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Dr. Robert B. Stewart, MD

Accepting New Patients

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Specializes in: Adult Cardiology

University of Washington School of Medicine (1988)

Professional interests include: chronic obstructive pulmonary disease (COPD), pain, pneumonia, and more.

307 S 13th Street Suite 300
Mount Vernon, WA 98274

(360) 336-9757

Dr. Robert B. Stewart, MD is a cardiologist in Mount Vernon, WA specializing in adult cardiology. He graduated from University of Washington School of Medicine in 1988 and has 38 years of experience.

Office Locations

307 S 13th Street Suite 300
Mount Vernon, WA 98274

(360) 336-9757

(360) 336-2088

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Some issues Dr. Robert B. Stewart, MD 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.

Noteworthy Medicare Patient Procedures Performed by Dr. Robert B. Stewart, MD in 2023

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

Top 5%

By Affordability:

myocardial perfusion SPECT

nuclear scan

nuclear stress test

SPECT scan

In 2023, Dr. Robert B. Stewart, MD had a list price for myocardial perfusion SPECT, nuclear scan, nuclear stress test (myocardial perfusion imaging), and SPECT scan that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Washington. 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 10%

By Affordability:

cardiac imaging

color Doppler echocardiography

Doppler echocardiography

spectral Doppler echocardiography

In 2023, Dr. Robert B. Stewart, MD had a list price for cardiac imaging, color Doppler echocardiography, Doppler echocardiography, and spectral Doppler echocardiography that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Washington. 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 Affordability:

echocardiogram

In 2012, Dr. Robert B. Stewart, MD had a list price for echocardiogram (echo) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Washington. 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2012 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

ambulatory monitoring	39
cardiac procedures	470
doctor visit	645
hospital care	92
inpatient care	92
nuclear scan	61
stress testing	74
ultrasound (sonogram)	370

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2013 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	320
doctor visit	576
hospital care	95
inpatient care	95
nuclear scan	75
stress testing	95
ultrasound (sonogram)	245

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	570
Female	474

**Ethnicity**
Non-Hispanic White	975
Black	0
Hispanic	28
Asian	12
Other	16
Native American	0

**Age**
From 65 to 74	336
From 75 to 84	401
85 and over	209
Less than 65	98

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2013

Hypertension	75
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	57
Depression	24
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	5
Atrial Fibrilation	33
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2014 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	426
doctor visit	451
hospital care	63
inpatient care	63
nuclear scan	81
stress testing	81
ultrasound (sonogram)	345

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	699
Female	670

**Ethnicity**
Non-Hispanic White	1274
Black	0
Hispanic	49
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	390
From 75 to 84	533
85 and over	274
Less than 65	172

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2014

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	52
Depression	27
Chronic Kidney Disease	34
Asthma	7
Osteoperosis	6
Atrial Fibrilation	31
Heart Failure	36
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2015 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	460
doctor visit	442
hospital care	59
inpatient care	59
nuclear scan	65
stress testing	65
ultrasound (sonogram)	395

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	2318
Female	2428

**Ethnicity**
Non-Hispanic White	4388
Black	0
Hispanic	158
Asian	62
Other	68
Native American	0

**Age**
From 65 to 74	1448
From 75 to 84	1636
85 and over	1066
Less than 65	596

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2015

Hypertension	75
High Cholesterol	57
Stroke	10
Ischemic Heart Disease	50
Depression	28
Chronic Kidney Disease	37
Asthma	15
Osteoperosis	6
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	34
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	477
doctor visit	470
hospital care	85
inpatient care	85
nuclear scan	83
stress testing	98
ultrasound (sonogram)	394

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	1574
Female	1581

**Ethnicity**
Non-Hispanic White	2896
Black	13
Hispanic	124
Asian	37
Other	44
Native American	41

**Age**
From 65 to 74	1006
From 75 to 84	1072
85 and over	670
Less than 65	407

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2016

Hypertension	75
High Cholesterol	55
Stroke	10
Ischemic Heart Disease	47
Depression	26
Chronic Kidney Disease	37
Asthma	25
Osteoperosis	6
Atrial Fibrilation	26
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	332
doctor visit	537
hospital care	69
inpatient care	69
nuclear scan	79
stress testing	92
ultrasound (sonogram)	253

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	1471
Female	1515

**Ethnicity**
Non-Hispanic White	2706
Black	18
Hispanic	142
Asian	35
Other	46
Native American	39

**Age**
From 65 to 74	960
From 75 to 84	1022
85 and over	639
Less than 65	365

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2017

Hypertension	75
High Cholesterol	59
Stroke	11
Ischemic Heart Disease	52
Depression	29
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	6
Atrial Fibrilation	30
Heart Failure	35
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2018 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	366
doctor visit	379
hospital care	39
inpatient care	39
nuclear scan	52
stress testing	70
ultrasound (sonogram)	314

