The 20 Best Atrial Fibrillation Doctors Near Me in Fountain Valley, CA

Find the Top Atrial Fibrillation Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 278 doctor with experience in Atrial Fibrillation near Fountain Valley, CA. Of these, 149 are Experienced, 102 are Advanced and 22 are Distinguished.

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278 providers found
    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 practicing medicine in Costa Mesa, California. He has been practicing medicine for over 18 years. Dr. Chen is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Aortic Valve Stenosis, Heart Failure, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Chen is board certified in American Board Of Internal Medicine.

    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 practicing medicine in Costa Mesa, California. He has been practicing medicine for over 31 years. Dr. Champion is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Sitosterolemia, Hypertension, Glucocorticoid-Remediable Aldosteronism, and High Cholesterol. Dr. Champion is board certified in American Board Of Internal Medicine.

    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 practicing medicine in Costa Mesa, California. Dr. Rosanio is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Heart Murmurs, and High Cholesterol. Dr. Rosanio is board certified in ABIM - Cardiovascular Disease and Nuclear Cardiology.

    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 practicing medicine in Fountain Valley, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses 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)
    Languages Spoken:
    English
    Offers Telehealth

    Nikhil Warrier is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Fountain Valley, California. Dr. Warrier is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses 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 practicing medicine in Fountain Valley, California. He has been practicing medicine for over 20 years. Dr. Nguyen is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Angina, Heart Attack, Pacemaker Implantation, and Atherectomy. Dr. Nguyen is board certified in American Board Of Internal Medicine.

    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 practicing medicine in Fountain Valley,, California. Dr. Schiff is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Bicuspid Aortic Valve, Abdominal Aortic Aneurysm (AAA), and Pacemaker Implantation.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation

    T Mai Phan MD Inc.

    9500 Bolsa Ave Ste P, 
    Westminster,, CA 
     (3.8 miles away)
    Languages Spoken:
    English

    Vinh-khiem Nguyen is a Cardiologist practicing medicine in Westminster,, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Sick Sinus Syndrome, Arrhythmias, Glucocorticoid-Remediable Aldosteronism, Gastrostomy, and Pacemaker Implantation.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    3070 Bristol Street, Suite 190, 
    Costa Mesa, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ryland Melford is a Cardiologist practicing medicine in Costa Mesa, California. Dr. Melford is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Mitral Valve Regurgitation, Familial Neurocardiogenic Syncope, Fainting, Atrial Fibrillation, and Pacemaker Implantation. Dr. Melford is currently accepting new patients.

    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 practicing medicine in Newport Beach,, California. Dr. Levin is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses 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

    Mahnaz Behboodikhah is a Cardiologist practicing medicine in Newport Beach,, California. Dr. Behboodikhah is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 45 other conditions, according to our data. Her clinical expertise encompasses Arrhythmias, High Cholesterol, Orthostatic Hypotension, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), 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 practicing medicine in Newport Beach, California. Dr. Benvenuti is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses 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 practicing medicine in Orange, California. Dr. Allen is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Atrial Fibrillation, Angina, Arrhythmias, and Pacemaker Implantation.

    Distinguished in Atrial Fibrillation
    Cardiology | Cardiac Electrophysiology
    Distinguished in Atrial Fibrillation
    Cardiology | Cardiac Electrophysiology
    1140 West La Veta Avenue, Suite 640, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jay Lee is a Cardiologist and a Cardiac Electrophysiologist practicing medicine in Orange, California. Dr. Lee is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), His Bundle Tachycardia, Pacemaker Implantation, and Cardiac Ablation. Dr. Lee is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology
    1140 West La Veta Avenue, Suite 640, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Thuy Le is a Cardiologist practicing medicine in Orange, California. Dr. Le is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Sick Sinus Syndrome, Arrhythmias, Vitrectomy, and Pacemaker Implantation. Dr. Le is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    1140 West La Veta Avenue, Suite 640, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jairo Marin is a Cardiologist practicing medicine in Orange, California. Dr. Marin is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Mitral Valve Regurgitation, Atrial Fibrillation, Necrosis, Pacemaker Implantation, and Atherectomy. Dr. Marin is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    1140 West La Veta Avenue, Suite 640, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Brian Kolski is a Cardiologist practicing medicine in Orange, California. Dr. Kolski is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Mitral Valve Regurgitation, Heart Attack, Atrial Fibrillation, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Kolski is currently accepting new patients.

    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 practicing medicine in Orange,, California. Dr. Kim is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Sick Sinus Syndrome, Pacemaker Implantation, and Cardiac Ablation.

    Distinguished in Atrial Fibrillation
    Cardiology | Interventional Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology | Interventional Cardiology
    1100 West Stewart Drive, 
    Orange, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sanjay Bhojraj is a Cardiologist and an Interventional Cardiologist practicing medicine in Orange, California. Dr. Bhojraj is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Heart Attack, Angina, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Bhojraj is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation

    Pacific Cardiovascular Associates

    35 Creek Rd, 
    Ivrine, CA 
     (9.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    George Tadros is a Cardiologist practicing medicine in Ivrine, California. Dr. Tadros is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Arterial Embolism, Apoplexy, and Inappropriate Sinus Tachycardia (IST).

    Showing 1-20 of 278

    Last Updated: 04/28/2026

    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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