The 20 Best Atrial Fibrillation Doctors Near Me in Mission Viejo, CA

Find the Top Atrial Fibrillation Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 93 doctor with experience in Atrial Fibrillation near Mission Viejo, CA. Of these, 51 are Experienced, 26 are Advanced and 15 are Distinguished.

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93 providers found
    Distinguished in Atrial Fibrillation
    Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology

    Pacific Cardiovascular Associates

    24022 Calle De La Plata Ste 500, 
    Laguna Hills, CA 
     (2.3 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English

    Scott Ard is a Cardiologist practicing medicine in Laguna Hills, California. He has been practicing medicine for over 23 years. Dr. Ard is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Heart Murmurs, Atrial Fibrillation, Hypertensive Heart Disease, Atherosclerosis, and Pacemaker Implantation. Dr. Ard is board certified in American Board Of Internal Medicine.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Nuclear Medicine | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Nuclear Medicine | Cardiology
    26800 Crown Valley Parkway, Suite 103, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Lynne Hung is a Cardiac Electrophysiologist and a Nuclear Medicine provider practicing medicine in Mission Viejo, California. Dr. Hung is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 21 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Paroxysmal Supraventricular Tachycardia (PSVT), His Bundle Tachycardia, Pacemaker Implantation, and Cardiac Ablation. Dr. Hung is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    26800 Crown Valley Parkway, Suite 103, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jay Tiongson is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Mission Viejo, California. Dr. Tiongson 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, His Bundle Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), Pacemaker Implantation, and Cardiac Ablation. Dr. Tiongson is currently accepting new patients.

    Learn about our expert tiers
    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    26800 Crown Valley Parkway, Suite 103, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Aseem Desai is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Desai 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, Paroxysmal Supraventricular Tachycardia (PSVT), Atrial Tachycardia, Cardiac Ablation, and Pacemaker Implantation. Dr. Desai is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology
    26800 Crown Valley Parkway, Suite 120, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tze Ip is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Ip is rated as a Distinguished 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 Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Aortic Regurgitation. Dr. Ip is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    26800 Crown Valley Parkway, Suite 120, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Miyamoto is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Miyamoto is rated as a Distinguished 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 Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Angina. Dr. Miyamoto is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiology | Interventional Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology | Interventional Cardiology
    26800 Crown Valley Parkway, Suite 120, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Arthur Loussararian is a Cardiologist and an Interventional Cardiologist practicing medicine in Mission Viejo, California. Dr. Loussararian 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 Atrial Fibrillation, Thoracic Aortic Aneurysm, Abdominal Aortic Aneurysm (AAA), and Arterial Embolism. Dr. Loussararian is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    26800 Crown Valley Parkway, Suite 250, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English

    Donald Rediker is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Rediker 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 Paroxysmal Supraventricular Tachycardia (PSVT), His Bundle Tachycardia, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Pacemaker Implantation, and Heart Bypass Surgery.

    Distinguished in Atrial Fibrillation
    Cardiology
    Distinguished in Atrial Fibrillation
    Cardiology
    26800 Crown Valley Parkway, Suite 250, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sheri Koplik is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Koplik is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Coronary Heart Disease, Atherosclerosis, and Aortic Regurgitation. Dr. Koplik is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Interventional Cardiology
    Distinguished in Atrial Fibrillation
    Interventional Cardiology
    24411 Health Center Drive, Suite 550, 
    Laguna Hills, CA 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Daniel Lamont is an Interventional Cardiologist practicing medicine in Laguna Hills, California. Dr. Lamont is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Mitral Valve Regurgitation, Atrial Fibrillation, Unstable Angina, Pacemaker Implantation, and Cardiac Ablation. Dr. Lamont is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    24411 Health Center Drive, Suite 550, 
    Laguna Hills, CA 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ronald Gim is a Cardiologist practicing medicine in Laguna Hills, California. Dr. Gim 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, Mitral Valve Regurgitation, Unstable Angina, Pacemaker Implantation, and Heart Bypass Surgery. Dr. Gim is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Interventional Cardiology
    Distinguished in Atrial Fibrillation
    Interventional Cardiology
    24411 Health Center Drive, Suite 550, 
    Laguna Hills, CA 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    John Bahadorani is an Interventional Cardiologist practicing medicine in Laguna Hills, California. Dr. Bahadorani is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Unstable Angina, Atrial Fibrillation, Mitral Valve Regurgitation, Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery. Dr. Bahadorani is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Cardiology | Internal Medicine
    Advanced in Atrial Fibrillation
    Cardiology | Internal Medicine

