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Dr. Maryl R. Johnson, MD, FACC

Accepting New Patients

(No ratings)

Specializes in: Advanced Heart Failure and Transplant Cardiology, Transplant Medicine and Adult Cardiology
University of Iowa, Carver College of Medicine
Professional interests include: transplant procedures, heart transplant, heart failure, and more.
1340 Charles Street Suite 300
Rockford, IL 61104

Dr. Maryl R. Johnson, MD, FACC is a cardiologist in Marshfield, WI specializing in advanced heart failure and transplant cardiology, transplant medicine and adult cardiology. She graduated from University of Iowa, Carver College of Medicine. Dr. Maryl R. Johnson, MD, FACC is affiliated with U.S. Department of Veterans Affairs, UnityPoint Health, UW Health, SWEDISHAMERICAN HOSPITAL and UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC.

View Doctor's Full Profile (779) 696-8800

Office Locations

UW Health

1000 N Oak Avenue
Marshfield, WI 54449
(608) 915-0180
open_in_new

UW Health

1340 Charles Street Suite 300
Rockford, IL 61104
(779) 696-8800
open_in_new

UW Health

1821 S Webster Avenue
Green Bay, WI 54301
(920) 873-6800
open_in_new
2500 Overlook Terrace William S. Middleton Mvh (607)
Madison, WI 53705
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UnityPoint Health

600 Highland Avenue Suite Mc5710
Madison, WI 53792
(608) 265-0046
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Some issues Dr. Maryl R. Johnson, MD, FACC can help you with:

Heart Problems

The heart is one of the most important organs in the body. This smooth muscle expands and contracts rhythmically an entire lifetime, pumping blood to the lungs and then to every other cell in the body. When heart problems occur, it becomes difficult for the body to get the nutrients and oxygen it needs via the blood. So while there are a variety of illnesses and disorders that affect the heart, most of them cause weakness, exhaustion and shortness of breath. The most common heart conditions include heart disease, angina, arrhythmia, and valve disorders.

Heart disease is the leading cause of death in the United States for both men and women. This includes coronary artery disease, heart attacks, congestive heart failure, and congenital heart disease. Some conditions, such as genetics, cannot be controlled. But there are many other things one can do to lower their risk for heart disease. Controlling high blood pressure and cholesterol levels, reducing or stopping smoking, exercising more and losing weight if needed, and eating a diet low in sodium can all protect the heart.

Angina is a squeezing type of chest pain that happens when the muscles around the heart don't get enough oxygen. It can be regular or infrequent. Usually, angina is caused by coronary heart disease. However, not all chest pain is angina. Chest pain can also be caused by a lung infection or panic attack, for example, so it is important to have any sudden pain checked.

Arrhythmia is the word for when the heart beats too fast, too slow, or irregularly with skipped beats. It can feel frightening, and depending on the type it can be dangerous, but in most cases arrhythmia is not serious and can be treated. It is very common, especially in older adults.

Heart valve problems can happen in any one of the the heart's four valves that keep blood flowing where it needs to go. Babies can be born with problems in their heart valves, or valves can be damaged by infections. The valves can stiffen and become less mobile, or they can stop closing properly and 'leak' when the heart beats. Valve problems can usually be repaired surgically.

Pulmonary Stress Test

There are a number of different types of pulmonary stress tests, but they are all similar in that they measure how exercise affects the level of oxygen in the blood. A pulmonary stress test may be done to identify a specific level of impairment, or to see how well a treatment (such as inhalers or steroids) is working.

During the test, heart rate, blood pressure, oxygen level, and breathing may all be measured. Patients may be asked to wear a mask that measures how much oxygen they breathe in and how much carbon dioxide they breathe out. Then patients will be asked to exercise: It is the exercise that 'stresses' the body. Patients may be asked to walk around for a few minutes, to walk on a treadmill, or to pedal a stationary bicycle as far as they can.

A pulmonary stress test can see how well the heart, lungs, and muscles all work together when someone is moving around. It is used to identify heart disease, problems with lung function, to identify a need for supplemental oxygen, or simply as a measure to see how well a patient is able to tolerate exercise.

