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Dr. John Allen Key, DO

Accepting New Patients

(66 Ratings)

Specializes in: Adult Cardiology

A.T. Still University, Kirksville College of Osteopathic Medicine (1989)

Professional interests include: pain, coronary artery disease, vascular disease, and more.

6105 Wilson Avenue Sw Suite 101
Wyoming, MI 49418

(616) 608-8300

Dr. John Allen Key, DO is a cardiologist in Wyoming, MI specializing in adult cardiology. He graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 1989 and has 35 years of experience. Dr. John Allen Key, DO is affiliated with Corewell Health and SPECTRUM HEALTH PRIMARY CARE PARTNERS.

Office Locations

Address:

6105 Wilson Avenue Sw Suite 101
Wyoming, MI 49418

Some issues Dr. John Allen Key, DO can help you with:

Coronary Artery Disease

Coronary artery disease (CAD) is the most common type of heart disease. It happens when the blood vessels carrying blood to the heart, called coronary arteries, narrow and harden. This occurs when cholesterol, a type of fat found in the blood, builds up to form plaque, which sticks to the inner walls of the arteries. As plaque accumulates, less blood can flow through the arteries, which may lead to the following:

Angina, which is chest pain that occurs when the heart does not receive enough blood flow.
Heart attack, which happens if the arteries leading to the heart are completely blocked.
Arrhythmia, or irregular heartbeat, which can develop if the heart does not have enough blood supply.
Heart failure, which may occur if a heart attack damages the heart and it becomes too weak to pump enough blood to the rest of the body.

Certain factors may increase risk for the disease, like smoking, lack of exercise, being overweight, high cholesterol, high blood pressure, and diabetes. CAD tends to develop over decades, so it can go undetected until it has become quite severe. A diagnosis may be established using such tests as:

Electrocardiogram (ECG), which records the heart's electrical activity over a period of time. ECGs can detect whether there is enough blood flow to the heart or if a heart attack has occurred.
Echocardiogram (echo), which creates images of the heart using sound waves. Echos can show whether the heart is able to pump blood normally.
Stress tests, where an ECG or echo is combined with exercise, like riding a stationary bike or walking on a treadmill. This test is done to find out if the heart can function properly while performing a strenuous activity.

Treatments for the disease include medications such as vasodilators, like nitroglycerin, which dilates (widens) the coronary arteries. CAD may also be treated by a procedure called angioplasty with stent placement, where a balloon is inflated inside a diseased artery to flatten the plaque deposits against the artery walls, creating more room for blood to flow.

In some severe cases of the disease, multiple arteries may be blocked, and an open heart surgery called coronary artery bypass surgery may be necessary. This operation transplants a vessel from another part of the body to form a graft that goes past the narrowed arteries, thus enabling blood to flow around those arteries.

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.

cardiac procedures	422
catheterization	14
diagnostic procedures	14
doctor visit	494
hospital care	258
inpatient care	230
minimally invasive procedures	13
nuclear scan	69
outpatient care	28
stress testing	197
ultrasound (sonogram)	412
vascular procedures	218

**Gender**
Male	488
Female	491

**Ethnicity**
Non-Hispanic White	884
Black	50
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	333
From 75 to 84	269
85 and over	170
Less than 65	207

Hypertension	75
High Cholesterol	74
Stroke	9
Ischemic Heart Disease	67
Depression	30
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	6
Atrial Fibrilation	25
Heart Failure	41
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	12
Cancer	11

cardiac procedures	674
catheterization	19
diagnostic procedures	19
doctor visit	630
hospital care	236
inpatient care	222
minimally invasive procedures	18
nuclear scan	95
outpatient care	14
stress testing	253
ultrasound (sonogram)	613
vascular procedures	235

**Gender**
Male	606
Female	639

**Ethnicity**
Non-Hispanic White	1124
Black	60
Hispanic	29
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	421
From 75 to 84	363
85 and over	229
Less than 65	232

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	68
Depression	30
Chronic Kidney Disease	43
Asthma	9
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	42
Chronic Obstructive Pulmonary Disease	24
Diabetes	44
Dementia	12
Cancer	10

cardiac procedures	639
catheterization	18
diagnostic procedures	18
doctor visit	541
hospital care	249
inpatient care	250
minimally invasive procedures	17
nuclear scan	105
stress testing	247
ultrasound (sonogram)	490
vascular procedures	134

**Gender**
Male	1060
Female	1126

**Ethnicity**
Non-Hispanic White	1952
Black	124
Hispanic	48
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	782
From 75 to 84	614
85 and over	382
Less than 65	408

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	65
Depression	31
Chronic Kidney Disease	48
Asthma	20
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	42
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	13
Cancer	12

cardiac procedures	531
catheterization	24
diagnostic procedures	24
doctor visit	465
hospital care	152
inpatient care	153
lab tests	52
minimally invasive procedures	23
nuclear scan	85
stress testing	183
ultrasound (sonogram)	404
vascular procedures	85

