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Dr. Marius J. Katilius, MD

Accepting New Patients

(181 Ratings)

Specializes in: General Surgery, Colon & Rectal Surgery and Surgical Oncology (Cancer Surgery)

Rush Medical College (1994)

Professional interests include: laparoscopic surgery, colorectal surgery procedures, breast surgery, and more.

1890 SILVER CROSS BOULEVARD
NEW LENOX, IL 60451

(630) 469-9200

Dr. Marius J. Katilius, MD is a general surgeon in NEW LENOX, IL specializing in general surgery, colon & rectal surgery and surgical oncology (cancer surgery). He graduated from Rush Medical College in 1994 and has 32 years of experience. Dr. Marius J. Katilius, MD is affiliated with Duly Health and Care.

Office Locations

1890 SILVER CROSS BOULEVARD
NEW LENOX, IL 60451

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330 Madison Street
Joliet, IL 60435

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Some issues Dr. Marius J. Katilius, MD can help you with:

Laparoscopic Surgery

Laparoscopic surgery is a kind of minimally invasive surgery using a thin, narrow tube called a laparoscope. Usually performed on the abdomen or the pelvic region, the surgeon makes a few very small incisions instead of one large one.

During the procedure, the surgeon inserts the laparoscope, which contains a light and camera that allows the surgeon to see what is happening inside the body. Then tiny tools are placed through the small openings and used to perform the surgery.

The most common laparoscopic surgery is gallbladder removal, but laparoscopic surgery may also be used for the removal of a kidney or appendix, to treat certain cysts and tumors, for bariatric surgery, for some GERD treatments, or for hernia repairs, among others.

Because laparoscopic surgery only uses a few tiny incisions, the scars are minimal and recovery is easier than with open surgery.

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

In The News

“The officer's skull was fractured and he had blood on his brain, Dr. Marius Katilius, of Illinois Masonic Medical Center, said later at the news conference, noting that the officer was in serious...”—"Chicago cop and teen wounded, suspect killed in shootout", The Detroit News, November 2019

“While Johnson said the 17-year police veteran suffered graze wound to the head, Dr. Marius Katilius of Illinois Masonic Medical Center added the officer suffered a skull fracture and had blood on...”—"Officer, teenage bystander wounded in Chicago shootout", Associated Press News, November 2019

“Dr. Marius Katilius of Illinois Masonic Medical Center said the officer was in serious but stable condition.”—"Police: Chicago teen hurt in gunfire likely shot by officer", Associated Press News, November 2019

Noteworthy Medicare Patient Procedures Performed by Dr. Marius J. Katilius, MD in 2023

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

Top 25%

By Volume:

inpatient hospital care

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, among providers in related specialties within Illinois, Dr. Marius J. Katilius, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2012 were inpatient care, hospital care, nursing home care and gastrointestinal procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	33
catheterization	33
debridement (removal of unhealthy tissue)	30
diagnostic procedures	35
doctor visit	195
excision	30
gastrointestinal procedures	81
hospital care	257
inpatient care	257
minimally invasive procedures	81
nursing home care	149
preventive care	13
removal of lesion (e.g. growth)	35
tracheal (windpipe) procedures	11

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2013 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	42
catheterization	42
debridement (removal of unhealthy tissue)	14
diagnostic procedures	43
doctor visit	165
excision	14
gastrointestinal procedures	116
hospital care	316
inpatient care	316
minimally invasive procedures	116
nursing home care	201
preventive care	18
removal of lesion (e.g. growth)	43

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	206
Female	240

**Ethnicity**
Non-Hispanic White	369
Black	45
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	152
85 and over	81
Less than 65	76

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2013

Hypertension	75
High Cholesterol	68
Stroke	17
Ischemic Heart Disease	53
Depression	41
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	17
Atrial Fibrilation	26
Heart Failure	44
Chronic Obstructive Pulmonary Disease	34
Diabetes	48
Dementia	39
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2014 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	29
catheterization	29
debridement (removal of unhealthy tissue)	26
diagnostic procedures	44
doctor visit	204
excision	26
gastrointestinal procedures	88
hospital care	324
inpatient care	324
minimally invasive procedures	88
nursing home care	165
preventive care	15
removal of lesion (e.g. growth)	44

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	191
Female	244

**Ethnicity**
Non-Hispanic White	369
Black	39
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	142
85 and over	95
Less than 65	61

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2014

Hypertension	75
High Cholesterol	68
Stroke	19
Ischemic Heart Disease	52
Depression	36
Chronic Kidney Disease	54
Asthma	12
Osteoperosis	14
Atrial Fibrilation	25
Heart Failure	46
Chronic Obstructive Pulmonary Disease	36
Diabetes	48
Dementia	42
Cancer	20

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2015 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	25
catheterization	25
debridement (removal of unhealthy tissue)	14
diagnostic procedures	27
doctor visit	133
excision	14
gastrointestinal procedures	63
hospital care	313
inpatient care	313
minimally invasive procedures	63
nursing home care	160
preventive care	11
removal of lesion (e.g. growth)	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	314
Female	466