While physicians will give their patients specific instructions prior to the test, it is generally a good idea to wear comfortable clothes to exercise in and closed-toe shoes. Patients shouldn't do any heavy exercise right before the test. The test is painless and can be expected to take about an hour.

In The News (see more mentions in the news)

“It's been a struggle for decades to get transplants and associated expenses covered by insurance, said Dr. Maryl Johnson, a heart failure and transplant cardiologist at the University of Wisconsin...”—"No cash? No new heart for you", Oregonlive , December 2018
“It s been a struggle for decades to get transplants and associated expenses covered by insurance, said Dr. Maryl Johnson, a heart failure and transplant cardiologist at the University of Wisconsin...”—"Wallet biopsy : Organ transplant often depends on patient s finances", CNN, December 2018
“When certifying a program for Medicare payments, CMS looks at quality measures, including outcomes and patient volumes, said Maryl Johnson, a University of Wisconsin transplant cardiologist who is...”—"Temple putting lung-transplant program on hiatus", Philadelphia Inquirer, May 2011

Noteworthy Medicare Patient Procedures Performed by Dr. Maryl R. Johnson, MD, FACC in 2023

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

Top 5%

By Affordability:

blood draw
blood draw for lab tests
phlebotomy for lab tests
venipuncture

In 2023, Dr. Maryl R. Johnson, MD, FACC had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Wisconsin. 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.

Top 25%

By Volume:

blood draw
phlebotomy for lab tests

In 2012, Dr. Maryl R. Johnson, MD, FACC performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of providers in related specialties within Wisconsin.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2012 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

cardiac procedures 34
catheterization 34
diagnostic procedures 63
doctor visit 208
hospital care 320
inpatient care 320
minimally invasive procedures 34

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2013 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

cardiac procedures 28
catheterization 28
diagnostic procedures 49
doctor visit 225
hospital care 294
inpatient care 294
minimally invasive procedures 28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 162
Female 62
Ethnicity
Non-Hispanic White 207
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 99
From 75 to 84 39
85 and over 15
Less than 65 71

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2013

Hypertension 75
High Cholesterol 72
Stroke 8
Ischemic Heart Disease 75
Depression 26
Chronic Kidney Disease 65
Asthma 8
Osteoperosis 7
Atrial Fibrilation 33
Heart Failure 75
Chronic Obstructive Pulmonary Disease 22
Diabetes 44
Dementia 7
Cancer 10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2014 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

cardiac procedures 41
catheterization 41
diagnostic procedures 76
doctor visit 191
hospital care 395
inpatient care 395
minimally invasive procedures 41

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 171
Female 60
Ethnicity
Non-Hispanic White 199
Black 21
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 94
From 75 to 84 40
85 and over 15
Less than 65 82

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2014

Hypertension 75
High Cholesterol 67
Stroke 7
Ischemic Heart Disease 72
Depression 30
Chronic Kidney Disease 64
Asthma 9
Osteoperosis 9
Atrial Fibrilation 33
Heart Failure 75
Chronic Obstructive Pulmonary Disease 21
Diabetes 48
Dementia 6
Cancer 10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2015 were hospital care, inpatient care, diagnostic procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

cardiac procedures 36
catheterization 36
diagnostic procedures 63
doctor visit 173
hospital care 402
inpatient care 402
minimally invasive procedures 36

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 300
Female 118
Ethnicity
Non-Hispanic White 366
Black 30
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 174
From 75 to 84 74
85 and over 26
Less than 65 144

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2015

Hypertension 75
High Cholesterol 63
Stroke 8
Ischemic Heart Disease 70
Depression 30
Chronic Kidney Disease 60
Asthma 15
Osteoperosis 7
Atrial Fibrilation 34
Heart Failure 75
Chronic Obstructive Pulmonary Disease 22
Diabetes 39
Dementia 6
Cancer 10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2016 were hospital care, inpatient care, blood draw and minimally invasive procedures.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 21
cardiac procedures 17
catheterization 17
diagnostic procedures 17
doctor visit 150
hospital care 399
inpatient care 399
lab tests 14
minimally invasive procedures 17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 139
Female 52
Ethnicity
Non-Hispanic White 169
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 77
From 75 to 84 0
85 and over 0
Less than 65 73

