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Dr. Ranjini R. Roy, MD

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Specializes in: Nuclear Cardiology and Adult Cardiology

Rosalind Franklin University of Medicine and Science, Chicago Medical School

Professional interests include: anticoagulants (blood thinners), angina, atrial fibrillation, and more.

8088 W. Whitney Drive
Peoria, AZ 85345

(833) 855-9973

Dr. Ranjini R. Roy, MD is a nuclear medicine specialist in Phoenix, AZ specializing in nuclear cardiology and adult cardiology. She graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. Dr. Ranjini R. Roy, MD is affiliated with District Medical Group.

Office Locations

2525 E. Roosevelt Street
Phoenix, AZ 85008

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District Medical Group

8088 W. Whitney Drive
Peoria, AZ 85345

(833) 855-9973

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811 S. Hamilton Street
Chandler, AZ 85225

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950 E. Main Street
Mesa, AZ 85203

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950 E. Van Buren Street
Avondale, AZ 85323

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Some issues Dr. Ranjini R. Roy, 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 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.

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. Ranjini R. Roy, MD in 2023

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

Top 10%

By Affordability:

cardiac imaging

echocardiogram

In 2023, Dr. Ranjini R. Roy, MD had a list price for cardiac imaging, and echocardiogram (echo) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Arizona. 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:

color Doppler echocardiography

Doppler echocardiography

spectral Doppler echocardiography

transthoracic echocardiography

In 2012, Dr. Ranjini R. Roy, MD had a list price for color Doppler echocardiography, Doppler echocardiography, spectral Doppler echocardiography, and transthoracic echocardiography (TTE) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Arizona. 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

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

doctor visit	82

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2014 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	237
doctor visit	109
hospital care	89
inpatient care	89
nuclear scan	16
stress testing	41
ultrasound (sonogram)	196

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	369
Female	292

**Ethnicity**
Non-Hispanic White	306
Black	114
Hispanic	185
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	187
From 75 to 84	89
85 and over	28
Less than 65	357

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2014

Hypertension	74
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	44
Depression	32
Chronic Kidney Disease	37
Asthma	14
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	31
Chronic Obstructive Pulmonary Disease	22
Diabetes	43
Dementia	11
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2015 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	191
doctor visit	88
hospital care	79
inpatient care	79
stress testing	27
ultrasound (sonogram)	164

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	664
Female	476

**Ethnicity**
Non-Hispanic White	488
Black	190
Hispanic	372
Asian	0
Other	0
Native American	44

**Age**
From 65 to 74	364
From 75 to 84	164
85 and over	48
Less than 65	564

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2015

Hypertension	75
High Cholesterol	55
Stroke	10
Ischemic Heart Disease	46
Depression	30
Chronic Kidney Disease	41
Asthma	22
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	35
Chronic Obstructive Pulmonary Disease	22
Diabetes	44
Dementia	13
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2016 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	248
doctor visit	93
hospital care	60
inpatient care	60
stress testing	33
ultrasound (sonogram)	215

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	410
Female	330

**Ethnicity**
Non-Hispanic White	341
Black	111
Hispanic	222
Asian	27
Other	13
Native American	26

**Age**
From 65 to 74	283
From 75 to 84	110
85 and over	35
Less than 65	312

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2016

Hypertension	75
High Cholesterol	58
Stroke	7
Ischemic Heart Disease	45
Depression	34
Chronic Kidney Disease	45
Asthma	31
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	43
Dementia	19
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2017 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	257
doctor visit	82
hospital care	62
inpatient care	62
stress testing	40
ultrasound (sonogram)	217

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	412
Female	356

**Ethnicity**
Non-Hispanic White	355
Black	143
Hispanic	208
Asian	0
Other	0
Native American	31

**Age**
From 65 to 74	279
From 75 to 84	117
85 and over	43
Less than 65	329

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	7
Ischemic Heart Disease	45
Depression	34
Chronic Kidney Disease	48
Asthma	13
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	42
Dementia	21
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2018 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	214
doctor visit	65
hospital care	53
inpatient care	53
stress testing	27
ultrasound (sonogram)	187

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	388
Female	272

**Ethnicity**
Non-Hispanic White	308
Black	108
Hispanic	188
Asian	14
Other	12
Native American	30

**Age**
From 65 to 74	235
From 75 to 84	108
85 and over	41
Less than 65	276

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2018

Hypertension	75
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	45
Depression	35
Chronic Kidney Disease	52
Asthma	12
Osteoperosis	4
Atrial Fibrilation	12
Heart Failure	35
Chronic Obstructive Pulmonary Disease	26
Diabetes	43
Dementia	20
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2019 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	157
doctor visit	67
hospital care	56
inpatient care	56
stress testing	18
ultrasound (sonogram)	139

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	326
Female	291

**Ethnicity**
Non-Hispanic White	292
Black	110
Hispanic	158
Asian	23
Other	16
Native American	18

**Age**
From 65 to 74	247
From 75 to 84	99
85 and over	34
Less than 65	237

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2019

Hypertension	75
High Cholesterol	54
Stroke	10
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	53
Asthma	12
Osteoperosis	5
Atrial Fibrilation	14
Heart Failure	35
Chronic Obstructive Pulmonary Disease	24
Diabetes	45
Dementia	18
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2020 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	102
doctor visit	18
hospital care	40
inpatient care	40
ultrasound (sonogram)	102

