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Dr. John Charles O'Horo, MD, MPH

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Specializes in: Adult Infectious Disease and Adult Critical Care

University of Wisconsin School of Medicine and Public Health (2009)

Professional interests include: extracorporeal membrane oxygenation (ECMO), left ventricular assist device (LVAD)

200 1st Street Sw
Rochester, MN 55905

(507) 284-2511

Dr. John Charles O'Horo, MD, MPH is an adult infectious disease specialist in Rochester, MN specializing in adult infectious disease and adult critical care. He graduated from University of Wisconsin School of Medicine and Public Health in 2009 and has 17 years of experience. Dr. John Charles O'Horo, MD, MPH is affiliated with Mayo Clinic.

Office Locations

200 1st Street Sw
Rochester, MN 55905

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Rochester, MN

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In The News (see more mentions in the news)

“In an invited commentary, John O'Horo, MD, MPH, of the Mayo Clinic in Rochester, Minnesota, noted that it can be relatively easy to demonstrate the benefit of a proposed therapeutic in a critically...”—"Asthma Drug Did Not Reduce Symptom Duration in Mild to Moderate COVID", MedPage Today, October 2024

“"We're not really in a COVID-19 season or flu season, but in a respiratory infection season," said Dr. John O'Horo, an infectious diseases specialist at Mayo Clinic.”—"COVID-19, RSV and flu - season of respiratory infections", Reading Eagle, November 2022

“That appears to be part of a shift in COVID-19 symptoms ushered in by the Omicron variant, said Dr. John O'Horo, an infectious disease physician at the Mayo Clinic in Rochester, Minn.”—"Got COVID? Your symptoms may depend on your vaccination status", Los Angeles Times, October 2022

Noteworthy Medicare Patient Procedures Performed by Dr. John Charles O'Horo, MD, MPH 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

In 2013, Dr. John Charles O'Horo, MD, MPH performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within Minnesota.

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2014

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2014 were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	73
High Cholesterol	73
Stroke	0
Ischemic Heart Disease	68
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	50
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

doctor visit	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Age**
From 65 to 74	26
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2015

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2015 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	63
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	53
Depression	40
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	40
Chronic Obstructive Pulmonary Disease	0
Diabetes	37
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

doctor visit	18
hospital care	73
inpatient care	73

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	59
Female	31

**Age**
From 65 to 74	34
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2016

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2016 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	70
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	50
Depression	41
Chronic Kidney Disease	54
Asthma	32
Osteoperosis	0
Atrial Fibrilation	22
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	38
Dementia	16
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

hospital care	397
inpatient care	397

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	103
Female	68

**Ethnicity**
Non-Hispanic White	158
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	62
85 and over	11
Less than 65	34

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2017

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2017 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	65
Depression	40
Chronic Kidney Disease	70
Asthma	14
Osteoperosis	11
Atrial Fibrilation	39
Heart Failure	56
Chronic Obstructive Pulmonary Disease	35
Diabetes	43
Dementia	22
Cancer	21

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

doctor visit	39
hospital care	201
inpatient care	201

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	72
Female	71

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	41
85 and over	17
Less than 65	33

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2018

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2018 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	75
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	58
Depression	38
Chronic Kidney Disease	66
Asthma	0
Osteoperosis	13
Atrial Fibrilation	29
Heart Failure	52
Chronic Obstructive Pulmonary Disease	28
Diabetes	39
Dementia	25
Cancer	22

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

doctor visit	40
hospital care	192
inpatient care	192

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	119
Female	92

**Ethnicity**
Non-Hispanic White	197
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	55
85 and over	28
Less than 65	41

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2019

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2019 were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	72
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	46
Depression	42
Chronic Kidney Disease	67
Asthma	12
Osteoperosis	13
Atrial Fibrilation	28
Heart Failure	45
Chronic Obstructive Pulmonary Disease	30
Diabetes	37
Dementia	20
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

hospital care	104
inpatient care	104

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	75
Female	69

**Age**
From 65 to 74	55
From 75 to 84	51
85 and over	12
Less than 65	26

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2020

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2020 were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	60
Depression	41
Chronic Kidney Disease	71
Asthma	0
Osteoperosis	10
Atrial Fibrilation	28
Heart Failure	49
Chronic Obstructive Pulmonary Disease	33
Diabetes	47
Dementia	22
Cancer	19

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

hospital care	102
inpatient care	102

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	76
Female	66

**Ethnicity**
Non-Hispanic White	130
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	61
From 75 to 84	33
85 and over	16
Less than 65	32

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2021

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2021 were hypertension, chronic kidney disease, high cholesterol and heart failure.

