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Home > CA Providers > Cardiac Electrophysiologists

Dr. John R. Nelson, MD

(5 Ratings)

Specializes in: Cardiac Electrophysiology (Heart Rhythm) and Adult Cardiology

University of Louisville School of Medicine (1982)

Professional interests include: heart problems

7061 N Whitney Suite 101
Fresno, CA 93720

(559) 299-0224

Dr. John R. Nelson, MD is a cardiac electrophysiologist in Fresno, CA specializing in cardiac electrophysiology (heart rhythm) and adult cardiology. He graduated from University of Louisville School of Medicine in 1982 and has 44 years of experience. Dr. John R. Nelson, MD is affiliated with Saint Agnes Medical Center.

Office Locations

Saint Agnes Medical Center

7061 N Whitney Suite 101
Fresno, CA 93720

(559) 299-0224

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Some issues Dr. John R. Nelson, 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

“Dr. John R. Nelson, cardiologist at the California Cardiovascular Institute in Fresno, was elected to the board of directors of the National Lipid Association.”—"Board Room", Fresno Bee, June 2010

Noteworthy Medicare Patient Procedures Performed by Dr. John R. Nelson, MD in 2023

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

Top 5%

By Volume:

ankle brachial index

In 2023, Dr. John R. Nelson, MD performed more ankle brachial index (ABI) procedures for Medicare patients than 95% of providers in related specialties within California.

Top 25%

By Volume:

cardiac stress testing

cardiac procedures

By Affordability:

vascular studies

In 2012, among providers in related specialties within California, Dr. John R. Nelson, MD performed more cardiac (heart) stress testing, and cardiac procedures procedures for Medicare patients than 75% of them and he also had a list price for vascular studies that was lower than the list prices billed to Medicare by 75% of them. 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. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2012 were cardiac procedures, stress testing, ultrasound (sonogram) and vascular procedures.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	25
cardiac procedures	1069
doctor visit	2534
nuclear scan	283
stress testing	570
ultrasound (sonogram)	540
vascular procedures	293

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2013 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	35
cardiac procedures	707
doctor visit	2333
nuclear scan	147
stress testing	302
ultrasound (sonogram)	420
vascular procedures	207

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	278
Female	284

**Ethnicity**
Non-Hispanic White	440
Black	27
Hispanic	61
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	192
85 and over	81
Less than 65	31

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	75
Depression	11
Chronic Kidney Disease	39
Asthma	11
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	10
Diabetes	47
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2014 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

abdominal imaging	38
ambulatory monitoring	31
cardiac procedures	995
doctor visit	2721
nuclear scan	245
stress testing	503
ultrasound (sonogram)	556
vascular procedures	192

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	273
Female	299

**Ethnicity**
Non-Hispanic White	432
Black	27
Hispanic	79
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	289
From 75 to 84	185
85 and over	72
Less than 65	26

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	75
Depression	13
Chronic Kidney Disease	40
Asthma	12
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	12
Diabetes	46
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2015 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

abdominal imaging	13
ambulatory monitoring	29
cardiac procedures	906
doctor visit	2619
nuclear scan	228
sleep study	43
stress testing	465
ultrasound (sonogram)	469
vascular procedures	114

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	596
Female	576

**Ethnicity**
Non-Hispanic White	906
Black	58
Hispanic	128
Asian	50
Other	0
Native American	0

**Age**
From 65 to 74	604
From 75 to 84	408
85 and over	126
Less than 65	34

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	75
Depression	14
Chronic Kidney Disease	38
Asthma	14
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	11
Diabetes	47
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2016 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	25
cardiac procedures	721
doctor visit	2301
nuclear scan	185
stress testing	378
ultrasound (sonogram)	318
vascular procedures	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	287
Female	281

**Ethnicity**
Non-Hispanic White	444
Black	23
Hispanic	65
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	284
From 75 to 84	210
85 and over	52
Less than 65	22

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	75
Depression	13
Chronic Kidney Disease	42
Asthma	16
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	11
Diabetes	46
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	22
cardiac procedures	842
doctor visit	2590
nuclear scan	184
stress testing	366
ultrasound (sonogram)	454

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	267
Female	284

**Ethnicity**
Non-Hispanic White	431
Black	27
Hispanic	62
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	270
From 75 to 84	217
85 and over	49
Less than 65	15

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2017

Hypertension	75
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	40
Asthma	9
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	42
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2018 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	27
cardiac procedures	823
doctor visit	2387
nuclear scan	204
stress testing	411
ultrasound (sonogram)	398
vascular procedures	13

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	253
Female	286

**Ethnicity**
Non-Hispanic White	413
Black	26
Hispanic	67
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	266
From 75 to 84	214
85 and over	43
Less than 65	16

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	42
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	40
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2019 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	14
cardiac procedures	863
doctor visit	2179
nuclear scan	230
stress testing	463
ultrasound (sonogram)	386