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	242
Female	159

**Ethnicity**
Non-Hispanic White	195
Black	72
Hispanic	94
Asian	0
Other	0
Native American	21

**Age**
From 65 to 74	147
From 75 to 84	65
85 and over	28
Less than 65	161

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2020

Hypertension	75
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	53
Depression	33
Chronic Kidney Disease	60
Asthma	14
Osteoperosis	5
Atrial Fibrilation	18
Heart Failure	43
Chronic Obstructive Pulmonary Disease	22
Diabetes	50
Dementia	21
Cancer	5

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2021 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	94
doctor visit	18
hospital care	43
inpatient care	43
ultrasound (sonogram)	94

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	247
Female	190

**Ethnicity**
Non-Hispanic White	210
Black	70
Hispanic	120
Asian	0
Other	0
Native American	20

**Age**
From 65 to 74	194
From 75 to 84	76
85 and over	31
Less than 65	136

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2021

Hypertension	75
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	54
Depression	36
Chronic Kidney Disease	60
Asthma	19
Osteoperosis	4
Atrial Fibrilation	14
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	52
Dementia	24
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2022 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	85
doctor visit	43
hospital care	40
inpatient care	40
ultrasound (sonogram)	85

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	262
Female	198

**Ethnicity**
Non-Hispanic White	243
Black	68
Hispanic	106
Asian	0
Other	0
Native American	21

**Age**
From 65 to 74	192
From 75 to 84	104
85 and over	26
Less than 65	138

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2022

Hypertension	75
High Cholesterol	65
Stroke	18
Ischemic Heart Disease	37
Depression	34
Chronic Kidney Disease	30
Asthma	16
Osteoperosis	8
Atrial Fibrilation	20
Heart Failure	27
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ during 2023 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

cardiac procedures	96
doctor visit	27
hospital care	14
inpatient care	14
ultrasound (sonogram)	96

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	238
Female	190

**Ethnicity**
Non-Hispanic White	242
Black	66
Hispanic	85
Asian	0
Other	0
Native American	15

**Age**
From 65 to 74	185
From 75 to 84	89
85 and over	31
Less than 65	123

Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD in 2023

Hypertension	75
High Cholesterol	61
Stroke	13
Ischemic Heart Disease	33
Depression	38
Chronic Kidney Disease	29
Asthma	15
Osteoperosis	7
Atrial Fibrilation	24
Heart Failure	32
Chronic Obstructive Pulmonary Disease	29
Diabetes	43
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Ranjini R. Roy, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ranjini R. Roy, MD treated as a nuclear medicine specialist in Phoenix, AZ were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

cardiac procedures	168
doctor visit	62
hospital care	53
inpatient care	53
nuclear scan	16
stress testing	31
ultrasound (sonogram)	149

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Ranjini R. Roy, MD.

**Gender**
Male	323
Female	250

**Ethnicity**
Black / African American	95
Asian / Pacific Islander	8
Non-Hispanic White	270
Hispanic	158
Native American / Alaskan Native	20
Other	3

**Age**
75 to 84	92
85 and over	31
Less than 65	239
65 to 74	210

Average of Total of Conditions of Medicare patients treated by Dr. Ranjini R. Roy, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Ranjini R. Roy, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	68
High Cholesterol	52
Stroke	8
Ischemic Heart Disease	40
Depression	31
Chronic Kidney Disease	41
Asthma	15
Osteoporosis	4
Heart Failure	31
Chronic Obstructive Pulmonary Disease	22
Diabetes	40
Atrial Fibrillation	13
Cancer	6
Dementia	16

Education & Training

Dr. Ranjini R. Roy, MD graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. She completed residency at Mayo Clinic. She is certified by the Cardiovascular Disease and Internal Medicine, American Board of Internal Medicine Certification Board of Nuclear Cardiology National Board of Echocardiography and has a state license in Arizona.

Medical School: Rosalind Franklin University of Medicine and Science, Chicago Medical School

Residency: Mayo Clinic

Board Certification: Cardiovascular Disease and Internal Medicine, American Board of Internal Medicine Certification Board of Nuclear Cardiology National Board of Echocardiography

Licensed In: Arizona

Affiliations & Hospitals

Dr. Ranjini R. Roy, MD is associated with these hospitals and organizations:

District Medical Group

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General Payments

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

**Payments by Company**
Amgen Inc.	$123 Repatha $123
Janssen Pharmaceuticals, Inc	$113 XARELTO $113
Lantheus Medical Imaging, Inc.	$100 Definity $100
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$100 LifeVest $100
Pfizer Inc.	$67 ELIQUIS $56	PREVNAR - 13 $11
Other	$360 Adempas $57	BRILINTA $44	Mitra Clip system $26	XIFAXAN $25	ENTRESTO $24	Other $185

**Types of Payments**
Food and Beverage	$860
Education	$3

Biography

Dr. Ranjini Roy practices adult cardiology and nuclear cardiology in Phoenix, AZ, Peoria, AZ, and Mesa, AZ. Her areas of expertise include the following: rheumatic heart disease, heart valve disease, and angina. After attending Rosalind Franklin University of Medicine and Science, Chicago Medical School, Dr. Roy completed her residency training at Mayo Clinic. Dr. Roy (or staff) speaks the following foreign languages: Spanish and Bengali. Dr. Roy is professionally affiliated with District Medical Group.