Hypertension	75
High Cholesterol	69
Stroke	10
Ischemic Heart Disease	45
Depression	39
Chronic Kidney Disease	71
Asthma	10
Osteoperosis	12
Atrial Fibrilation	31
Heart Failure	46
Chronic Obstructive Pulmonary Disease	28
Diabetes	41
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

doctor visit	11
hospital care	81
inpatient care	81

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	73
Female	54

**Age**
From 65 to 74	54
From 75 to 84	34
85 and over	13
Less than 65	26

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2022

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2022 were hypertension, high cholesterol, chronic kidney disease and heart failure.

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	40
Depression	37
Chronic Kidney Disease	52
Asthma	0
Osteoperosis	18
Atrial Fibrilation	43
Heart Failure	47
Chronic Obstructive Pulmonary Disease	36
Diabetes	32
Dementia	13
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

hospital care	120
inpatient care	120

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Male	80
Female	64

**Ethnicity**
Non-Hispanic White	133
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	40
85 and over	17
Less than 65	28

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2023

The most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated during 2023 were high cholesterol, hypertension, chronic kidney disease and heart failure.

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	48
Depression	31
Chronic Kidney Disease	57
Asthma	14
Osteoperosis	19
Atrial Fibrilation	47
Heart Failure	52
Chronic Obstructive Pulmonary Disease	35
Diabetes	39
Dementia	20
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Volume of procedures performed by Dr. John Charles O'Horo, MD, MPH for Medicare patients.

The highest averages for the top procedures that Dr. John Charles O'Horo, MD, MPH treated as an adult infectious disease specialist in Rochester, MN were hospital care and inpatient care.

doctor visit	24
hospital care	158
inpatient care	158

Average Medicare Patient Data From 2014 - 2023

Information about Medicare patients treated by Dr. John Charles O'Horo, MD, MPH.

**Gender**
Female	51
Male	65

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	74
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	11
75 to 84	34
Less than 65	22
65 to 74	49

Average of Total of Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH From 2014 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. John Charles O'Horo, MD, MPH treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	72
High Cholesterol	66
Stroke	7
Ischemic Heart Disease	53
Depression	34
Chronic Kidney Disease	56
Asthma	8
Osteoporosis	9
Heart Failure	48
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Atrial Fibrillation	26
Cancer	13
Dementia	15

Education & Training

Dr. John Charles O'Horo, MD, MPH graduated from University of Wisconsin School of Medicine and Public Health in 2009. He completed residency at Aurora Health Care. He is certified by the Internal Medicine American Board of Internal Medicine and has a state license in Wisconsin.

Medical School: University of Wisconsin School of Medicine and Public Health (2009)

Residency: Aurora Health Care (2012)

Board Certification: Internal Medicine American Board of Internal Medicine (2012)

Licensed In: Wisconsin

Affiliations & Hospitals

Dr. John Charles O'Horo, MD, MPH is associated with these hospitals and organizations:

Mayo Clinic

Ratings & Reviews

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Biography

Dr. John O'Horo is a specialist in adult critical care and adult infectious disease. His areas of expertise include the following: extracorporeal membrane oxygenation (ECMO) and left ventricular assist device (LVAD). Dr. O'Horo is a graduate of the University of Wisconsin School of Medicine and Public Health. His medical residency was performed at Aurora Health Care. Dr. O'Horo is affiliated with Mayo Clinic.

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Dr. John Charles O'Horo, MD, MPH

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. John Charles O'Horo, MD, MPH in 2023

By Volume:

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Average Medicare Patient Data From 2014 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. John Charles O'Horo, MD, MPH From 2014 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Biography

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