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2016

Hypertension 75
High Cholesterol 66
Stroke 7
Ischemic Heart Disease 75
Depression 28
Chronic Kidney Disease 71
Asthma 23
Osteoperosis 8
Atrial Fibrilation 34
Heart Failure 75
Chronic Obstructive Pulmonary Disease 24
Diabetes 48
Dementia 9
Cancer 11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2017 were hospital care, inpatient care, blood draw and lab tests.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 21
doctor visit 142
hospital care 461
inpatient care 461
lab tests 15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 144
Female 55
Ethnicity
Non-Hispanic White 179
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 93
From 75 to 84 0
85 and over 0
Less than 65 64

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2017

Hypertension 75
High Cholesterol 69
Stroke 9
Ischemic Heart Disease 75
Depression 36
Chronic Kidney Disease 70
Asthma 10
Osteoperosis 13
Atrial Fibrilation 35
Heart Failure 75
Chronic Obstructive Pulmonary Disease 21
Diabetes 47
Dementia 9
Cancer 12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2018 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 31
diagnostic procedures 28
doctor visit 185
hospital care 316
inpatient care 316
lab tests 49

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 146
Female 55
Ethnicity
Non-Hispanic White 174
Black 15
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 101
From 75 to 84 0
85 and over 0
Less than 65 60

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2018

Hypertension 75
High Cholesterol 64
Stroke 7
Ischemic Heart Disease 70
Depression 30
Chronic Kidney Disease 65
Asthma 0
Osteoperosis 8
Atrial Fibrilation 27
Heart Failure 75
Chronic Obstructive Pulmonary Disease 22
Diabetes 47
Dementia 7
Cancer 12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2019 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 26
diagnostic procedures 21
doctor visit 135
hospital care 318
inpatient care 318
lab tests 94

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 114
Female 67
Ethnicity
Non-Hispanic White 159
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 90
From 75 to 84 0
85 and over 0
Less than 65 52

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2019

Hypertension 75
High Cholesterol 66
Stroke 9
Ischemic Heart Disease 75
Depression 32
Chronic Kidney Disease 67
Asthma 0
Osteoperosis 12
Atrial Fibrilation 29
Heart Failure 75
Chronic Obstructive Pulmonary Disease 25
Diabetes 46
Dementia 8
Cancer 8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2020 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 23
diagnostic procedures 18
doctor visit 108
hospital care 150
inpatient care 150
lab tests 63

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 97
Female 58
Ethnicity
Non-Hispanic White 138
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 81
From 75 to 84 0
85 and over 0
Less than 65 42

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2020

Hypertension 75
High Cholesterol 57
Stroke 0
Ischemic Heart Disease 75
Depression 27
Chronic Kidney Disease 64
Asthma 0
Osteoperosis 12
Atrial Fibrilation 26
Heart Failure 75
Chronic Obstructive Pulmonary Disease 18
Diabetes 46
Dementia 8
Cancer 0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2021 were hospital care, inpatient care, lab tests and blood draw.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 43
diagnostic procedures 38
doctor visit 192
hospital care 216
inpatient care 216
lab tests 101

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 123
Female 57
Ethnicity
Non-Hispanic White 154
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 92
From 75 to 84 0
85 and over 0
Less than 65 47

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2021

Hypertension 73
High Cholesterol 56
Stroke 7
Ischemic Heart Disease 75
Depression 26
Chronic Kidney Disease 69
Asthma 0
Osteoperosis 12
Atrial Fibrilation 21
Heart Failure 75
Chronic Obstructive Pulmonary Disease 21
Diabetes 49
Dementia 11
Cancer 8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI during 2022 were hospital care, inpatient care, blood draw and lab tests.

