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Dr. Marcus McKenzie, MD

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Specializes in: Adult Cardiology

University of Texas Medical Branch School of Medicine (1998)

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

6601 Preston Road
Plano, TX 75024

(469) 800-6300

Dr. Marcus McKenzie, MD is a cardiologist in Plano, TX specializing in adult cardiology. He graduated from University of Texas Medical Branch School of Medicine in 1998 and has 26 years of experience. Dr. Marcus McKenzie, MD is affiliated with HealthTexas Provider Network and Baylor Scott & White Health.

Office Locations

Address:

6601 Preston Road
Plano, TX 75024

Address:

111 S Preston Road Suite 10
Prosper, TX 75078

Some issues Dr. Marcus McKenzie, MD 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.

ambulatory monitoring	77
blood draw	130
cardiac procedures	1517
cardioversion	11
doctor visit	2033
hospital care	236
inpatient care	236
lab tests	1285
minimally invasive procedures	31
nuclear scan	303
stress testing	751
ultrasound (sonogram)	822

**Gender**
Male	1328
Female	1212

**Ethnicity**
Non-Hispanic White	2281
Black	71
Hispanic	93
Asian	54
Other	0
Native American	0

**Age**
From 65 to 74	1194
From 75 to 84	854
85 and over	332
Less than 65	160

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	61
Depression	21
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	7
Atrial Fibrilation	37
Heart Failure	34
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	12
Cancer	11

ambulatory monitoring	26
blood draw	290
cardiac procedures	1310
doctor visit	1572
hospital care	196
inpatient care	196
lab tests	810
minimally invasive procedures	24
nuclear scan	262
stress testing	672
ultrasound (sonogram)	760

**Gender**
Male	1073
Female	902

**Ethnicity**
Non-Hispanic White	1768
Black	59
Hispanic	68
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	966
From 75 to 84	703
85 and over	219
Less than 65	87

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	61
Depression	18
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	7
Atrial Fibrilation	39
Heart Failure	33
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	10
Cancer	10

ambulatory monitoring	43
blood draw	379
cardiac procedures	1414
doctor visit	1000
hospital care	163
inpatient care	163
lab tests	247
minimally invasive procedures	14
nuclear scan	170
stress testing	604
ultrasound (sonogram)	906

**Gender**
Male	1954
Female	1796

**Ethnicity**
Non-Hispanic White	3320
Black	124
Hispanic	130
Asian	100
Other	0
Native American	0

**Age**
From 65 to 74	1856
From 75 to 84	1316
85 and over	428
Less than 65	150

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	59
Depression	20
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	8
Atrial Fibrilation	34
Heart Failure	29
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	9
Cancer	13

ambulatory monitoring	18
blood draw	325
cardiac procedures	1401
cardioversion	10
doctor visit	819
hospital care	123
inpatient care	123
lab tests	337
minimally invasive procedures	23
nuclear scan	112
stress testing	564
ultrasound (sonogram)	941

**Gender**
Male	1010
Female	872

**Ethnicity**
Non-Hispanic White	1666
Black	68
Hispanic	67
Asian	0
Other	39
Native American	0

**Age**
From 65 to 74	904
From 75 to 84	679
85 and over	236
Less than 65	63

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	61
Depression	19
Chronic Kidney Disease	34
Asthma	17
Osteoperosis	7
Atrial Fibrilation	34
Heart Failure	31
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Dementia	10
Cancer	12

ambulatory monitoring	25
blood draw	336
cardiac procedures	1311
doctor visit	996
hospital care	203
inpatient care	203
lab tests	536
minimally invasive procedures	28
nuclear scan	113
stress testing	544
ultrasound (sonogram)	874

**Gender**
Male	1074
Female	920

**Ethnicity**
Non-Hispanic White	1773
Black	56
Hispanic	59
Asian	56
Other	0
Native American	0

**Age**
From 65 to 74	893
From 75 to 84	781
85 and over	267
Less than 65	53

Hypertension	75
High Cholesterol	71
Stroke	9
Ischemic Heart Disease	64
Depression	21
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	8
Atrial Fibrilation	38
Heart Failure	32
Chronic Obstructive Pulmonary Disease	16
Diabetes	33
Dementia	12
Cancer	12

ambulatory monitoring	27
blood draw	358
cardiac procedures	1286
cardioversion	10
doctor visit	1092
hospital care	163
inpatient care	163
lab tests	237
minimally invasive procedures	24
nuclear scan	87
stress testing	506
ultrasound (sonogram)	869

