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Dr. Mary Lee Zasadil, MD

Accepting New Patients

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Specializes in: Interventional Cardiology, Nuclear Cardiology and Adult Cardiology

St. George's University School of Medicine

Professional interests include: preventive cardiology, heart attack, cholesterol problems (lipid disorders), and more.

4621 Eastpark Boulevard
Madison, WI 53718

(608) 915-0200

Dr. Mary Lee Zasadil, MD is an interventional cardiologist in Madison, WI specializing in interventional cardiology, nuclear cardiology and adult cardiology. She graduated from St. George's University School of Medicine. Dr. Mary Lee Zasadil, MD is affiliated with Fort HealthCare, UnityPoint Health, UW Health and UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC.

Office Locations

4621 Eastpark Boulevard
Madison, WI 53718

(608) 915-0200

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600 Highland Avenue Suite H4/510 Mc 3248
Madison, WI 53792

(608) 263-1530

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611 Sherman Avenue East
Fort Atkinson, WI 53538

(920) 568-6567

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Some issues Dr. Mary Lee Zasadil, MD can help you with:

Heart Attack

A heart attack is a serious medical event that happens when the blood supplying oxygen to the heart is cut off, usually because of a blockage in an artery. This results in damage or death of part of the heart muscle. The heart can heal, but like any part of the body that was injured it leaves a scar. This scar tissue does not contract effectively, so the ability of the heart to pump is lowered after a heart attack.

A heart attack, sometimes called a myocardial infarction, can happen without warning. However there are certain factors that raise the risk of heart attack. Some of these are:

Age
Gender (most heart attack sufferers are male)
A family history of heart attacks
Smoking
Obesity
High cholesterol
High blood pressure
Diabetes
Unhealthy lifestyle choices (lack of exercise, poor diet, too much alcohol or stress)

Heart attacks typically feel like pain or pressure in the chest that can radiate out to the back, arm, or jaw. Some other symptoms can include fatigue or weakness, shortness of breath, sweating, and nausea.

Treatment aims to increase blood flow to the heart muscle by opening up blocked blood vessels. Medications are sometimes used to dissolve clots in the arteries. Aspirin and other medications such as Plavix can thin the blood and make clots less likely to form. Dilators can widen blood vessels to make room for more blood to flow. Doctors can also use a procedure called catheterization to look at the blood vessels around the heart directly, place stents, or widen vessels using angioplasty. In extreme cases bypass surgery can be used to help blood flow better. After recovery, it is important to lead a healthy lifestyle and take any prescribed medications in order to protect the heart.

Noteworthy Medicare Patient Procedures Performed by Dr. Mary Lee Zasadil, MD in 2024

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

Top 10%

By Volume:

cardiac stress testing

stress EKG

By Affordability:

cardiac procedures

In 2024, among providers in related specialties within Wisconsin, Dr. Mary Lee Zasadil, MD performed more cardiac (heart) stress testing, and stress EKG procedures for Medicare patients than 90% of them and she also had a list price for cardiac procedures that was lower than the list prices billed to Medicare by 90% of them. 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:

myocardial perfusion SPECT

nuclear scan

In 2012, Dr. Mary Lee Zasadil, MD performed more myocardial perfusion SPECT, and nuclear scan 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. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2012 were cardiac procedures, stress testing, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	23
cardiac procedures	364
doctor visit	223
hospital care	112
inpatient care	112
lab tests	65
nuclear scan	296
preventive care	18
stress testing	353
ultrasound (sonogram)	11

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2013 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	21
cardiac procedures	267
doctor visit	184
hospital care	64
inpatient care	64
lab tests	49
nuclear scan	233
preventive care	18
stress testing	267

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	247
Female	262

**Ethnicity**
Non-Hispanic White	472
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	234
From 75 to 84	130
85 and over	56
Less than 65	89

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	67
Depression	29
Chronic Kidney Disease	35
Asthma	11
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2014 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	22
cardiac procedures	289
doctor visit	171
hospital care	92
inpatient care	92
lab tests	28
nuclear scan	156
preventive care	16
stress testing	289

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	207
Female	216

**Ethnicity**
Non-Hispanic White	393
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	123
85 and over	51
Less than 65	66

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	66
Depression	27
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	9
Atrial Fibrilation	25
Heart Failure	31
Chronic Obstructive Pulmonary Disease	17
Diabetes	39
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2015 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	23
cardiac procedures	327
doctor visit	201
hospital care	59
inpatient care	59
lab tests	15
nuclear scan	202
preventive care	15
stress testing	327

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	516
Female	494

**Ethnicity**
Non-Hispanic White	920
Black	32
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	450
From 75 to 84	268
85 and over	102
Less than 65	190

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2015

Hypertension	75
High Cholesterol	74
Stroke	4
Ischemic Heart Disease	60
Depression	29
Chronic Kidney Disease	33
Asthma	15
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	30
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2016 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	16
cardiac procedures	463
doctor visit	132
hospital care	77
inpatient care	77
lab tests	12
nuclear scan	234
preventive care	12
stress testing	463

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	234
Female	256

**Ethnicity**
Non-Hispanic White	452
Black	11
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	146
85 and over	46
Less than 65	72

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2016

Hypertension	75
High Cholesterol	73
Stroke	4
Ischemic Heart Disease	61
Depression	31
Chronic Kidney Disease	37
Asthma	23
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	30
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2017 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	23
cardiac procedures	436
doctor visit	202
hospital care	56
inpatient care	56
lab tests	29
nuclear scan	235
preventive care	17
stress testing	436

