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    Last Updated: 02/22/2026

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    MediFind found 278 doctor with experience in Atrial Fibrillation near Fountain Valley, CA. Of these, 150 are Experienced, 101 are Advanced and 22 are Distinguished.

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    278 providers found
      Cheng-han Chen
      Distinguished in Atrial Fibrillation
      Distinguished in Atrial Fibrillation

      Pacific Cardiovascular Associates

      3070 Bristol Street Ste 190, 
      Costa Mesa, CA 
       (3.3 miles away)
      Experience:
      18+ years
      Languages Spoken:
      English

      Cheng-han Chen is a Cardiologist in Costa Mesa, California. Dr. Chen has been practicing medicine for over 18 years and is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Aortic Valve Stenosis, Heart Failure, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

      John C. Champion
      Advanced in Atrial Fibrillation
      Cardiology | Internal Medicine
      Advanced in Atrial Fibrillation
      Cardiology | Internal Medicine

      Pacific Cardiovascular Associates

      3070 Bristol Street Ste 190, 
      Costa Mesa, CA 
       (3.3 miles away)
      Experience:
      31+ years
      Languages Spoken:
      English

      John Champion is a Cardiologist and an Internal Medicine provider in Costa Mesa, California. Dr. Champion has been practicing medicine for over 31 years and is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Sitosterolemia, Glucocorticoid-Remediable Aldosteronism, Hypertension, and High Cholesterol.

      Salvatore Rosanio
      Advanced in Atrial Fibrillation
      Advanced in Atrial Fibrillation

      Pacific Cardiovascular Associates

      3070 Bristol Street Ste 190, 
      Costa Mesa, CA 
       (3.3 miles away)
      Languages Spoken:
      English

      Salvatore Rosanio is a Cardiologist in Costa Mesa, California. Dr. Rosanio is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Heart Murmurs, and High Cholesterol.

      Learn about our expert tiers
      Advanced in Atrial Fibrillation
      Interventional Cardiology
      Advanced in Atrial Fibrillation
      Interventional Cardiology

      OC Cardiovascular Care Inc.

      11180 Warner Ave Ste 457, 
      Fountain Valley, CA 
       (0.2 miles away)
      Languages Spoken:
      English

      Tuan Nguyen is an Interventional Cardiologist in Fountain Valley, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Heart Attack, Inappropriate Sinus Tachycardia (IST), Apoplexy, Low Blood Pressure, and Gastrostomy.

      Distinguished in Atrial Fibrillation
      Cardiac Electrophysiology | Cardiology
      Distinguished in Atrial Fibrillation
      Cardiac Electrophysiology | Cardiology

      California Heart Associates

      18111 Brookhurst St, Suite 5100, 
      Fountain Valley, CA 
       (0.6 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English
      Offers Telehealth

      Nikhil Warrier is a Cardiac Electrophysiologist and a Cardiologist in Fountain Valley, California. Dr. Warrier has been practicing medicine for over 17 years and is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Sick Sinus Syndrome, Arrhythmias, Pacemaker Implantation, and Cardiac Ablation.

      Distinguished in Atrial Fibrillation
      Cardiology | Internal Medicine
      Distinguished in Atrial Fibrillation
      Cardiology | Internal Medicine

      California Heart Associates

      18111 Brookhurst St, 
      Fountain Valley, CA 
       (0.6 miles away)
      Experience:
      20+ years
      Languages Spoken:
      English
      Offers Telehealth

      Hoang Nguyen is a Cardiologist and an Internal Medicine provider in Fountain Valley, California. Dr. Nguyen has been practicing medicine for over 20 years and is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Angina, Heart Attack, Pacemaker Implantation, and Atherectomy.

      Steven Schiff
      Experienced in Atrial Fibrillation
      Experienced in Atrial Fibrillation

      California Heart Associates

      18111 Brookhurst St Ste 5100, 
      Fountain Valley,, CA 
       (0.6 miles away)
      Languages Spoken:
      English

      Steven Schiff is a Cardiologist in Fountain Valley,, California. Dr. Schiff is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Bicuspid Aortic Valve, Abdominal Aortic Aneurysm (AAA), and Pacemaker Implantation.

      Distinguished in Atrial Fibrillation
      Distinguished in Atrial Fibrillation

      Newport Heart Medical Group Inc.

      415 Old Newport Blvd Ste 200, 
      Newport Beach,, CA 
       (6.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Desmond Levin is a Cardiologist in Newport Beach,, California. Dr. Levin is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Angina.