**Gender**
Male	1063
Female	900

**Ethnicity**
Non-Hispanic White	1732
Black	68
Hispanic	58
Asian	51
Other	0
Native American	0

**Age**
From 65 to 74	918
From 75 to 84	767
85 and over	233
Less than 65	45

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	63
Depression	20
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	10
Atrial Fibrilation	36
Heart Failure	31
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	12
Cancer	12

ambulatory monitoring	24
blood draw	380
cardiac procedures	1386
doctor visit	1034
hospital care	149
inpatient care	149
lab tests	289
minimally invasive procedures	26
nuclear scan	114
stress testing	547
ultrasound (sonogram)	933

**Gender**
Male	1201
Female	1007

**Ethnicity**
Non-Hispanic White	1936
Black	76
Hispanic	67
Asian	63
Other	0
Native American	0

**Age**
From 65 to 74	994
From 75 to 84	869
85 and over	292
Less than 65	53

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	64
Depression	21
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	9
Atrial Fibrilation	36
Heart Failure	31
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	12
Cancer	12

ambulatory monitoring	11
blood draw	347
cardiac procedures	1006
doctor visit	865
hospital care	114
inpatient care	114
lab tests	291
minimally invasive procedures	13
nuclear scan	114
stress testing	411
ultrasound (sonogram)	643

**Gender**
Male	1174
Female	890

**Ethnicity**
Non-Hispanic White	1802
Black	70
Hispanic	74
Asian	0
Other	61
Native American	0

**Age**
From 65 to 74	858
From 75 to 84	864
85 and over	281
Less than 65	61

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	66
Depression	20
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	8
Atrial Fibrilation	42
Heart Failure	35
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	12
Cancer	12

ambulatory monitoring	12
blood draw	692
cardiac procedures	2255
cardioversion	12
doctor visit	2020
hospital care	373
inpatient care	373
lab tests	552
minimally invasive procedures	39
nuclear scan	314
stress testing	982
ultrasound (sonogram)	1402

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Marcus McKenzie, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marcus McKenzie, MD treated as a cardiologist in Plano, TX were cardiac procedures, ultrasound (sonogram), stress testing and lab tests.

ambulatory monitoring	30
blood draw	359
cardiac procedures	1433
cardioversion	10
doctor visit	1271
hospital care	191
inpatient care	191
lab tests	509
minimally invasive procedures	24
nuclear scan	176
stress testing	620
ultrasound (sonogram)	905

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Marcus McKenzie, MD.

**Gender**
Male	987
Female	849

**Ethnicity**
Black / African American	59
Asian / Pacific Islander	36
Non-Hispanic White	1627
Native American / Alaskan Native	0
Hispanic	61
Other	10

**Age**
75 to 84	683
85 and over	228
Less than 65	67
65 to 74	858

Average of Total of Conditions of Medicare patients treated by Dr. Marcus McKenzie, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Marcus McKenzie, MD treated were high cholesterol, hypertension, ischemic heart disease and atrial fibrilation.

Hypertension	60
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	49
Depression	16
Chronic Kidney Disease	28
Asthma	7
Osteoporosis	6
Heart Failure	25
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Atrial Fibrillation	29
Cancer	9
Dementia	8

Education & Training

Dr. Marcus McKenzie, MD graduated from University of Texas Medical Branch School of Medicine in 1998. He has a state license in Texas.

Medical School: University of Texas Medical Branch School of Medicine (1998)

Licensed In: Texas

Affiliations & Hospitals

Dr. Marcus McKenzie, MD is associated with these hospitals and organizations:

HealthTexas Provider Network

Baylor Scott & White Health

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General Payments

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

**Payments by Company**
Novartis Pharmaceuticals Corporation	$1,872 ENTRESTO $1,543	LEQVIO $307	NON BRAND $21
Astellas Pharma US Inc	$988 Lexiscan $988
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$676 LifeVest $676
AstraZeneca Pharmaceuticals LP	$571 BRILINTA $530	FARXIGA $13	CRESTOR $12	$17
Regeneron Healthcare Solutions, Inc.	$565 PRALUENT (alirocumab) Injection $248	PRALUENT ALIROCUMAB INJECTION $164	PRALUENT $153
Other	$4,206 XARELTO $425	Repatha $408	Vascepa $283	VERQUVO $224	ELIQUIS $186	Other $2,681

**Types of Payments**
Food and Beverage	$8,867
Education	$12

Research Payments

Dr. Marcus McKenzie, MD has received 580 research payments totaling $667,971.

Biography

Dr. Marcus McKenzie is a specialist in adult cardiology. He works in Plano, TX and Prosper, TX. His areas of expertise include pain, heart failure, and high cholesterol (hyperlipidemia). He is affiliated with HealthTexas Provider Network. Dr. McKenzie has an open panel in Plano, TX according to Doctor.com. He graduated from the University of Texas Medical Branch School of Medicine.