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	249
Female	284

**Ethnicity**
Non-Hispanic White	410
Black	25
Hispanic	67
Asian	19
Other	0
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	215
85 and over	52
Less than 65	16

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	38
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2020 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	23
cardiac procedures	804
doctor visit	2448
nuclear scan	195
stress testing	394
ultrasound (sonogram)	387

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	231
Female	283

**Ethnicity**
Non-Hispanic White	399
Black	19
Hispanic	64
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	246
From 75 to 84	210
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	6
Diabetes	39
Dementia	4
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

cardiac procedures	608
doctor visit	2091
nuclear scan	135
stress testing	270
ultrasound (sonogram)	338

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	237
Female	281

**Ethnicity**
Non-Hispanic White	398
Black	16
Hispanic	65
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	211
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	75
Depression	14
Chronic Kidney Disease	45
Asthma	11
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	23
Chronic Obstructive Pulmonary Disease	6
Diabetes	40
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

ambulatory monitoring	15
cardiac procedures	592
doctor visit	1981
nuclear scan	128
stress testing	259
ultrasound (sonogram)	318
vascular procedures	122

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	239
Female	266

**Ethnicity**
Non-Hispanic White	393
Black	0
Hispanic	64
Asian	17
Other	18
Native American	0

**Age**
From 65 to 74	225
From 75 to 84	207
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John R. Nelson, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	75
Depression	14
Chronic Kidney Disease	42
Asthma	13
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	38
Dementia	3
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John R. Nelson, MD for Medicare patients.

The highest averages for the top procedures that Dr. John R. Nelson, MD treated as a cardiac electrophysiologist in Fresno, CA were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

abdominal imaging	25
ambulatory monitoring	24
cardiac procedures	811
doctor visit	2380
nuclear scan	196
sleep study	43
stress testing	398
ultrasound (sonogram)	416
vascular procedures	136

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John R. Nelson, MD.

**Gender**
Male	264
Female	284

**Ethnicity**
Black / African American	22
Asian / Pacific Islander	20
Non-Hispanic White	424
Native American / Alaskan Native	0
Hispanic	65
Other	1

**Age**
75 to 84	206
85 and over	43
Less than 65	14
65 to 74	266

Average of Total of Conditions of Medicare patients treated by Dr. John R. Nelson, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John R. Nelson, MD treated were hypertension, ischemic heart disease, high cholesterol and diabetes.

Hypertension	68
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	68
Depression	12
Chronic Kidney Disease	37
Asthma	10
Osteoporosis	7
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	38
Atrial Fibrillation	11
Dementia	5
Cancer	9

Education & Training

Dr. John R. Nelson, MD graduated from University of Louisville School of Medicine in 1982. He completed residency at Valley Medical Center of Fresno. He is certified by the Internal Medicine, Internal Medicine, American Board and has a state license in California.

Medical School: University of Louisville School of Medicine (1982)

Residency: Valley Medical Center of Fresno (1985)

Board Certification: Internal Medicine, Internal Medicine, American Board (1987)

Licensed In: California

Affiliations & Hospitals

Dr. John R. Nelson, MD is associated with these hospitals and organizations:

Saint Agnes Medical Center

Ratings & Reviews

Dr. John R. Nelson, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. John R. Nelson, MD from all over the web to help you find the right in Fresno, CA.

Overall Rating

(5 Ratings)

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General Payments

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

**Payments by Company**
Amarin Pharma Inc.	$581,000 Vascepa $581,000
Amgen Inc.	$186,702 Repatha $186,469	Corlanor $104	$130
Kowa Pharmaceuticals America, Inc.	$83,026 LIVALO $76,175	BYSTOLIC $711	Vascepa $345	LIPOFEN $58	$5,738
Boehringer Ingelheim Pharmaceuticals, Inc.	$48,974 JARDIANCE $48,907	GLYXAMBI $67
Regeneron Pharmaceuticals, Inc.	$44,401 PRALUENT (alirocumab) Injection $44,401
Other	$119,554 JARDIANCE $32,294	PRALUENT $17,796	NEXLETOL $17,288	CRESTOR $10,514	PRALUENT ALIROCUMAB INJECTION $8,749	Other $32,912

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$757,060
Travel and Lodging	$174,827
Consulting Fee	$58,396
Food and Beverage	$33,130
Honoraria	$31,696
Other	$8,548

Research Payments

Dr. John R. Nelson, MD has received 1 research payments totaling $2,874.

Biography

Dr. John Nelson, who practices in Fresno, CA, is a medical specialist in adult cardiology and cardiac electrophysiology (heart rhythm). Patients gave Dr. Nelson an average rating of 5.0 stars (out of 5). In his practice, Dr. Nelson focuses on heart problems and internal medicine. He is affiliated with Saint Agnes Medical Center. He obtained his medical school training at the University of Louisville School of Medicine and performed his residency at Valley Medical Center of Fresno.