**Ethnicity**
Non-Hispanic White	654
Black	78
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	252
85 and over	154
Less than 65	114

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2015

Hypertension	75
High Cholesterol	67
Stroke	18
Ischemic Heart Disease	49
Depression	38
Chronic Kidney Disease	51
Asthma	22
Osteoperosis	18
Atrial Fibrilation	27
Heart Failure	44
Chronic Obstructive Pulmonary Disease	32
Diabetes	46
Dementia	40
Cancer	19

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2016 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	12
catheterization	12
debridement (removal of unhealthy tissue)	13
diagnostic procedures	14
doctor visit	158
excision	13
gastrointestinal procedures	26
hospital care	317
inpatient care	317
minimally invasive procedures	26
nursing home care	82
removal of lesion (e.g. growth)	14

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	175
Female	227

**Ethnicity**
Non-Hispanic White	329
Black	38
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	114
85 and over	80
Less than 65	83

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2016

Hypertension	75
High Cholesterol	64
Stroke	15
Ischemic Heart Disease	51
Depression	40
Chronic Kidney Disease	58
Asthma	36
Osteoperosis	14
Atrial Fibrilation	24
Heart Failure	46
Chronic Obstructive Pulmonary Disease	32
Diabetes	46
Dementia	37
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2017 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	21
catheterization	21
debridement (removal of unhealthy tissue)	15
diagnostic procedures	18
doctor visit	195
excision	15
gastrointestinal procedures	39
hospital care	334
inpatient care	334
minimally invasive procedures	39
nursing home care	64
removal of lesion (e.g. growth)	18

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	179
Female	205

**Ethnicity**
Non-Hispanic White	299
Black	45
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	125
From 75 to 84	122
85 and over	73
Less than 65	64

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2017

Hypertension	75
High Cholesterol	65
Stroke	15
Ischemic Heart Disease	55
Depression	41
Chronic Kidney Disease	66
Asthma	9
Osteoperosis	13
Atrial Fibrilation	26
Heart Failure	49
Chronic Obstructive Pulmonary Disease	33
Diabetes	51
Dementia	36
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2018 were inpatient care, hospital care, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

abdominal imaging	21
anastomosis	19
cardiac procedures	21
catheterization	19
diagnostic procedures	26
doctor visit	193
gastrointestinal procedures	85
hospital care	375
inpatient care	375
minimally invasive procedures	85
nursing home care	28
preventive care	21
removal of lesion (e.g. growth)	26
ultrasound (sonogram)	42

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	207
Female	237

**Ethnicity**
Non-Hispanic White	360
Black	44
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	148
85 and over	109
Less than 65	56

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2018

Hypertension	75
High Cholesterol	71
Stroke	15
Ischemic Heart Disease	53
Depression	40
Chronic Kidney Disease	65
Asthma	11
Osteoperosis	12
Atrial Fibrilation	27
Heart Failure	45
Chronic Obstructive Pulmonary Disease	31
Diabetes	49
Dementia	35
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2019 were hospital care, inpatient care, nursing home care and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	12
catheterization	12
diagnostic procedures	25
doctor visit	141
gastrointestinal procedures	37
hospital care	342
inpatient care	342
minimally invasive procedures	37
nursing home care	47
removal of lesion (e.g. growth)	25

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	168
Female	212

**Ethnicity**
Non-Hispanic White	290
Black	48
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	127
From 75 to 84	129
85 and over	73
Less than 65	51

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	16
Ischemic Heart Disease	58
Depression	40
Chronic Kidney Disease	67
Asthma	9
Osteoperosis	13
Atrial Fibrilation	31
Heart Failure	48
Chronic Obstructive Pulmonary Disease	31
Diabetes	47
Dementia	35
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2020 were hospital care, inpatient care, ultrasound (sonogram) and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

abdominal imaging	15
anastomosis	17
cardiac procedures	16
catheterization	17
diagnostic procedures	11
doctor visit	132
gastrointestinal procedures	28
hospital care	277
inpatient care	277
minimally invasive procedures	28
removal of lesion (e.g. growth)	11
ultrasound (sonogram)	31

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	158
Female	150

**Ethnicity**
Non-Hispanic White	243
Black	36
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	103
85 and over	53
Less than 65	39

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2020

Hypertension	75
High Cholesterol	73
Stroke	16
Ischemic Heart Disease	55
Depression	33
Chronic Kidney Disease	63
Asthma	7
Osteoperosis	10
Atrial Fibrilation	29
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	44
Dementia	29
Cancer	21

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2021 were inpatient care, hospital care, gastrointestinal procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	20
blood draw	12
cardiac procedures	12
catheterization	20
diagnostic procedures	100
doctor visit	247
gastrointestinal procedures	146
hospital care	335
inpatient care	335
minimally invasive procedures	146
preventive care	26
removal of lesion (e.g. growth)	100
tracheal (windpipe) procedures	13
ultrasound (sonogram)	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	181
Female	241

**Ethnicity**
Non-Hispanic White	356
Black	31
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	147
85 and over	76
Less than 65	45