    Pacific Cardiovascular Associates

    24022 Calle De La Plata Ste 500, 
    Laguna Hills, CA 
     (2.3 miles away)
    Experience:
    45+ years
    Languages Spoken:
    English

    George Konugres is a Cardiologist and an Internal Medicine provider practicing medicine in Laguna Hills, California. He has been practicing medicine for over 45 years. Dr. Konugres is rated as an Advanced 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 Heart Attack, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Apoplexy. Dr. Konugres is board certified in American Board Of Internal Medicine.

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

    South Orange County Cardiology Grp

    24411 Health Ctr Dr, Suite 550, 
    Laguna Hills, CA 
     (2.3 miles away)
    Languages Spoken:
    English

    Ashish Shah is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Laguna Hills, California. Dr. Shah 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, Familial Neurocardiogenic Syncope, Mitral Valve Regurgitation, Pacemaker Implantation, and Cardiac Ablation.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Laguna Hills, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Inderpal Gujral is a Cardiologist practicing medicine in Laguna Hills, California. Dr. Gujral is rated as an Advanced 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, Atrial Fibrillation, Stable Angina, Fainting, and Pacemaker Implantation. Dr. Gujral is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation

    Office

    24411 Health Center Dr Ste 550, 
    Laguna Hills,, CA 
     (2.3 miles away)
    Languages Spoken:
    English

    Howard Frumin is a Cardiologist practicing medicine in Laguna Hills,, California. Dr. Frumin is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Mitral Valve Regurgitation, Sick Sinus Syndrome, Cardiac Ablation, and Pacemaker Implantation.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation

    Pegasus Physical Therapy Solutions Inc.

    23521 Paseo De Valencia Ste 303, 
    Laguna Hills,, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sasan Ghaffari is a Cardiologist practicing medicine in Laguna Hills,, California. Dr. Ghaffari is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Arrhythmias, Sick Sinus Syndrome, Pulmonary Hypertension, Adenosine Deaminase 2 Deficiency, and Pacemaker Implantation.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation

    Pegasus Physical Therapy Solutions Inc.

    23521 Paseo De Valencia Ste 303, 
    Laguna Hills, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ramin Rabbani is a Cardiologist practicing medicine in Laguna Hills, California. Dr. Rabbani is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Sick Sinus Syndrome, Arrhythmias, Angina, and Coronary Heart Disease.

    Advanced in Atrial Fibrillation
    Interventional Cardiology | Cardiology
    Advanced in Atrial Fibrillation
    Interventional Cardiology | Cardiology
    26800 Crown Valley Parkway, Suite 250, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ihab Alomari is a Cardiologist and an Interventional Cardiologist practicing medicine in Mission Viejo, California. Dr. Alomari is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Heart Failure with Preserved Ejection Fraction (HFpEF), Atherosclerosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement. Dr. Alomari is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    26800 Crown Valley Parkway, Suite 250, 
    Mission Viejo, CA 
     (2.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Absalom Hepner is a Cardiologist practicing medicine in Mission Viejo, California. Dr. Hepner is rated as an Advanced 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 Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Angina. Dr. Hepner is currently accepting new patients.

    Showing 1-20 of 93

    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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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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