      Distinguished in Atrial Fibrillation
      Distinguished in Atrial Fibrillation

      Mahnaz Behboodikhah MD Inc.

      500 Superior Ave Ste 345, 
      Newport Beach,, CA 
       (6.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Mahnaz Behboodikhah is a Cardiologist in Newport Beach,, California. Dr. Behboodikhah is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. Her top areas of expertise are Arrhythmias, High Cholesterol, Orthostatic Hypotension, Atrial Tachycardia, and Pacemaker Implantation.

      Distinguished in Atrial Fibrillation
      Distinguished in Atrial Fibrillation

      Office

      520 Superior Ave Ste 330, 
      Newport Beach, CA 
       (6.0 miles away)
      Languages Spoken:
      English

      Thomas Benvenuti is a Cardiologist in Newport Beach, California. Dr. Benvenuti is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, and Bidirectional Tachycardia.

      Distinguished in Atrial Fibrillation
      Cardiology
      Distinguished in Atrial Fibrillation
      Cardiology

      UCI Health

      101 The City Dr S, 
      Orange, CA 
       (6.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Byron Allen is a Cardiologist in Orange, California. Dr. Allen is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Coronary Heart Disease, Atrial Fibrillation, Angina, Arrhythmias, and Pacemaker Implantation.

      Distinguished in Atrial Fibrillation
      Cardiac Electrophysiology
      Distinguished in Atrial Fibrillation
      Cardiac Electrophysiology

      St. Joseph Heritage Orange-Cardiology

      1140 W La Veta Ave Ste 430, 
      Orange,, CA 
       (7.1 miles away)
      Languages Spoken:
      English

      Brian Kim is a Cardiac Electrophysiologist in Orange,, California. Dr. Kim is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Sick Sinus Syndrome, Pacemaker Implantation, and Cardiac Ablation.

      Experienced in Atrial Fibrillation
      Cardiology
      Experienced in Atrial Fibrillation
      Cardiology

      Office

      11100 Warner Ave Ste 162, 
      Fountain Valley, CA 
       (0.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Bao Bui is a Cardiologist in Fountain Valley, California. Dr. Bui is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Hypertensive Heart Disease, Pediatric Myocarditis, Heart Murmurs, and Coronary Heart Disease.

      Experienced in Atrial Fibrillation
      Experienced in Atrial Fibrillation

      Chris Tsimerekis M.D. Inc.

      11100 Warner Ave Ste 354, 
      Fountain Valley, CA 
       (0.2 miles away)
      Languages Spoken:
      English

      Abdulkareem Sharaf is a Cardiologist in Fountain Valley, California. Dr. Sharaf is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Inappropriate Sinus Tachycardia (IST), Familial Ventricular Tachycardia, Deep Vein Thrombosis, and Arrhythmias.

      Experienced in Atrial Fibrillation
      Experienced in Atrial Fibrillation

      California Heart Associates

      18111 Brookhurst St Ste 5100, 
      Fountain Valley,, CA 
       (0.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Christopher Berg is a Cardiologist in Fountain Valley,, California. Dr. Berg is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Atrial Fibrillation, High Cholesterol, and Heart Transplant.

      Experienced in Atrial Fibrillation
      Cardiology
      Experienced in Atrial Fibrillation
      Cardiology

      James Viet Tran. MD. Inc.

      15623 Brookhurst St, 
      Westminster,, CA 
       (1.8 miles away)
      Languages Spoken:
      English

      James Tran is a Cardiologist in Westminster,, California. Dr. Tran is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Angina, Hyperlipidemia Type 3, Atherosclerosis, Pacemaker Implantation, and Atherectomy.

      Experienced in Atrial Fibrillation
      Internal Medicine
      Experienced in Atrial Fibrillation
      Internal Medicine

      Jerrold D Cantor MD Inc.

      2621 S Bristol St Ste 305, 
      Santa Ana, CA 
       (3.0 miles away)
      Languages Spoken:
      English

      Jerrold Cantor is an Internal Medicine provider in Santa Ana, California. Dr. Cantor is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Heart Murmurs, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Heart Failure.

      Experienced in Atrial Fibrillation
      Cardiology
      Experienced in Atrial Fibrillation
      Cardiology

      Office

      17822 Beach Blvd Ste 243, 
      Huntington Beach, CA 
       (3.3 miles away)
      Languages Spoken:
      English

      Jesse Wasley is a Cardiologist in Huntington Beach, California. Dr. Wasley is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Mitral Valve Regurgitation, Restrictive Cardiomyopathy (RCM), Arterial Embolism, and Necrosis.

