In 2012, Dr. Mark Stephen Fedder, MD had a list price for biopsy, cancer prevention, cancer screening, colon biopsy, colonoscopy, colonoscopy with biopsy, colonoscopy with lesion removal, colorectal cancer screening, diagnostic colonoscopy, diagnostic EGD, diagnostic endoscopy, diagnostic procedures, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, endoscopy, esophagogastroduodenoscopy (EGD), gastrointestinal biopsy, gastrointestinal (GI) endoscopy, gastrointestinal procedures, lower endoscopy, minimally invasive procedures, preventive care, removal of lesion (e.g. growth), screening colonoscopy, screening test, therapeutic colonoscopy, therapeutic EGD, therapeutic endoscopy, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2012 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	179
doctor visit	488
esophageal dilation	46
gastrointestinal procedures	658
hospital care	476
inpatient care	476
minimally invasive procedures	658
preventive care	290
removal of lesion (e.g. growth)	179

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2013 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	14
catheterization	14
diagnostic procedures	193
doctor visit	444
esophageal dilation	50
gastrointestinal procedures	676
hospital care	521
inpatient care	521
minimally invasive procedures	676
preventive care	289
removal of lesion (e.g. growth)	193

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	346
Female	454

**Ethnicity**
Non-Hispanic White	749
Black	26
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	370
From 75 to 84	229
85 and over	112
Less than 65	89

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2013

Hypertension	73
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	25
Chronic Obstructive Pulmonary Disease	20
Diabetes	30
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2014 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	15
catheterization	15
diagnostic procedures	167
doctor visit	463
esophageal dilation	59
gastrointestinal procedures	627
hospital care	505
inpatient care	505
minimally invasive procedures	627
preventive care	266
removal of lesion (e.g. growth)	167

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	318
Female	454

**Ethnicity**
Non-Hispanic White	727
Black	28
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	241
85 and over	107
Less than 65	108

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2014

Hypertension	75
High Cholesterol	62
Stroke	6
Ischemic Heart Disease	40
Depression	29
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2015 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	20
catheterization	20
diagnostic procedures	195
doctor visit	501
esophageal dilation	58
gastrointestinal procedures	575
hospital care	450
inpatient care	450
minimally invasive procedures	575
preventive care	218
removal of lesion (e.g. growth)	195

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	630
Female	804

**Ethnicity**
Non-Hispanic White	1336
Black	58
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	632
From 75 to 84	400
85 and over	216
Less than 65	186

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2015

Hypertension	75
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	37
Depression	34
Chronic Kidney Disease	31
Asthma	15
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	26
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2016 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	14
catheterization	14
diagnostic procedures	215
doctor visit	441
esophageal dilation	54
gastrointestinal procedures	527
hospital care	499
inpatient care	499
minimally invasive procedures	527
preventive care	182
removal of lesion (e.g. growth)	215

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	322
Female	375

**Ethnicity**
Non-Hispanic White	655
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	196
85 and over	101
Less than 65	84

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	36
Depression	28
Chronic Kidney Disease	36
Asthma	23
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	22
Diabetes	31
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2017 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	17
catheterization	17
diagnostic procedures	227
doctor visit	461
esophageal dilation	57
gastrointestinal procedures	566
hospital care	526
inpatient care	526
minimally invasive procedures	566
preventive care	201
removal of lesion (e.g. growth)	227

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	327
Female	417

**Ethnicity**
Non-Hispanic White	699
Black	25
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	345
From 75 to 84	218
85 and over	95
Less than 65	86

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	41
Depression	33
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2018 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	247
doctor visit	440
esophageal dilation	57
gastrointestinal procedures	560
hospital care	489
inpatient care	489
minimally invasive procedures	560
preventive care	198
removal of lesion (e.g. growth)	247

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	328
Female	384

**Ethnicity**
Non-Hispanic White	659
Black	32
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	220
85 and over	82
Less than 65	82

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2018

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	39
Depression	34
Chronic Kidney Disease	40
Asthma	6
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2019 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	232
doctor visit	438
esophageal dilation	66
gastrointestinal procedures	544
hospital care	347
inpatient care	347
minimally invasive procedures	544
preventive care	199
removal of lesion (e.g. growth)	232

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	295
Female	341

**Ethnicity**
Non-Hispanic White	592
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	309
From 75 to 84	193
85 and over	67
Less than 65	67