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

blood draw 82
doctor visit 150
hospital care 162
inpatient care 162
lab tests 62

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 125
Female 48
Ethnicity
Non-Hispanic White 159
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 85
From 75 to 84 0
85 and over 0
Less than 65 43

Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC in 2022

Hypertension 75
High Cholesterol 75
Stroke 8
Ischemic Heart Disease 61
Depression 29
Chronic Kidney Disease 66
Asthma 10
Osteoperosis 15
Atrial Fibrilation 43
Heart Failure 75
Chronic Obstructive Pulmonary Disease 24
Diabetes 47
Dementia 7
Cancer 10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Maryl R. Johnson, MD, FACC for Medicare patients.

The highest averages for the top procedures that Dr. Maryl R. Johnson, MD, FACC treated as a cardiologist in Marshfield, WI were hospital care, inpatient care, lab tests and diagnostic procedures.

blood draw 35
cardiac procedures 31
catheterization 31
diagnostic procedures 41
doctor visit 169
hospital care 312
inpatient care 312
lab tests 56
minimally invasive procedures 31

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC.

Gender
Male 138
Female 57
Ethnicity
Black / African American 6
Asian / Pacific Islander 0
Non-Hispanic White 173
Native American / Alaskan Native 0
Hispanic 0
Other 0
Age
75 to 84 13
85 and over 5
Less than 65 61
65 to 74 89

Average of Total of Conditions of Medicare patients treated by Dr. Maryl R. Johnson, MD, FACC From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Maryl R. Johnson, MD, FACC treated were heart failure, hypertension, ischemic heart disease and chronic kidney disease.

Hypertension 68
High Cholesterol 59
Stroke 6
Ischemic Heart Disease 65
Depression 26
Chronic Kidney Disease 60
Asthma 6
Osteoporosis 9
Heart Failure 68
Chronic Obstructive Pulmonary Disease 20
Diabetes 41
Atrial Fibrillation 28
Dementia 7
Cancer 8

Education & Training

Dr. Maryl R. Johnson, MD, FACC graduated from University of Iowa, Carver College of Medicine. She completed residency at University of Iowa Hospitals & Clinics. She is certified by the Advanced Heart Failure and Transplant Cardiology Cardiovascular Disease Internal Medicine and has a state license in Wisconsin.

Medical School: University of Iowa, Carver College of Medicine

Residency: University of Iowa Hospitals & Clinics

Board Certification: Advanced Heart Failure and Transplant Cardiology Cardiovascular Disease Internal Medicine

Licensed In: Wisconsin

Affiliations & Hospitals

Dr. Maryl R. Johnson, MD, FACC is associated with these hospitals and organizations:

U.S. Department of Veterans Affairs
UnityPoint Health
UW Health
SWEDISHAMERICAN HOSPITAL
UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Maryl R. Johnson, MD, FACC. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
GE Healthcare $7,805
$7,805
St. Jude Medical, Inc. $1,306 HeartMate PHP
$1,306
Novartis Pharmaceuticals Corporation $646 ENTRESTO
$327 		SERELAXIN
$319
Abbott Laboratories $287 THORATEC HEARTMATE 3 LVAS IMPLANT KIT
$149 		HeartMate 3 Left Ventricular Dev
$138
AstraZeneca Pharmaceuticals LP $14 FARXIGA
$14
Types of Payments
Consulting Fee $4,800
Travel and Lodging $3,170
Food and Beverage $2,074
Education $14

Biography

Dr. Maryl Johnson's areas of specialization are transplant medicine, adult cardiology, and advanced heart failure and transplant cardiology. Areas of particular interest for Dr. Johnson include heart transplant, heart failure, and pulmonary stress test. Dr. Johnson is affiliated with UnityPoint Health, UW Health, and U.S. Department of Veterans Affairs. According to UnityPoint Health, she is currently accepting new patients at her office in Madison, WI. Dr. Johnson attended the University of Iowa, Carver College of Medicine and then went on to complete her residency at the University of Iowa Hospitals & Clinics.

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