Dr. James Ong, MD

Dr. James Ong, MD

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Clinical Cardiac Electrophysiology  ·  
Male
(172)

Accepting new patients

Dr. James Ong, MD is a clinical cardiac electrophysiologist in Tarzana, CA and has been practicing for 22 years. He specializes in clinical cardiac electrophysiology and cardiology.Read his story

Heart Rhythm Specialists of Southern California

18372 Clark St Ste 218

Tarzana, CA 91356
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • Motion Picture Industry Health Plan
  • Providence Health Plans
  • UnitedHealthCare

Learn about Dr. Ong

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Ong performs your care needs compared to other doctors.

Atrial Flutter
very high
more than 99% of peers
Cardiac Electrophysiology
very high
more than 98% of peers
Cardioversion, Elective
very high
more than 97% of peers

Dr. Ong's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Dr. Ong's bio

This content was provided by Dr. Ong "A board-certified Cardiac Electrophysiologist, Dr. James Ong has been performing complex arrhythmia ablation since 1993. He is currently certified by ABIM in Internal Medicine, Cardiovascular Diseases, and Clinical Cardiac Electrophysiology Dr. Ong was born in Taiwan, but grew up in California where he received all his education and medical training. After graduating from the University of California, Berkeley, with a degree in Biochemistry, he went on to complete his M.D. Degree at UC San Diego in 1989. Dr. Ong trained in Cardiology and Cardiac Electrophysiology at Cedars-Sinai Medical Center, under the auspices of renowned physicians like Jeremy Swan, William Ganz, James Forrester, C. Thomas Peter, and Peng-Sheng Chen. He is the recipient of Merck, NIH, and AHA awards. He received the FHRS designation in 2008. He is the author of several scientific manuscripts in Cardiac Electrophysiology, and in particular, on the topic of atrial fibrillation. Notable articles had been published in Circulation, Journal of Clinical Investigation, American Journal of Cardiology, and Journal of Cardiovascular Electrophysiology."
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Care Philosophy

This content was provided by Dr. Ong "Education, education, education - Patients' understanding of their conditions is the most critical first step in their healing process. We emphasize patient teaching in every aspect of our encounters with our patients."

2  Specialties

  • Clinical Cardiac Electrophysiology
  • Cardiology

4  Board Certifications

  • Cardiology
    Accredited by: American Board of Medical Specialties*
  • Cardiovascular Disease
    Accredited by: American Board of Internal Medicine*
  • Clinical Cardiac Electrophysiology
    Accredited by: American Board of Medical Specialties*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

57  Conditions Treated

  • Aneurysm
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Ectasia
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Arrhythmogenic Right Ventricular Dysplasia, Familial, 1
  • Atrial Fibrillation
  • Atrial Flutter
  • Autonomic Disorders
  • Benign Tumor
  • Brugada Syndrome
  • Cardiomegaly
  • Cardiomyopathy
  • Carotid Artery Disease
  • Chest Pain
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Ebstein's Anomaly
  • Endocarditis
  • Heart Attack (Acute Myocardial Infarction)
  • Heart Block
  • Heart Disease
  • Heart Palpitations
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypertensive Heart and Chronic Kidney Disease
  • Hypertensive Heart Disease
  • Hypotension
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Long QT Syndrome
  • Marfan Syndrome
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Paroxysmal Atrial Tachycardia
  • Paroxysmal Supraventricular Tachycardia
  • Pericardial Disease
  • Pulmonary Disease
  • Pulmonary Edema
  • Pulmonary Hypertension
  • Pulmonary Valve Disease
  • Septal Defect
  • Sudden Arrhythmia Death Syndrome
  • Supraventricular Tachycardia
  • Syncope
  • Thrombosis
  • Tricuspid Valve Disease
  • Vascular Disease
  • Ventricular Fibrillation
  • Wolff-Parkinson-White Pattern
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28  Procedures

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • U.C. Berkeley
    Undergraduate School | Graduated 1984
  • University Of California, San Diego, School Of Medicine
    Medical School | Graduated 1989
  • UCLA/West La Va Medical Center
    Internship Hospital | Completed 1990
  • UCLA/West La Vamc
    Residency Hospital | Completed 1992
  • Cedars-Sinai Cardiac Electrophysiology Fellowship
    Fellowship Hospital | Completed 1996
  • Cedars-Sinai Medical Center Cardiology Fellowship
    Fellowship Hospital | Completed 1995

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
  • Solomon Scholar, 1992
  • National Institute of Health Research Grant, 1996
  • Merck Fellowship, 1995
Media & Publications
  • Relation between ligament of Marshall and adrenergic atrial tachyarrhythmia. Circulation. 1999 Aug 24;100(8):876-83., 1999
  • Arrhythmias Following Cardioverter-Defibrillator Implantation: Comparison of Epicardial and Transvenous Systems. American Journal of Cardiology 1995;75:137-40., 1995
  • Prevalence of Retrograde Accessory Pathway Conduction During Atrial Fibrillation. Journal of Cardiovascular Electrophysiology 1997;8(4);377-387., 1997
  • Pulmonary veins and ligament of Marshall as sources of rapid activations in a canine model of sustained atrial fibrillation. Circulation. 2001 Feb 27;103(8):1157-63., 2001
  • Focal source hypothesis of atrial fibrillation. J Electrocardiol. 1998;31 Suppl:32-4., 1998
  • The Relation Between Atrial Fibrillation Wavefront Characteristics and Accessory Pathway Conduction. Journal of Clinical Investigation 1995;96:2284-96., 1995
  • End Afib,
  • Website, 2004
  • Atrial fibrillation ablation, 2009

Languages Spoken

  • English
  • French
  • Mandarin
  • Spanish
  • Taiwanese

Memberships & Professional Affiliations

Dr. Ong does not have any memberships or affiliations listed. If you are Dr. Ong and would like to add memberships or affiliations, please update your profile.

Dr. Ong's Reviews

4.9
Likelihood of recommending Dr. Ong to family and friends
172 total reviews (14 have comments)

Likelihood to Recommend (172)

  • 5
    (168)
  • 4
    (2)
  • 3
    (0)
  • 2
    (0)
  • 1
    (2)

Dr. Ong's Performance

  • Trustworthiness

    EXCELLENT
  • Explains condition(s) well

    EXCELLENT
  • Answers questions

    EXCELLENT
  • Time well spent

    EXCELLENT

Office & Staff Performance

  • Scheduling

    EXCELLENT
  • Office environment

    EXCELLENT
  • Staff friendliness

    EXCELLENT
  • Average wait time

    10 to 15 minutes

Patient Comments (14)

GREAT DOCTOR! HAVE COMPLETE CONFIDENCE IN HIS DECISIONS
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DR. ONG IS A MIRACLE WORKER. HIS LEVEL OF EXPERTISE IS AWESOME. HE IS WONDERFULLY CARING,DEDICATED , AND TALENTED. I OWE MY IMPROVED HEALTH AND VITALITY TO DR. ONG. HE SAVED MY LIFE! THANK YOU AGAIN DR. ONG.
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he is the best ! did my oblation and am all good thanks to him!
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DR. ONG HAS BEEN MY DOCTOR FOR MANY YEARS. HE PROVIDES EXCELLENT CARE AND HIGH QUALITY SERVICE AT EVERY VISIT. THE SAME GOES FOR HIS STAFF!
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He cured me of my permanent afib. His years of expertise in the field made me decide to finally have an ablation even though I am asymptomatic. Been afib free for almost 3 weeks after my ablation and that is a feat by itself for someone who has permanent afib for the past 6 years. I can't thank him...more
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