      Experienced in Atrial Fibrillation
      Cardiology
      Experienced in Atrial Fibrillation
      Cardiology

      Tung Huu Nguyen MD Inc

      9822 Bolsa Ave Ste F, 
      Westminster, CA 
       (3.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Tung Nguyen is a Cardiologist in Westminster, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Heart Murmurs, and Fainting.

      Experienced in Atrial Fibrillation
      Cardiology
      Experienced in Atrial Fibrillation
      Cardiology

      California Heart Specialists Inc.

      18800 Main St Ste 103, 
      Huntington Beach, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      Majed Chane is a Cardiologist in Huntington Beach, California. Dr. Chane is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Apoplexy, Familial Neurocardiogenic Syncope, Fainting, Pacemaker Implantation, and Heart Bypass Surgery.

      Showing 1-20 of 278

      Last Updated: 02/22/2026

      What is the definition of Atrial Fibrillation?

      Atrial fibrillation (AF), also known as A-fib, is the most common type of irregular heartbeat (arrythmia) of the heart’s upper chambers (atria) which can lead to strokes, heart failure, blood clots in the heart and/or blockage of blood flow (ischemia) in the heart or other organs. Atrial fibrillation is frequently combined with a rapid heart rate (tachycardia) and occurs when the upper chambers of the heart (atria) receive abnormal electrical signals from the heart’s conduction system that causes the atria to quiver. Atrial fibrillation is categorized by the following four main types: Occasional (Paroxysmal) atrial fibrillation – This type of atrial fibrillation comes and goes, can last from minutes to hours, or even last as long as a week, or occur repeatedly, and may go away on its own. Persistent atrial fibrillation – In this type of atrial fibrillation, the irregular heart rhythm (arrythmia) doesn’t go away on its own and needs treatment to restore normal rhythm. Long-standing persistent atrial fibrillation – This type of atrial fibrillation occurs continuously, lasting longer than 12 months. Permanent atrial fibrillation – In this type of atrial fibrillation, the irregular heart rhythm cannot be restored to normal, in which case it becomes permanent, requiring heart medications and anticoagulants to prevent blood clots. Atrial fibrillation that occurs in individuals who do not have any heart defects or damage is called lone atrial fibrillation.

      When should I see an Atrial Fibrillation doctor near Fountain Valley, CA?

      There are various reasons why you may want to see a specialist, such as: 

      • Your primary care provider recommends it. 
      • Your condition requires expert knowledge and specialized care. 
      • Your symptoms persist or worsen despite treatment. 
      • You need specialized testing or procedures. 
      • You want a second opinion.  

      What should I consider when choosing an Atrial Fibrillation doctor near Fountain Valley, CA?

      It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

      How does MediFind rank Atrial Fibrillation doctors near Fountain Valley, CA?

      MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

      What types of insurance are accepted by Atrial Fibrillation doctors near Fountain Valley, CA?

      Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

      How can I book an appointment online with an Atrial Fibrillation doctor near Fountain Valley, CA?

      MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Atrial Fibrillation doctor search results page. 

      Why is it important to get a second opinion from a different Atrial Fibrillation doctor?

      Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

      How can I prepare for my appointment with an Atrial Fibrillation doctor near Fountain Valley, CA?

      Prepare for your appointment by gathering the following items: 

      • Copies of medical records (dating back at least one year) 
      • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
      • Family history of disease 
      • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
      • Allergies to medications, food, latex, insects, etc.  
      • List of questions and concerns 
      • Your insurance card 

      You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

      What questions should I ask my Atrial Fibrillation doctor?

      Here are some sample questions: 

      • Can you explain in simple terms what this condition is and how it’s treated? 
      • What symptoms or side effects should I watch for? 
      • What tests will be involved, and when can I expect results? 
      • Are there other specialists I need to see? 
      • What’s the best way to reach you if I have follow-up questions? 

      How can I learn about the latest clinical trials and research advances my Atrial Fibrillation doctor may know about?

      MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

      MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

      Can I filter my search to show male or female Atrial Fibrillation doctors near Fountain Valley, CA?

      Look for the filter feature on the left side of the Atrial Fibrillation doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

      Can I filter my search to find an Atrial Fibrillation doctor that offers video calls?

      Look for the filter feature on the left-side of the Atrial Fibrillation doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

      Reviewed on: 11/11/24  

      By: MediFind Medical Staff 

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