**Gender**
Male	477
Female	468

**Ethnicity**
Non-Hispanic White	847
Black	57
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	346
From 75 to 84	264
85 and over	176
Less than 65	159

Hypertension	75
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	69
Depression	28
Chronic Kidney Disease	50
Asthma	26
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	43
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	13
Cancer	12

cardiac procedures	649
doctor visit	246
hospital care	180
inpatient care	181
nuclear scan	108
stress testing	226
ultrasound (sonogram)	470

**Gender**
Male	578
Female	623

**Ethnicity**
Non-Hispanic White	1098
Black	53
Hispanic	21
Asian	12
Other	17
Native American	0

**Age**
From 65 to 74	474
From 75 to 84	384
85 and over	181
Less than 65	162

Hypertension	75
High Cholesterol	66
Stroke	9
Ischemic Heart Disease	55
Depression	29
Chronic Kidney Disease	43
Asthma	7
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	37
Chronic Obstructive Pulmonary Disease	25
Diabetes	37
Dementia	12
Cancer	14

cardiac procedures	1292
doctor visit	340
hospital care	287
inpatient care	288
nuclear scan	238
stress testing	442
ultrasound (sonogram)	958
vascular procedures	31

**Gender**
Male	1103
Female	1238

**Ethnicity**
Non-Hispanic White	2103
Black	118
Hispanic	55
Asian	0
Other	47
Native American	0

**Age**
From 65 to 74	922
From 75 to 84	679
85 and over	318
Less than 65	422

Hypertension	75
High Cholesterol	70
Stroke	10
Ischemic Heart Disease	54
Depression	33
Chronic Kidney Disease	45
Asthma	8
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	39
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	14
Cancer	13

cardiac procedures	1182
doctor visit	259
hospital care	250
inpatient care	251
nuclear scan	217
stress testing	392
ultrasound (sonogram)	873
vascular procedures	23

**Gender**
Male	1183
Female	1216

**Ethnicity**
Non-Hispanic White	2159
Black	110
Hispanic	50
Asian	0
Other	52
Native American	0

**Age**
From 65 to 74	991
From 75 to 84	685
85 and over	322
Less than 65	401

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	54
Depression	34
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	9
Atrial Fibrilation	26
Heart Failure	39
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	13
Cancer	14

cardiac procedures	826
doctor visit	254
hospital care	156
inpatient care	157
nuclear scan	146
stress testing	245
ultrasound (sonogram)	621
vascular procedures	5

**Gender**
Male	928
Female	934

**Ethnicity**
Non-Hispanic White	1688
Black	68
Hispanic	41
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	790
From 75 to 84	532
85 and over	254
Less than 65	286

Hypertension	75
High Cholesterol	71
Stroke	10
Ischemic Heart Disease	58
Depression	32
Chronic Kidney Disease	45
Asthma	8
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	40
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	14
Cancer	13

cardiac procedures	1466
cardioversion	13
doctor visit	474
hospital care	261
inpatient care	262
minimally invasive procedures	19
nuclear scan	184
stress testing	333
ultrasound (sonogram)	1185

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. John Allen Key, DO for Medicare patients.

The highest averages for the top procedures that Dr. John Allen Key, DO treated as a cardiologist in Wyoming, MI were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

cardiac procedures	855
cardioversion	13
catheterization	18
diagnostic procedures	18
doctor visit	411
hospital care	226
inpatient care	221
lab tests	52
minimally invasive procedures	19
nuclear scan	138
outpatient care	21
stress testing	280
ultrasound (sonogram)	673
vascular procedures	107

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. John Allen Key, DO.

**Gender**
Male	642
Female	673

**Ethnicity**
Black / African American	64
Asian / Pacific Islander	1
Non-Hispanic White	1185
Native American / Alaskan Native	0
Hispanic	29
Other	21

**Age**
75 to 84	379
85 and over	203
Less than 65	227
65 to 74	505

Average of Total of Conditions of Medicare patients treated by Dr. John Allen Key, DO From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. John Allen Key, DO treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	60
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	49
Depression	24
Chronic Kidney Disease	35
Asthma	9
Osteoporosis	6
Heart Failure	32
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Atrial Fibrillation	21
Cancer	9
Dementia	10

Education & Training

Dr. John Allen Key, DO graduated from A.T. Still University, Kirksville College of Osteopathic Medicine in 1989. He has a state license in Michigan.

Medical School: A.T. Still University, Kirksville College of Osteopathic Medicine (1989)

Licensed In: Michigan

Affiliations & Hospitals

Dr. John Allen Key, DO is associated with these hospitals and organizations:

Corewell Health

SPECTRUM HEALTH PRIMARY CARE PARTNERS

Ratings & Reviews

Dr. John Allen Key, DO has an exceptional overall rating with an average of 4.91 out of 5 stars based on 66 ratings. We collect ratings and reviews of Dr. John Allen Key, DO from all over the web to help you find the right in Wyoming, MI.

4.91

Overall Rating

(66 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2022-03-08