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	41
Depression	31
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2020 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

anastomosis	11
catheterization	11
diagnostic procedures	219
doctor visit	318
esophageal dilation	57
gastrointestinal procedures	455
hospital care	438
inpatient care	438
minimally invasive procedures	455
preventive care	120
removal of lesion (e.g. growth)	219

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	263
Female	311

**Ethnicity**
Non-Hispanic White	521
Black	33
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	272
From 75 to 84	176
85 and over	78
Less than 65	48

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	46
Asthma	6
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	174
doctor visit	116
esophageal dilation	33
gastrointestinal procedures	311
hospital care	156
inpatient care	156
minimally invasive procedures	311
preventive care	119
removal of lesion (e.g. growth)	174

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	172
Female	205

**Ethnicity**
Non-Hispanic White	351
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	118
85 and over	34
Less than 65	20

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	33
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	37
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	235
doctor visit	82
esophageal dilation	27
gastrointestinal procedures	425
hospital care	191
inpatient care	191
minimally invasive procedures	425
preventive care	156
removal of lesion (e.g. growth)	235

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	229
Female	247

**Ethnicity**
Non-Hispanic White	444
Black	0
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	158
85 and over	34
Less than 65	30

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	20
Depression	17
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2023 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	216
doctor visit	105
esophageal dilation	39
gastrointestinal procedures	372
hospital care	224
inpatient care	224
minimally invasive procedures	372
preventive care	131
removal of lesion (e.g. growth)	216

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	206
Female	237

**Ethnicity**
Non-Hispanic White	411
Black	0
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	138
85 and over	44
Less than 65	31

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	23
Depression	21
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	10
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	7
Cancer	19

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL during 2024 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

diagnostic procedures	59
gastrointestinal procedures	107
minimally invasive procedures	107
preventive care	48
removal of lesion (e.g. growth)	59

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Male	43
Female	68

**Age**
From 65 to 74	71
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2024

Hypertension	63
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	0
Depression	12
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	22
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark Stephen Fedder, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Stephen Fedder, MD treated as a gastroenterologist in Maryville, IL were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

anastomosis	15
catheterization	15
diagnostic procedures	196
doctor visit	358
esophageal dilation	50
gastrointestinal procedures	492
hospital care	401
inpatient care	401
minimally invasive procedures	492
preventive care	185
removal of lesion (e.g. growth)	196

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark Stephen Fedder, MD.

**Gender**
Female	330
Male	267

**Ethnicity**
Black / African American	19
Asian / Pacific Islander	0
Non-Hispanic White	549
Hispanic	0
Native American / Alaskan Native	0
Other	4

**Age**
85 and over	74
75 to 84	175
Less than 65	63
65 to 74	280

Average of Total of Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mark Stephen Fedder, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	68
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	28
Asthma	7
Osteoporosis	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Atrial Fibrillation	13
Cancer	13
Dementia	10

Education & Training

He has a state license in Illinois.

Licensed In: Illinois

Ratings & Reviews

Dr. Mark Stephen Fedder, MD has an average of 1.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Mark Stephen Fedder, MD from all over the web to help you find the right in Maryville, IL.

Overall Rating

(1 Rating)

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General Payments

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

**Payments by Company**
AbbVie Inc.	$734 Rinvoq $303	Skyrizi $174	LINZESS $124	Mavyret $65	Creon $48	Other $20
Janssen Biotech, Inc.	$673 STELARA $673
AbbVie, Inc.	$334 Viekira $111	Creon $14	Duopa $5	$203
Salix Pharmaceuticals, Ltd	$233 Xifaxan 550 mg $97	XIFAXAN 550 MG TABLETS $80	Uceris $40	XIFAXAN - 550MG $12	Relistor $5
Takeda Pharmaceuticals U.S.A., Inc.	$226 ENTYVIO $157	GATTEX $46	$23
Other	$1,864 VIBERZI $203	XIFAXAN $165	XELJANZ $157	SUCRAID $108	WallFlex $101	Other $1,131

**Types of Payments**
Food and Beverage	$3,656
Education	$354
Gift	$53

Biography

Dr. Mark Fedder, who practices in Maryville, IL, is a medical specialist in adult gastroenterology. Dr. Fedder has obtained a license to practice in Illinois.

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Dr. Mark Stephen Fedder, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Stephen Fedder, MD in 2024

By Affordability:

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. Mark Stephen Fedder, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Stephen Fedder, 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. Mark Stephen Fedder, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

Other Providers in Maryville, IL