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Dr. Warren David Johnston, MD

Accepting New Patients

(Warren D. Johnston, MD)

(356 Ratings)

Specializes in: Cardiology (Heart Disease)

University of Rochester School of Medicine (1975)

Professional interests include: preventive cardiology, women's health issues, heart problems

1140 West La Veta Avenue
Orange, CA 92868

(714) 543-5555

Dr. Warren David Johnston, MD is a cardiologist in Orange, CA specializing in cardiology (heart disease). He graduated from University of Rochester School of Medicine in 1975 and has 50 years of experience. Dr. Warren David Johnston, MD is affiliated with St. Joseph Heritage Medical Group, Providence Medical Foundation and St. Joseph Heritage Orange - Cardiology.

Office Locations

Address:

1140 West La Veta Avenue
Orange, CA 92868

Address:

1140 West La Veta Avenue Suite 430
Orange, CA 92868

Some issues Dr. Warren David Johnston, 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 (see more mentions in the news)

“Dr. Warren D. Johnston has been named president of the American Heart Association, Orange County division.”—"Status Update: Concordia president to retire; jobs fair and veterans networking mixer on tap", The Orange County Register, October 2017

“St. Joseph Hospital cardiologists Dr. Warren Johnston (he is the association's board president) and Dr. Larry Santora and their wives opted for the two trips to Dubai, while longtime supporter Sam...”—"Event carries torch for Special Olympics", The Orange County Register, May 2007

“Women often have different symptoms than the crushing chest pain associated with heart attacks, says Dr. Warren Johnston, a member of Cardiology Specialists of Orange County, president of the...”—"Heart woes for women can be painless and lethal", The Orange County Register, February 2007

cardiac procedures	409
doctor visit	1100
hospital care	149
inpatient care	149
stress testing	108
ultrasound (sonogram)	398

**Gender**
Male	427
Female	445

**Ethnicity**
Non-Hispanic White	647
Black	15
Hispanic	130
Asian	64
Other	16
Native American	0

**Age**
From 65 to 74	342
From 75 to 84	280
85 and over	175
Less than 65	75

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	51
Depression	14
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	10
Atrial Fibrilation	27
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	35
Dementia	12
Cancer	15

blood draw	24
cardiac procedures	433
doctor visit	1126
hospital care	133
inpatient care	133
stress testing	108
ultrasound (sonogram)	400

**Gender**
Male	431
Female	500

**Ethnicity**
Non-Hispanic White	725
Black	0
Hispanic	129
Asian	52
Other	0
Native American	0

**Age**
From 65 to 74	347
From 75 to 84	321
85 and over	184
Less than 65	79

Hypertension	75
High Cholesterol	72
Stroke	11
Ischemic Heart Disease	56
Depression	20
Chronic Kidney Disease	42
Asthma	10
Osteoperosis	11
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	16
Diabetes	38
Dementia	13
Cancer	15

**Gender**
Male	680
Female	834

**Ethnicity**
Non-Hispanic White	1154
Black	22
Hispanic	194
Asian	110
Other	34
Native American	0

**Age**
From 65 to 74	578
From 75 to 84	518
85 and over	314
Less than 65	104

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	54
Depression	20
Chronic Kidney Disease	42
Asthma	15
Osteoperosis	12
Atrial Fibrilation	26
Heart Failure	29
Chronic Obstructive Pulmonary Disease	20
Diabetes	35
Dementia	12
Cancer	16

blood draw	14
cardiac procedures	342
doctor visit	946
hospital care	63
inpatient care	63
stress testing	61
ultrasound (sonogram)	345

**Gender**
Male	350
Female	412

**Ethnicity**
Non-Hispanic White	587
Black	11
Hispanic	96
Asian	48
Other	20
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	272
85 and over	154
Less than 65	63

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	59
Depression	19
Chronic Kidney Disease	46
Asthma	21
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	30
Chronic Obstructive Pulmonary Disease	20
Diabetes	36
Dementia	13
Cancer	16

blood draw	10
cardiac procedures	313
doctor visit	1004
hospital care	57
inpatient care	57
stress testing	66
ultrasound (sonogram)	316

**Gender**
Male	437
Female	415

**Ethnicity**
Non-Hispanic White	645
Black	14
Hispanic	104
Asian	69
Other	20
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	302
85 and over	170
Less than 65	70

Hypertension	75
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	12
Cancer	14

cardiac procedures	382
doctor visit	944
hospital care	31
inpatient care	31
stress testing	85
ultrasound (sonogram)	372

**Gender**
Male	389
Female	410

**Ethnicity**
Non-Hispanic White	594
Black	16
Hispanic	112
Asian	57
Other	20
Native American	0

**Age**
From 65 to 74	281
From 75 to 84	294
85 and over	164
Less than 65	60

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	60
Depression	20
Chronic Kidney Disease	48
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	32
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	14
Cancer	16

blood draw	16
cardiac procedures	319
doctor visit	891
hospital care	29
inpatient care	29
stress testing	80
ultrasound (sonogram)	307

**Gender**
Male	345
Female	389

**Ethnicity**
Non-Hispanic White	544
Black	14
Hispanic	106
Asian	52
Other	18
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	241
85 and over	162
Less than 65	53

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	12
Atrial Fibrilation	20
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	15
Cancer	14

cardiac procedures	220
doctor visit	695
hospital care	17
inpatient care	17
stress testing	37
ultrasound (sonogram)	223

**Gender**
Male	272
Female	296

**Ethnicity**
Non-Hispanic White	431
Black	12
Hispanic	79
Asian	27
Other	19
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	207
85 and over	120
Less than 65	43

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	62
Depression	22
Chronic Kidney Disease	49
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	33
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	13
Cancer	14

blood draw	13
cardiac procedures	367
doctor visit	1250
hospital care	17
inpatient care	17
stress testing	49
ultrasound (sonogram)	370

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Warren David Johnston, MD for Medicare patients.

