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Dr. William Floyd Armstrong, MD

Accepting New Patients
(Dr. William F. Armstrong, MD)
Specializes in: Adult Cardiology
Virginia Commonwealth University (VCU) School of Medicine (1976)
Professional interests include: aortic dissection, echocardiogram (echo), heart problems
1425 E Ann Street Floor 3 Reception C
Ann Arbor, MI 48109

Dr. William Floyd Armstrong, MD is a cardiologist in Ann Arbor, MI specializing in adult cardiology. He graduated from Virginia Commonwealth University (VCU) School of Medicine in 1976 and has 50 years of experience. Dr. William Floyd Armstrong, MD is affiliated with Trinity Health, The Regents of the University of Michigan and University of Michigan Health.

View Doctor's Full Profile (734) 647-7321

Office Locations

University of Michigan Health

1425 E Ann Street Floor 3 Reception C
Ann Arbor, MI 48109
(734) 232-4480
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14700 E Old Us Highway 12 Floor 3 Reception C
Chelsea, MI 48118
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1500 E Medical Center Dr Cvc 2161 Space 5853
Ann Arbor, MI 48109
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University of Michigan Health

325 Briarwood Circle Briarwood Building 5
Ann Arbor, MI 48108
(734) 647-4285
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Some issues Dr. William Floyd Armstrong, 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.

In The News 

“CT scans and transesophageal echocardiography are the two best imaging techniques to find dissections, according to Dr. William Armstrong, a cardiology professor at the University of Michigan.”—"Ritter was victim of a rare tear", Los Angeles Times, March 2008

Noteworthy Medicare Patient Procedures Performed by Dr. William Floyd Armstrong, MD in 2023

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

Top 10%

By Volume:

Doppler echocardiography
echocardiogram
ultrasound

In 2023, Dr. William Floyd Armstrong, MD performed more Doppler echocardiography, echocardiogram (echo), and ultrasound (sonogram) procedures for Medicare patients than 90% of providers in related specialties within Michigan.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2012 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1541
doctor visit 512
emergency care 12
hospital care 248
inpatient care 248
minimally invasive procedures 101
stress testing 183
ultrasound (sonogram) 1524

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2013 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1430
doctor visit 495
hospital care 214
inpatient care 214
minimally invasive procedures 98
stress testing 138
ultrasound (sonogram) 1416

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 917
Female 805
Ethnicity
Non-Hispanic White 1474
Black 151
Hispanic 0
Asian 34
Other 33
Native American 0
Age
From 65 to 74 667
From 75 to 84 455
85 and over 218
Less than 65 382

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2013

Hypertension 75
High Cholesterol 60
Stroke 9
Ischemic Heart Disease 63
Depression 29
Chronic Kidney Disease 44
Asthma 12
Osteoperosis 8
Atrial Fibrilation 32
Heart Failure 49
Chronic Obstructive Pulmonary Disease 27
Diabetes 39
Dementia 10
Cancer 15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1082
doctor visit 491
hospital care 129
inpatient care 129
minimally invasive procedures 79
stress testing 115
ultrasound (sonogram) 1070

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 697
Female 635
Ethnicity
Non-Hispanic White 1123
Black 123
Hispanic 0
Asian 39
Other 26
Native American 0
Age
From 65 to 74 534
From 75 to 84 365
85 and over 158
Less than 65 275

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2014

Hypertension 73
High Cholesterol 57
Stroke 10
Ischemic Heart Disease 58
Depression 30
Chronic Kidney Disease 43
Asthma 11
Osteoperosis 9
Atrial Fibrilation 33
Heart Failure 45
Chronic Obstructive Pulmonary Disease 22
Diabetes 39
Dementia 9
Cancer 14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1337
doctor visit 486
hospital care 218
inpatient care 218
minimally invasive procedures 75
stress testing 166
ultrasound (sonogram) 1309

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 1680
Female 1636
Ethnicity
Non-Hispanic White 2772
Black 332
Hispanic 0
Asian 90
Other 60
Native American 0
Age
From 65 to 74 1310
From 75 to 84 950
85 and over 410
Less than 65 646