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	1002
Female	1001

**Ethnicity**
Non-Hispanic White	1792
Black	12
Hispanic	90
Asian	22
Other	49
Native American	38

**Age**
From 65 to 74	610
From 75 to 84	715
85 and over	428
Less than 65	250

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2018

Hypertension	75
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	51
Depression	30
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	37
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	597
doctor visit	372
hospital care	23
inpatient care	23
nuclear scan	112
stress testing	134
ultrasound (sonogram)	485

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	1099
Female	1135

**Ethnicity**
Non-Hispanic White	2007
Black	17
Hispanic	105
Asian	25
Other	48
Native American	32

**Age**
From 65 to 74	738
From 75 to 84	757
85 and over	468
Less than 65	271

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2019

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	52
Depression	30
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	8
Atrial Fibrilation	30
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	17
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	431
doctor visit	281
hospital care	48
inpatient care	48
nuclear scan	68
stress testing	79
ultrasound (sonogram)	363

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	852
Female	903

**Ethnicity**
Non-Hispanic White	1593
Black	15
Hispanic	64
Asian	12
Other	50
Native American	21

**Age**
From 65 to 74	569
From 75 to 84	625
85 and over	353
Less than 65	208

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2020

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	53
Depression	30
Chronic Kidney Disease	42
Asthma	9
Osteoperosis	6
Atrial Fibrilation	28
Heart Failure	35
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	448
doctor visit	392
hospital care	53
inpatient care	53
nuclear scan	93
stress testing	117
ultrasound (sonogram)	355

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	879
Female	828

**Ethnicity**
Non-Hispanic White	1524
Black	14
Hispanic	73
Asian	17
Other	51
Native American	28

**Age**
From 65 to 74	566
From 75 to 84	606
85 and over	363
Less than 65	172

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2021

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	53
Depression	28
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	8
Atrial Fibrilation	30
Heart Failure	35
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	162
doctor visit	470
nuclear scan	61
stress testing	61
ultrasound (sonogram)	101

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	736
Female	797

**Ethnicity**
Non-Hispanic White	1388
Black	0
Hispanic	56
Asian	0
Other	37
Native American	23

**Age**
From 65 to 74	448
From 75 to 84	591
85 and over	362
Less than 65	132

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	44
Depression	26
Chronic Kidney Disease	33
Asthma	11
Osteoperosis	14
Atrial Fibrilation	40
Heart Failure	35
Chronic Obstructive Pulmonary Disease	20
Diabetes	32
Dementia	14
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA during 2023 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

cardiac procedures	122
doctor visit	429
nuclear scan	49
stress testing	49
ultrasound (sonogram)	73

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Male	650
Female	610

**Ethnicity**
Non-Hispanic White	1143
Black	0
Hispanic	39
Asian	0
Other	45
Native American	18

**Age**
From 65 to 74	405
From 75 to 84	492
85 and over	270
Less than 65	93

Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	30
Asthma	13
Osteoperosis	14
Atrial Fibrilation	40
Heart Failure	35
Chronic Obstructive Pulmonary Disease	22
Diabetes	31
Dementia	14
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Robert B. Stewart, MD for Medicare patients.

The highest averages for the top procedures that Dr. Robert B. Stewart, MD treated as a cardiologist in Mount Vernon, WA were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

ambulatory monitoring	39
cardiac procedures	384
doctor visit	453
hospital care	62
inpatient care	62
nuclear scan	73
stress testing	84
ultrasound (sonogram)	307

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Robert B. Stewart, MD.

**Gender**
Female	995
Male	987

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	18
Non-Hispanic White	1807
Hispanic	77
Native American / Alaskan Native	20
Other	39

**Age**
85 and over	425
75 to 84	704
Less than 65	230
65 to 74	623

Average of Total of Conditions of Medicare patients treated by Dr. Robert B. Stewart, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	57
Stroke	9
Ischemic Heart Disease	46
Depression	25
Chronic Kidney Disease	34
Asthma	10
Osteoporosis	7
Heart Failure	32
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Atrial Fibrillation	28
Dementia	14
Cancer	12

Education & Training

Dr. Robert B. Stewart, MD graduated from University of Washington School of Medicine in 1988. He completed residency at University of Washington Affiliated Hospitals. He has a state license in Washington.

Medical School: University of Washington School of Medicine (1988)

Residency: University of Washington Affiliated Hospitals

Licensed In: Washington

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General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$255 Heart Valves $140	Pacemakers $61	Implantable Cardioverter Defibrillators (ICDs) $54
Novartis Pharmaceuticals Corporation	$202 Gilenya $124	ENTRESTO $79
ACUMED LLC	$86 INnate Implant $86
Boston Scientific Corporation	$71 WATCHMAN Access System $71
Regeneron Pharmaceuticals, Inc.	$62 PRALUENT (alirocumab) Injection $62
Other	$60 JARDIANCE $60

**Types of Payments**
Food and Beverage	$737

Biography

Dr. Robert Stewart sees patients in Mount Vernon, WA. His medical specialty is adult cardiology. Dr. Stewart's areas of clinical interest consist of heart problems, pain, and pneumonia. He is a graduate of the University of Washington School of Medicine. He completed his residency training at Duke University Hospital and a hospital affiliated with the University of Washington. According to Doctor.com, new patients are welcome to contact his office in.