The highest averages for the top procedures that Dr. Warren David Johnston, MD treated as a cardiologist in Orange, CA were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

ambulatory monitoring	14
blood draw	15
cardiac procedures	352
doctor visit	994
hospital care	61
inpatient care	61
stress testing	74
ultrasound (sonogram)	342

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Warren David Johnston, MD.

**Gender**
Female	370
Male	333

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	47
Non-Hispanic White	532
Native American / Alaskan Native	0
Hispanic	95
Other	14

**Age**
85 and over	144
75 to 84	243
Less than 65	54
65 to 74	260

Average of Total of Conditions of Medicare patients treated by Dr. Warren David Johnston, MD From 2013 - 2021

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

Hypertension	60
High Cholesterol	59
Stroke	8
Ischemic Heart Disease	45
Depression	15
Chronic Kidney Disease	36
Asthma	9
Osteoporosis	8
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Atrial Fibrillation	19
Cancer	12
Dementia	10

Education & Training

Dr. Warren David Johnston, MD graduated from University of Rochester School of Medicine in 1975. He completed residency at USC LA County Medical Center- CA. He is certified by the Board Certification: Cardiology and has a state license in California.

Medical School: University of Rochester School of Medicine (1975)

Residency: USC LA County Medical Center- CA (1978)

Board Certification: Board Certification: Cardiology

Licensed In: California

Affiliations & Hospitals

Dr. Warren David Johnston, MD is associated with these hospitals and organizations:

St. Joseph Heritage Medical Group

Providence Medical Foundation

St. Joseph Heritage Orange - Cardiology

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Warren David Johnston, MD appears to accept the following insurance providers: Aetna PPO, Aetna HMO, Cigna PPO, Cigna HMO, Blue Shield of CA HMO, Multiplan PPO, Aetna Medicare Advantage HMO, HealthSmart (Interplan) PPO, United Healthcare Medicare Advantage, Health Net - TriCare, Anthem Blue Cross HMO, Choice /Humana PPO, Anthem Blue Cross PPO, Health Net PPO, Health Net HMO, Anthem Blue Cross Medicare PPO, Coventry/First Health PPO, United HealthCare PPO, United Healthcare HMO, US Family Health Plan - TriCare, Aetna Medicare Advantage PPO and Insurance Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Warren David Johnston, MD accepts the following insurance providers:

Aetna PPO

Aetna HMO

Cigna PPO

Cigna HMO

Blue Shield of CA HMO

Multiplan PPO

Aetna Medicare Advantage HMO

HealthSmart (Interplan) PPO

United Healthcare Medicare Advantage

Health Net - TriCare

Anthem Blue Cross HMO

Choice /Humana PPO

Anthem Blue Cross PPO

Health Net PPO

Health Net HMO

Anthem Blue Cross Medicare PPO

Coventry/First Health PPO

United HealthCare PPO

United Healthcare HMO

US Family Health Plan - TriCare

Aetna Medicare Advantage PPO

Insurance Plan

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Ratings & Reviews

Dr. Warren David Johnston, MD has an exceptional overall rating with an average of 4.8 out of 5 stars based on 356 ratings. We collect ratings and reviews of Dr. Warren David Johnston, MD from all over the web to help you find the right in Orange, CA.

4.8

Overall Rating

(356 Ratings)

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General Payments

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

**Payments by Company**
Abbott Laboratories	$1,117 THORATEC HEARTMATE 3 LVAS IMPLANT KIT $425	CardioMEMS HF System $185	HeartMate 3 Left Ventricular Assist Device $133	Mitra Clip system $131	2ND GEN CENTRIMAG PRIMARY CONSOLE $125	Other $119
Medtronic Vascular, Inc.	$733 Micra $361	Advisa $190	Resolute $150	Reveal LINQ $16	Amplia MRI $15
SANOFI-AVENTIS U.S. LLC	$733 PRALUENT $448	MULTAQ $286
Amgen Inc.	$733 Repatha $525	Corlanor $131	$77
E.R. Squibb & Sons, L.L.C.	$643 ELIQUIS $606	CAMZYOS $37
Other	$4,294 XARELTO $474	BRILINTA $302	ELIQUIS $301	Pradaxa $278	ENTRESTO $213	Other $2,727

**Types of Payments**
Food and Beverage	$8,074
Education	$180

Biography

Dr. Warren Johnston works as a cardiology (heart disease). His average patient rating is 5.0 stars (out of 5). In his practice, Dr. Johnston focuses on heart problems, women's health issues, and preventive cardiology. He is affiliated with St. Joseph Heritage Medical Group. Dr. Johnston accepts several insurance carriers, including Anthem, Blue California, and HealthSmart. He has an open panel in Orange, CA according to Providence Medical Foundation. Before performing his residency at Los Angeles County+USC Medical Center, Dr. Johnston attended the University of Rochester School of Medicine and Dentistry for medical school.