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2015

Hypertension 75
High Cholesterol 55
Stroke 11
Ischemic Heart Disease 57
Depression 30
Chronic Kidney Disease 43
Asthma 20
Osteoperosis 11
Atrial Fibrilation 31
Heart Failure 44
Chronic Obstructive Pulmonary Disease 24
Diabetes 37
Dementia 11
Cancer 14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2016 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1722
doctor visit 498
hospital care 205
inpatient care 205
minimally invasive procedures 80
stress testing 178
ultrasound (sonogram) 1699

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 999
Female 1032
Ethnicity
Non-Hispanic White 1713
Black 188
Hispanic 19
Asian 66
Other 45
Native American 0
Age
From 65 to 74 815
From 75 to 84 601
85 and over 241
Less than 65 374

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2016

Hypertension 75
High Cholesterol 58
Stroke 10
Ischemic Heart Disease 54
Depression 30
Chronic Kidney Disease 47
Asthma 25
Osteoperosis 9
Atrial Fibrilation 29
Heart Failure 45
Chronic Obstructive Pulmonary Disease 22
Diabetes 37
Dementia 14
Cancer 13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2017 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1721
doctor visit 413
hospital care 220
inpatient care 220
minimally invasive procedures 85
stress testing 152
ultrasound (sonogram) 1700

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 1059
Female 932
Ethnicity
Non-Hispanic White 1629
Black 200
Hispanic 0
Asian 51
Other 75
Native American 0
Age
From 65 to 74 801
From 75 to 84 587
85 and over 255
Less than 65 348

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2017

Hypertension 75
High Cholesterol 54
Stroke 11
Ischemic Heart Disease 56
Depression 29
Chronic Kidney Disease 49
Asthma 10
Osteoperosis 11
Atrial Fibrilation 30
Heart Failure 46
Chronic Obstructive Pulmonary Disease 24
Diabetes 37
Dementia 15
Cancer 14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2018 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1783
doctor visit 358
hospital care 169
inpatient care 169
minimally invasive procedures 85
stress testing 148
ultrasound (sonogram) 1764

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 1054
Female 944
Ethnicity
Non-Hispanic White 1655
Black 180
Hispanic 0
Asian 54
Other 60
Native American 0
Age
From 65 to 74 824
From 75 to 84 583
85 and over 225
Less than 65 366

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2018

Hypertension 75
High Cholesterol 60
Stroke 11
Ischemic Heart Disease 57
Depression 31
Chronic Kidney Disease 49
Asthma 10
Osteoperosis 10
Atrial Fibrilation 29
Heart Failure 46
Chronic Obstructive Pulmonary Disease 23
Diabetes 37
Dementia 15
Cancer 14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2019 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1576
doctor visit 382
hospital care 128
inpatient care 128
minimally invasive procedures 71
stress testing 97
ultrasound (sonogram) 1576

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 936
Female 865
Ethnicity
Non-Hispanic White 1492
Black 147
Hispanic 0
Asian 72
Other 52
Native American 0
Age
From 65 to 74 748
From 75 to 84 544
85 and over 204
Less than 65 305

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2019

Hypertension 75
High Cholesterol 58
Stroke 10
Ischemic Heart Disease 57
Depression 30
Chronic Kidney Disease 49
Asthma 10
Osteoperosis 11
Atrial Fibrilation 28
Heart Failure 47
Chronic Obstructive Pulmonary Disease 21
Diabetes 37
Dementia 14
Cancer 13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2020 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1211
doctor visit 331
hospital care 146
inpatient care 146
minimally invasive procedures 50
stress testing 50
ultrasound (sonogram) 1211

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 755
Female 708
Ethnicity
Non-Hispanic White 1231
Black 119
Hispanic 0
Asian 34
Other 56
Native American 0
Age
From 65 to 74 642
From 75 to 84 418
85 and over 166
Less than 65 237

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2020

Hypertension 75
High Cholesterol 60
Stroke 11
Ischemic Heart Disease 58
Depression 31
Chronic Kidney Disease 52
Asthma 11
Osteoperosis 11
Atrial Fibrilation 28
Heart Failure 47
Chronic Obstructive Pulmonary Disease 21
Diabetes 39
Dementia 14
Cancer 13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2021 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1178
doctor visit 344
hospital care 146
inpatient care 146
minimally invasive procedures 34
stress testing 82
ultrasound (sonogram) 1178

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 728
Female 700
Ethnicity
Non-Hispanic White 1174
Black 115
Hispanic 0
Asian 53
Other 56
Native American 0
Age
From 65 to 74 580
From 75 to 84 469
85 and over 178
Less than 65 201

