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Dr. Mark Timothy Monahan, MD

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Specializes in: Emergency Medicine

University of Chicago, Pritzker School of Medicine (2000)

Professional interests include: emergency care

615 N Michigan Street
South Bend, IN 46601

(574) 647-7459

Dr. Mark Timothy Monahan, MD is an emergency medicine doctor in Dixon, IL specializing in emergency medicine. He graduated from University of Chicago, Pritzker School of Medicine in 2000 and has 26 years of experience. Dr. Mark Timothy Monahan, MD is affiliated with Beacon Health System and OSF Healthcare.

Office Locations

403 E 1st Street
Dixon, IL 61021

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Sarah's Test Directory

615 N Michigan Street
South Bend, IN 46601

(574) 647-7459

(574) 284-3342

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Noteworthy Medicare Patient Procedures Performed by Dr. Mark Timothy Monahan, MD in 2024

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

Top 25%

By Volume:

emergency room care

In 2012, Dr. Mark Timothy Monahan, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of providers in related specialties within Illinois.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2012 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	761

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2013 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	855

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	383
Female	534

**Ethnicity**
Non-Hispanic White	714
Black	154
Hispanic	37
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	200
From 75 to 84	225
85 and over	205
Less than 65	287

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2013

Hypertension	75
High Cholesterol	52
Stroke	12
Ischemic Heart Disease	44
Depression	35
Chronic Kidney Disease	40
Asthma	13
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	34
Chronic Obstructive Pulmonary Disease	30
Diabetes	37
Dementia	21
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2014 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	758

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	333
Female	467

**Ethnicity**
Non-Hispanic White	617
Black	140
Hispanic	27
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	181
85 and over	173
Less than 65	247

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2014

Hypertension	75
High Cholesterol	46
Stroke	12
Ischemic Heart Disease	40
Depression	38
Chronic Kidney Disease	38
Asthma	11
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	31
Chronic Obstructive Pulmonary Disease	30
Diabetes	35
Dementia	21
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2015 were emergency care, minor procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	851
minor procedures	13
wound repair (e.g. stitches)	13

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	738
Female	988

**Ethnicity**
Non-Hispanic White	1336
Black	318
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	432
From 75 to 84	408
85 and over	324
Less than 65	562

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2015

Hypertension	75
High Cholesterol	53
Stroke	11
Ischemic Heart Disease	44
Depression	40
Chronic Kidney Disease	39
Asthma	23
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	35
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	22
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2016 were emergency care, minor procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	733
minor procedures	27
wound repair (e.g. stitches)	27

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	298
Female	465

**Ethnicity**
Non-Hispanic White	607
Black	111
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	235
From 75 to 84	166
85 and over	122
Less than 65	240

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2016

Hypertension	75
High Cholesterol	54
Stroke	10
Ischemic Heart Disease	44
Depression	39
Chronic Kidney Disease	44
Asthma	33
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	30
Chronic Obstructive Pulmonary Disease	30
Diabetes	38
Dementia	21
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2017 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	646

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	307
Female	366

**Ethnicity**
Non-Hispanic White	545
Black	97
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	202
From 75 to 84	148
85 and over	127
Less than 65	196

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2017

Hypertension	75
High Cholesterol	52
Stroke	10
Ischemic Heart Disease	46
Depression	41
Chronic Kidney Disease	46
Asthma	12
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	34
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2018 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	568

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	251
Female	349

**Ethnicity**
Non-Hispanic White	463
Black	110
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	140
85 and over	118
Less than 65	172

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2018

Hypertension	75
High Cholesterol	56
Stroke	12
Ischemic Heart Disease	40
Depression	37
Chronic Kidney Disease	48
Asthma	11
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	33
Chronic Obstructive Pulmonary Disease	27
Diabetes	39
Dementia	27
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2019 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	776

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	311
Female	455

**Ethnicity**
Non-Hispanic White	648
Black	84
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	192
85 and over	142
Less than 65	211

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2019

Hypertension	75
High Cholesterol	62
Stroke	10
Ischemic Heart Disease	46
Depression	44
Chronic Kidney Disease	52
Asthma	10
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	36
Chronic Obstructive Pulmonary Disease	32
Diabetes	38
Dementia	23
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2020 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	552

