removal of lesion (e.g. growth)	246

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG.

**Gender**
Male	308
Female	304

**Ethnicity**
Black / African American	16
Asian / Pacific Islander	16
Non-Hispanic White	536
Native American / Alaskan Native	0
Hispanic	20
Other	19

**Age**
75 to 84	172
85 and over	46
Less than 65	37
65 to 74	355

Average of Total of Conditions of Medicare patients treated by Dr. Harold Louis Mozwecz, MD, FACG From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Harold Louis Mozwecz, MD, FACG treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	57
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	27
Depression	16
Chronic Kidney Disease	21
Asthma	6
Osteoporosis	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Atrial Fibrillation	12
Dementia	6
Cancer	13

Education & Training

Dr. Harold Louis Mozwecz, MD, FACG graduated from University of Illinois College of Medicine at Chicago in 1985. He completed residency at University of Illinois at Chicago Affiliated Hospitals. He is certified by the American Board of Internal Medicine: Gastroenterology and has a state license in Illinois.

Medical School: University of Illinois College of Medicine at Chicago (1985)

Residency: University of Illinois at Chicago Affiliated Hospitals (1988)

Board Certification: American Board of Internal Medicine: Gastroenterology

Licensed In: Illinois

Affiliations & Hospitals

Dr. Harold Louis Mozwecz, MD, FACG is associated with these hospitals and organizations:

Endeavor Health

Duly Health and Care

DUPAGE MEDICAL GROUP LTD

Ratings & Reviews

Dr. Harold Louis Mozwecz, MD, FACG has an exceptional overall rating with an average of 4.91 out of 5 stars based on 224 ratings. We collect ratings and reviews of Dr. Harold Louis Mozwecz, MD, FACG from all over the web to help you find the right in Saint Charles, IL.

4.91

Overall Rating

(224 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-12-22

Patient verified via Press Ganey

Dr Mozwecz was very warm and friendly and listened carefully to my problem. Discussed it with me and scheduled a procedure to treat it.

Overall Rating: 5.0 2025-05-23

Patient verified via Press Ganey

Dr Mozwecz has been my gastroenterologist for years. He's excellent and I much appreciate his care and attention to my well being.

Overall Rating: 5.0 2025-11-18

Patient verified via Press Ganey

Unbelievable how professional everything was. The information I was given reassured me.

General Payments

These charts describe general payments received by Dr. Harold Louis Mozwecz, MD, FACG. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AbbVie, Inc.	$88 Humira $17	$71
Takeda Pharmaceuticals America, Inc.	$78 AMITIZA $78
AbbVie Inc.	$67 Rinvoq $67
Shire North American Group Inc	$26 PENTASA $26
Takeda Pharmaceuticals U.S.A., Inc.	$24 ENTYVIO $24
Other	$38 ZENPEP $21	ZEPOSIA $17

**Types of Payments**
Food and Beverage	$221
Education	$99

Biography

Dr. Harold Mozwecz is a physician who specializes in adult gastroenterology. He is rated highly by his patients. Areas of expertise for Dr. Mozwecz include gastrointestinal problems (digestive disorders), polypectomy (polyp removal), and endoscopic foreign body removal. His hospital/clinic affiliations include Northwestern Medicine Central DuPage Hospital, Edward Hospital, and Duly Health and Care. Dr. Mozwecz has an open panel in Naperville, IL according to Doctor.com. After completing medical school at the University of Illinois College of Medicine at Chicago, he performed his residency at a hospital affiliated with the University of Illinois at Chicago.