Photo of Warren D. Johnston, MD

Warren D. Johnston, MD

Cardiology
Accepting New Patients
Offers Video Visits
St. Joseph Heritage Orange - Cardiology
1140 West La Veta Avenue
Orange, CA 92868
1962.1 miles away
(714) 543-5555
Medical Groups & Affiliations
St. Joseph Heritage Medical Group
This provider is part of the larger Providence network and you may be able to access providers, hospitals, and services with the following groups:
  • Mission Heritage Medical Group and Affiliated Physicians
  • St. Joseph Heritage Medical Group and Affiliated Physicians
  • St. Jude Heritage Medical Group and Affiliated Physicians
Speaks: English
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St. Joseph Heritage Orange - Cardiology

1140 West La Veta Avenue, Orange, CA 92868

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Insurances Accepted

This information provides an overview of accepted insurance plan types. Coverage may vary by specific plan. Please verify your with your insurance provider before visiting us for care.

About Warren D. Johnston

Dr. Johnston's primary focus is prevention and treatment of cardiovascular disease, lipid disorders and women's heart disease. He was designated as a 2010 Physician of Excellence by Orange County Medical Association and Orange Coast Magazine, and was the 2008 recipient of the "Spirit of St. Joseph" award at St. Joseph Hospital. A part of the Department of Cardiology at St. Joseph Hospital for 21 years, he is currently the co-director of the Women's Heart Center. He has served as faculty at UCI, and is currently the Chairman of the Department of Cardiology at SJHMG. Dr. Johnston is accepting new general cardiology patients.

Medical School

University of Rochester School of Medicine
1975

Residency

USC LA County Medical Center- CA
1978

Fellowship

UC Irvine Medical Center
1980

Board Certifications
  • American Board of Internal Medicine, Cardiovascular Disease
  • American Board of Internal Medicine, Internal Medicine
St. Joseph Heritage Orange - Cardiology
1140 West La Veta Avenue
Orange, CA 92868
Medical Groups & Affiliations
St. Joseph Heritage Medical Group
Affiliated Locations
Providence St. Joseph Hospital - Orange

Conditions and Procedures

  • Abnormal Coronary Angiography
  • Abnormal Stress Test
  • Acute Bacterial Endocarditis
  • Acute Decompensated Heart Failure
  • Adenosine Stress Test
  • Aneurysm Of Leg Artery
  • Anticoagulation
  • Aortic Diseases
  • Aortic Valve Disease
  • Arrhythmia
  • Atherosclerosis
  • Athletic Heart Syndrome
  • Atrial Fibrillation
  • Atrial Flutter
  • Atrial Septal Defect (Asd)
  • Atrial Tachycardia
  • Atrioventricular Block
  • Atrioventricular Septal Defect
  • Autoimmune Pericarditis
  • Bicuspid Aortic Valve
  • Bradycardia
  • Cardiac Angina
  • Cardiac Insufficiency
  • Cardiac Rehabilitation
  • Cardiac Risk Assessment
  • Cardiac Tumor
  • Cardiomegaly
  • Cardiomyopathy
  • Cardiorenal Syndrome
  • Chest Pain
  • Cholesterol Disorders
  • Cholesterol Management
  • Claudication
  • Congestive Heart Failure (Chf)
  • Coronary Artery Calcification
  • Coronary Artery Disease
  • Dobutamine Stress Test
  • Echocardiogram
  • Eisenmenger Syndrome
  • Exercise Intolerance
  • Familial Arrhythmias
  • Familial Dilated Cardiomyopathy
  • Familial Hypertrophic Cardiomyopathy
  • Family History Of Sudden Cardiac Death
  • Giant Cell Myocarditis
  • Heart Failure Screening
  • Heart Murmur
  • Heart Racing
  • Heart Valve Disease
  • Holter Monitor
  • Hypertrophic Cardiomyopathy
  • Idiopathic Hypertrophic Subaortic Stenosis
  • In Office Cardiac Stress Test
  • Infiltrative Disorders Of The Heart
  • Inflammatory Heart Diseases
  • Ischemic Cardiomyopathy
  • Left Bundle Branch Block
  • Left Heart Failure
  • Left Ventricular Dysfunction
  • Mitral Regurgitation
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Myocardial Infarction (Mi)
  • Myocarditis
  • Orthopnea
  • Palpitations
  • Patent Ductus Arteriosus
  • Patent Foramen Ovale
  • Patent Foramen Ovale Closure
  • Pericardial Effusion
  • Pericarditis
  • Pre Excitation Syndrome
  • Premature Ventricular Contractions
  • Prinzmetals Angina
  • Pulmonary Artery Stenosis
  • Pulmonary Edema
  • Pulmonary Valve Disorders
  • Pulmonary Valve Insufficiency
  • Pulmonary Valve Stenosis
  • Refractory Angina
  • Rheumatic Aortic Regurgitation
  • Rheumatic Aortic Stenosis
  • Rheumatic Diseases Of Pulmonary Valve
  • Rheumatic Heart Disease
  • Rheumatic Heart Failure
  • Rheumatic Mitral Regurgitation
  • Rheumatic Mitral Stenosis
  • Right Bundle Branch Block
  • Secondary Hypertension
  • Sick Sinus Syndrome
  • Sports Related Cardiovascular Assessment
  • Stress Echo Cardiogram
  • Subaortic Stenosis
  • Supraventricular Tachycardia
  • Syncope
  • Tachycardia Bradycardia Syndrome
  • Thallium Stress Test
  • Transesophageal Echocardiography
  • Transthoracic Echocardiogram
  • Tricuspid Regurgitation
  • Tricuspid Valve Disease
  • Valve Stenosis
  • Valvular Endocarditis
  • Valvular Heart Disease
  • Vasovagal Syncope
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