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	258
Female	281

**Ethnicity**
Non-Hispanic White	483
Black	31
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	136
85 and over	95
Less than 65	130

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2020

Hypertension	75
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	45
Depression	39
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	36
Chronic Obstructive Pulmonary Disease	25
Diabetes	34
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2021 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	531

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	238
Female	288

**Ethnicity**
Non-Hispanic White	461
Black	34
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	143
85 and over	86
Less than 65	132

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2021

Hypertension	75
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	45
Depression	36
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	17
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2022 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	430

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	215
Female	252

**Ethnicity**
Non-Hispanic White	417
Black	30
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	138
85 and over	90
Less than 65	80

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2022

Hypertension	75
High Cholesterol	70
Stroke	15
Ischemic Heart Disease	40
Depression	34
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	13
Atrial Fibrilation	27
Heart Failure	31
Chronic Obstructive Pulmonary Disease	26
Diabetes	38
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2023 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	426

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	204
Female	234

**Ethnicity**
Non-Hispanic White	395
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	130
85 and over	96
Less than 65	84

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2023

Hypertension	75
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	40
Depression	31
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	11
Atrial Fibrilation	29
Heart Failure	29
Chronic Obstructive Pulmonary Disease	25
Diabetes	32
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL during 2024 were emergency care.

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

emergency care	435

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	198
Female	240

**Ethnicity**
Non-Hispanic White	400
Black	17
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	138
From 75 to 84	131
85 and over	87
Less than 65	82

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2024

Hypertension	75
High Cholesterol	70
Stroke	13
Ischemic Heart Disease	38
Depression	34
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	14
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark Timothy Monahan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Timothy Monahan, MD treated as an emergency medicine doctor in Dixon, IL were emergency care, minor procedures and wound repair (e.g. stitches).

emergency care	640
minor procedures	20
wound repair (e.g. stitches)	20

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark Timothy Monahan, MD.

**Gender**
Male	287
Female	378

**Ethnicity**
Black / African American	88
Asian / Pacific Islander	0
Non-Hispanic White	545
Native American / Alaskan Native	0
Hispanic	13
Other	0

**Age**
75 to 84	164
85 and over	128
Less than 65	186
65 to 74	186

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

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

Hypertension	69
High Cholesterol	54
Stroke	10
Ischemic Heart Disease	39
Depression	34
Chronic Kidney Disease	39
Asthma	12
Osteoporosis	9
Heart Failure	30
Chronic Obstructive Pulmonary Disease	25
Diabetes	33
Atrial Fibrillation	18
Dementia	19
Cancer	11

Education & Training

Dr. Mark Timothy Monahan, MD graduated from University of Chicago, Pritzker School of Medicine in 2000. He completed residency at University of Illinois at Chicago Affiliated Hospitals. He is certified by the American Board of Emergency Medicine and has a state license in Illinois.

Medical School: University of Chicago, Pritzker School of Medicine (2000)

Residency: University of Illinois at Chicago Affiliated Hospitals (2003)

Board Certification: American Board of Emergency Medicine (2004)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Mark Timothy Monahan, MD is associated with these hospitals and organizations:

Beacon Health System

OSF Healthcare

Ratings & Reviews

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General Payments

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

**Payments by Company**
Genentech USA, Inc.	$195 Activase $125	$71
Vapotherm Inc	$22 VAPOTHERM $22
Myovant Sciences Inc.	$13 ORGOVYX $13
Janssen Pharmaceuticals, Inc	$12 XARELTO $12
UCB, Inc.	$12 Vimpat $12
Other	$22 Praxbind $11	TEFLARO $10

**Types of Payments**
Food and Beverage	$277

Biography

Dr. Mark Monahan is an emergency medicine specialist. He attended the University of Chicago, Pritzker School of Medicine and then went on to complete his residency at a hospital affiliated with the University of Illinois at Chicago. His areas of expertise include emergency care. Dr. Monahan is professionally affiliated with OSF Healthcare. OSF Healthcare reports that he is accepting new patients at his office in.

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Dr. Mark Timothy Monahan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Timothy Monahan, MD in 2024

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Mark Timothy Monahan, 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 Timothy Monahan, MD From 2012 - 2024

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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Other Providers in Dixon, IL