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	10
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	51
Asthma	10
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	38
Dementia	22
Cancer	21

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL during 2022 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

anastomosis	11
blood draw	24
catheterization	11
diagnostic procedures	61
doctor visit	242
gastrointestinal procedures	100
hospital care	266
inpatient care	266
lab tests	15
minimally invasive procedures	100
preventive care	17
removal of lesion (e.g. growth)	61

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	164
Female	186

**Ethnicity**
Non-Hispanic White	292
Black	26
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	123
85 and over	57
Less than 65	28

Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	37
Depression	25
Chronic Kidney Disease	36
Asthma	11
Osteoperosis	17
Atrial Fibrilation	30
Heart Failure	29
Chronic Obstructive Pulmonary Disease	24
Diabetes	39
Dementia	14
Cancer	28

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Marius J. Katilius, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marius J. Katilius, MD treated as a general surgeon in NEW LENOX, IL were inpatient care, hospital care, nursing home care and gastrointestinal procedures.

abdominal imaging	18
anastomosis	21
blood draw	18
cardiac procedures	16
catheterization	21
debridement (removal of unhealthy tissue)	18
diagnostic procedures	36
doctor visit	182
excision	18
gastrointestinal procedures	73
hospital care	314
inpatient care	314
lab tests	15
minimally invasive procedures	73
nursing home care	112
preventive care	17
removal of lesion (e.g. growth)	36
tracheal (windpipe) procedures	12
ultrasound (sonogram)	28

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Marius J. Katilius, MD.

**Gender**
Male	176
Female	218

**Ethnicity**
Black / African American	39
Asian / Pacific Islander	0
Non-Hispanic White	323
Native American / Alaskan Native	0
Hispanic	6
Other	0

**Age**
75 to 84	130
85 and over	77
Less than 65	56
65 to 74	131

Average of Total of Conditions of Medicare patients treated by Dr. Marius J. Katilius, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	63
Stroke	14
Ischemic Heart Disease	46
Depression	33
Chronic Kidney Disease	51
Asthma	12
Osteoporosis	12
Heart Failure	38
Chronic Obstructive Pulmonary Disease	27
Diabetes	41
Atrial Fibrillation	24
Dementia	29
Cancer	17

Education & Training

Dr. Marius J. Katilius, MD graduated from Rush Medical College in 1994. He completed residency at Henry Ford Hospital. He is certified by the American Board of Surgery and has a state license in Illinois.

Medical School: Rush Medical College (1994)

Residency: Henry Ford Hospital

Board Certification: American Board of Surgery

Licensed In: Illinois

Affiliations & Hospitals

Dr. Marius J. Katilius, MD is associated with these hospitals and organizations:

Duly Health and Care

Ratings & Reviews

Dr. Marius J. Katilius, MD has an exceptional overall rating with an average of 4.73 out of 5 stars based on 181 ratings. We collect ratings and reviews of Dr. Marius J. Katilius, MD from all over the web to help you find the right in NEW LENOX, IL.

4.73

Overall Rating

(181 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-11-12

Patient verified via Press Ganey

I truly appreciated all the time the provider took with me discussing my pathology reports and my understanding of it. My provider listened to me and all my concerns and questions.

Overall Rating: 5.0 2025-11-05

Patient verified via Press Ganey

I'm very satisfied with this appointment and am very comfortable having Dr Katilius as my doctor for my upcoming procedure.

Overall Rating: 5.0 2025-11-27

Patient verified via Press Ganey

I was really impressed. My wife has her colonoscopy coming up and she is going to request him

Overall Rating: 5.0 2025-07-03

Patient verified via Press Ganey

Excellent medical care for complete visitExtremely satisfied!!

Overall Rating: 5.0 2025-07-03

Patient verified via Press Ganey

Everything went very well.

General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$3,113 Da Vinci Surgical System $3,113
Smith+Nephew, Inc.	$178 Grafix PL PRIME $90	STRAVIX $67	GRAFIX $21
Ferring Pharmaceuticals Inc.	$61 PREPOPIK $61
Covidien Sales LLC	$38 Synthetic Mesh $22	Mesh $16
Mylan Specialty L.P.	$37 Ultiva $37
Other	$287 Mosaic $26	XARELTO $19	AirSeal $18	Regranex $18	NATPARA $16	Other $189

**Types of Payments**
Education	$1,500
Travel and Lodging	$1,183
Food and Beverage	$1,030

Biography

Dr. Marius Katilius practices general surgery, surgical oncology (cancer surgery), and colon & rectal surgery in Joliet, IL, New Lenox, IL, and Chicago, IL. Dr. Katilius's education and training includes medical school at Rush Medical College and residency at Henry Ford Hospital. His areas of expertise include the following: cancer surgery, colorectal surgery procedures, and breast surgery. Patient ratings for Dr. Katilius average 4.5 stars (out of 5). He is professionally affiliated with Duly Health and Care and Advocate Health Care. His practice in New Lenox, IL is open to new patients as reported by Doctor.com.