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2021

Hypertension 73
High Cholesterol 56
Stroke 10
Ischemic Heart Disease 54
Depression 27
Chronic Kidney Disease 46
Asthma 9
Osteoperosis 11
Atrial Fibrilation 28
Heart Failure 43
Chronic Obstructive Pulmonary Disease 16
Diabetes 34
Dementia 13
Cancer 14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI during 2022 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

cardiac procedures 1128
doctor visit 321
hospital care 188
inpatient care 188
minimally invasive procedures 27
stress testing 50
ultrasound (sonogram) 1128

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 703
Female 673
Ethnicity
Non-Hispanic White 1153
Black 90
Hispanic 0
Asian 46
Other 58
Native American 0
Age
From 65 to 74 591
From 75 to 84 455
85 and over 171
Less than 65 159

Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD in 2022

Hypertension 75
High Cholesterol 68
Stroke 14
Ischemic Heart Disease 46
Depression 27
Chronic Kidney Disease 35
Asthma 12
Osteoperosis 15
Atrial Fibrilation 40
Heart Failure 41
Chronic Obstructive Pulmonary Disease 20
Diabetes 32
Dementia 8
Cancer 17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William Floyd Armstrong, MD for Medicare patients.

The highest averages for the top procedures that Dr. William Floyd Armstrong, MD treated as a cardiologist in Ann Arbor, MI were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

cardiac procedures 1428
doctor visit 421
emergency care 12
hospital care 182
inpatient care 182
minimally invasive procedures 71
stress testing 123
ultrasound (sonogram) 1415

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William Floyd Armstrong, MD.

Gender
Male 866
Female 811
Ethnicity
Black / African American 149
Asian / Pacific Islander 49
Non-Hispanic White 1401
Native American / Alaskan Native 0
Hispanic 1
Other 47
Age
75 to 84 493
85 and over 202
Less than 65 299
65 to 74 682

Average of Total of Conditions of Medicare patients treated by Dr. William Floyd Armstrong, MD From 2012 - 2022

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

Hypertension 67
High Cholesterol 53
Stroke 9
Ischemic Heart Disease 50
Depression 26
Chronic Kidney Disease 41
Asthma 11
Osteoporosis 9
Heart Failure 41
Chronic Obstructive Pulmonary Disease 20
Diabetes 33
Atrial Fibrillation 28
Dementia 11
Cancer 12

Education & Training

Dr. William Floyd Armstrong, MD graduated from Virginia Commonwealth University (VCU) School of Medicine in 1976. He completed residency at Virginia Commonwealth University (VCU) Affiliated Hospitals. He is certified by the Cardiovascular Disease, American Board of Internal Medicine and has a state license in Michigan.

Medical School: Virginia Commonwealth University (VCU) School of Medicine (1976)

Residency: Virginia Commonwealth University (VCU) Affiliated Hospitals (1979)

Board Certification: Cardiovascular Disease, American Board of Internal Medicine

Licensed In: Michigan

Affiliations & Hospitals

Dr. William Floyd Armstrong, MD is associated with these hospitals and organizations:

Trinity Health
The Regents of the University of Michigan
University of Michigan Health

Ratings & Reviews

Dr. William Floyd Armstrong, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 235 ratings. We collect ratings and reviews of Dr. William Floyd Armstrong, MD from all over the web to help you find the right in Ann Arbor, MI. 

4.9
Overall Rating
Leave a Review

General Payments

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

Payments by Company
AstraZeneca Pharmaceuticals LP $100
$100
SANOFI-AVENTIS U.S. LLC $20 TOUJEO
$20
Types of Payments
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program $100
Food and Beverage $20

Biography

Dr. William Armstrong is a specialist in adult cardiology in Ann Arbor, MI and Chelsea, MI. On average, patients gave Dr. Armstrong a rating of 5.0 stars (out of 5). Areas of expertise for Dr. Armstrong include heart problems, echocardiogram (echo), and aortic dissection. He is affiliated with Trinity Health and the University of Michigan Health. He welcomes new patients at his office inAnn Arbor, MI as reported by Trinity Health. Before performing his residency at a hospital affiliated with Virginia Commonwealth University (VCU), Dr. Armstrong attended Virginia Commonwealth University (VCU) School of Medicine.

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