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Home > MN Providers > Family Physicians & Family Medicine Specialists

Dr. Sean M. Brennan, MD

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Specializes in: Family Medicine and Emergency Medicine

2200 Nw 26th Street
Owatonna, MN 55060

(507) 451-1120

Dr. Sean M. Brennan, MD is a family medicine practitioner in Owatonna, MN specializing in family medicine and emergency medicine.

Office Locations

2200 Nw 26th Street
Owatonna, MN 55060

(507) 451-1120

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Noteworthy Medicare Patient Procedures Performed by Dr. Sean M. Brennan, 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. Sean M. Brennan, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of providers in related specialties within Minnesota.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2012 were emergency care and blood draw.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

blood draw	15
doctor visit	78
emergency care	255

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2013 were emergency care, blood draw and catheterization.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

blood draw	17
catheterization	11
doctor visit	56
emergency care	483

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	243
Female	359

**Ethnicity**
Non-Hispanic White	479
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	155
85 and over	99
Less than 65	179

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	11
Ischemic Heart Disease	64
Depression	41
Chronic Kidney Disease	43
Asthma	11
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	47
Chronic Obstructive Pulmonary Disease	36
Diabetes	44
Dementia	26
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2014 were emergency care, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	284
thoracic (chest) imaging	16
X-rays	16

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	121
Female	176

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	58
85 and over	88
Less than 65	88

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2014

Hypertension	67
High Cholesterol	41
Stroke	6
Ischemic Heart Disease	33
Depression	40
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	26
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2015 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	252

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	206
Female	292

**Ethnicity**
Non-Hispanic White	458
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	134
From 75 to 84	116
85 and over	96
Less than 65	152

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2015

Hypertension	63
High Cholesterol	44
Stroke	7
Ischemic Heart Disease	36
Depression	43
Chronic Kidney Disease	25
Asthma	14
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	19
Diabetes	29
Dementia	18
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2016 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	278

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	97
Female	174

**Ethnicity**
Non-Hispanic White	248
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	51
From 75 to 84	53
85 and over	77
Less than 65	90

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2016

Hypertension	68
High Cholesterol	46
Stroke	8
Ischemic Heart Disease	33
Depression	39
Chronic Kidney Disease	28
Asthma	23
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2017 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	343

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	128
Female	181

**Ethnicity**
Non-Hispanic White	285
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	69
From 75 to 84	70
85 and over	74
Less than 65	96

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2017

Hypertension	73
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	41
Depression	41
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	26
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	23
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2018 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	274

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	113
Female	146

**Ethnicity**
Non-Hispanic White	234
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	60
85 and over	69
Less than 65	77

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2018

Hypertension	73
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	38
Depression	43
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	6
Atrial Fibrilation	17
Heart Failure	31
Chronic Obstructive Pulmonary Disease	23
Diabetes	32
Dementia	24
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2019 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	266

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	125
Female	148

**Ethnicity**
Non-Hispanic White	252
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	74
From 75 to 84	69
85 and over	62
Less than 65	68

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2019

Hypertension	75
High Cholesterol	43
Stroke	6
Ischemic Heart Disease	37
Depression	42
Chronic Kidney Disease	45
Asthma	10
Osteoperosis	7
Atrial Fibrilation	21
Heart Failure	31
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2020 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	255

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	107
Female	145

**Ethnicity**
Non-Hispanic White	240
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	62
85 and over	62
Less than 65	60

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2020

Hypertension	71
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	35
Depression	40
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	11
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	27
Dementia	26
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2021 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	192

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	95
Female	100

**Ethnicity**
Non-Hispanic White	184
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	55
From 75 to 84	60
85 and over	44
Less than 65	36

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2021

Hypertension	69
High Cholesterol	48
Stroke	7
Ischemic Heart Disease	36
Depression	35
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	30
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2022 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	248

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	106
Female	134

**Ethnicity**
Non-Hispanic White	223
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	65
85 and over	48
Less than 65	43

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2022

Hypertension	75
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	35
Depression	35
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	27
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2023 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	224

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	105
Female	126

**Ethnicity**
Non-Hispanic White	215
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	78
85 and over	35
Less than 65	55

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2023

Hypertension	72
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	25
Depression	39
Chronic Kidney Disease	45
Asthma	13
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	35
Dementia	15
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN during 2024 were emergency care.

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

emergency care	264

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	121
Female	140

**Ethnicity**
Non-Hispanic White	248
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	67
85 and over	71
Less than 65	44

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2024

Hypertension	75
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	28
Depression	36
Chronic Kidney Disease	48
Asthma	10
Osteoperosis	15
Atrial Fibrilation	28
Heart Failure	31
Chronic Obstructive Pulmonary Disease	26
Diabetes	36
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Sean M. Brennan, MD for Medicare patients.

The highest averages for the top procedures that Dr. Sean M. Brennan, MD treated as a family medicine practitioner in Owatonna, MN were emergency care, X-rays, thoracic (chest) imaging and blood draw.

blood draw	16
catheterization	11
doctor visit	67
emergency care	278
thoracic (chest) imaging	16
X-rays	16

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Sean M. Brennan, MD.

**Gender**
Male	120
Female	163

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	257
Hispanic	1
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	63
75 to 84	70
Less than 65	76
65 to 74	74

Average of Total of Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Sean M. Brennan, MD treated were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension	65
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	33
Depression	36
Chronic Kidney Disease	35
Asthma	9
Osteoporosis	7
Heart Failure	27
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Atrial Fibrillation	17
Cancer	11
Dementia	18

Education & Training

He has a state license in Nevada.

Licensed In: Nevada

Ratings & Reviews

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General Payments

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

**Payments by Company**
Takeda Pharmaceuticals America, Inc.	$13 Kazano $13

**Types of Payments**
Food and Beverage	$13

Biography

Dr. Sean Brennan specializes in family medicine and emergency medicine and practices in Owatonna, MN. Dr. Brennan obtained a license to practice in Minnesota.

Select Year:

Dr. Sean M. Brennan, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Sean M. Brennan, 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. Sean M. Brennan, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sean M. Brennan, 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. Sean M. Brennan, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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