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	233
Female	235

**Ethnicity**
Non-Hispanic White	436
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	127
85 and over	48
Less than 65	55

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	65
Depression	27
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	11
Atrial Fibrilation	24
Heart Failure	31
Chronic Obstructive Pulmonary Disease	17
Diabetes	34
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2018 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	21
cardiac procedures	379
doctor visit	234
hospital care	133
inpatient care	133
lab tests	11
nuclear scan	209
stress testing	379

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	239
Female	241

**Ethnicity**
Non-Hispanic White	437
Black	14
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	149
85 and over	36
Less than 65	69

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2018

Hypertension	75
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	69
Depression	24
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	32
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2019 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	39
cardiac procedures	375
doctor visit	320
hospital care	123
inpatient care	123
lab tests	72
nuclear scan	201
preventive care	31
stress testing	375

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	284
Female	265

**Ethnicity**
Non-Hispanic White	507
Black	12
Hispanic	0
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	270
From 75 to 84	156
85 and over	58
Less than 65	65

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2019

Hypertension	75
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	65
Depression	27
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	35
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2020 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	22
cardiac procedures	317
doctor visit	171
hospital care	143
inpatient care	143
lab tests	54
nuclear scan	163
preventive care	18
stress testing	317

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	281
Female	287

**Ethnicity**
Non-Hispanic White	521
Black	12
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	268
From 75 to 84	171
85 and over	59
Less than 65	70

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2020

Hypertension	75
High Cholesterol	62
Stroke	5
Ischemic Heart Disease	65
Depression	26
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	37
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2021 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	31
cardiac procedures	319
doctor visit	292
hospital care	66
inpatient care	66
lab tests	59
nuclear scan	172
preventive care	27
stress testing	319

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	292
Female	283

**Ethnicity**
Non-Hispanic White	542
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	173
85 and over	65
Less than 65	59

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	4
Ischemic Heart Disease	67
Depression	24
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	35
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2022 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	44
cardiac procedures	303
doctor visit	229
hospital care	77
inpatient care	77
lab tests	64
nuclear scan	177
preventive care	24
stress testing	303

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	255
Female	248

**Ethnicity**
Non-Hispanic White	464
Black	0
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	157
85 and over	56
Less than 65	48

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	53
Depression	23
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	11
Atrial Fibrilation	34
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2023 were stress testing, cardiac procedures, nuclear scan and hospital care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	49
cardiac procedures	289
doctor visit	158
hospital care	120
inpatient care	120
lab tests	14
nuclear scan	185
preventive care	14
stress testing	289

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	253
Female	203

**Ethnicity**
Non-Hispanic White	423
Black	0
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	146
85 and over	43
Less than 65	29

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	48
Depression	17
Chronic Kidney Disease	25
Asthma	13
Osteoperosis	11
Atrial Fibrilation	30
Heart Failure	28
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI during 2024 were stress testing, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

blood draw	29
cardiac procedures	290
doctor visit	134
hospital care	150
inpatient care	150
nuclear scan	144
stress testing	290

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Male	246
Female	220

**Ethnicity**
Non-Hispanic White	427
Black	0
Hispanic	0
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	166
85 and over	52
Less than 65	27

Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	54
Depression	24
Chronic Kidney Disease	29
Asthma	13
Osteoperosis	14
Atrial Fibrilation	34
Heart Failure	35
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mary Lee Zasadil, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mary Lee Zasadil, MD treated as an interventional cardiologist in Madison, WI were stress testing, cardiac procedures, nuclear scan and hospital care.

blood draw	27
cardiac procedures	339
doctor visit	203
hospital care	97
inpatient care	97
lab tests	39
nuclear scan	200
preventive care	19
stress testing	339
ultrasound (sonogram)	11

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mary Lee Zasadil, MD.

**Gender**
Female	246
Male	252

**Ethnicity**
Black / African American	8
Asian / Pacific Islander	0
Non-Hispanic White	461
Hispanic	0
Native American / Alaskan Native	0
Other	11

**Age**
85 and over	51
75 to 84	147
Less than 65	64
65 to 74	236

Average of Total of Conditions of Medicare patients treated by Dr. Mary Lee Zasadil, MD From 2012 - 2024

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

Hypertension	69
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	56
Depression	23
Chronic Kidney Disease	31
Asthma	10
Osteoporosis	8
Heart Failure	30
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Atrial Fibrillation	23
Dementia	6
Cancer	10

Education & Training

Dr. Mary Lee Zasadil, MD graduated from St. George's University School of Medicine. She completed residency at Stony Brook University Medical Center and Affiliated Hospitals. She is certified by the Cardiovascular Disease, American Board of Internal Medicine and has a state license in Wisconsin.

Medical School: St. George's University School of Medicine

Residency: Stony Brook University Medical Center and Affiliated Hospitals

Board Certification: Cardiovascular Disease, American Board of Internal Medicine

Licensed In: Wisconsin

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Biography

Dr. Mary Zasadil is an adult cardiology, interventional cardiology, and nuclear cardiology specialist. She is conversant in Spanish. Dr. Zasadil's clinical interests include cardioversion, heart attack, and preventive cardiology. She is affiliated with UnityPoint Health, UW Health, and Fort HealthCare. She studied medicine at St. George's University School of Medicine. For her professional training, Dr. Zasadil completed a residency program at a hospital affiliated with Stony Brook University Medical Center. According to UnityPoint Health, she is currently accepting new patients at her office in Madison, WI.