The 20 Best Atrial Fibrillation Doctors Near Me in westminster, CA

Find the Top Atrial Fibrillation Experts and Specialists

Last Updated: 09/26/2026

Save doctors for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Already have a doctor?
Find A Second Opinion

MediFind found 290 doctor with experience in Atrial Fibrillation near westminster, CA. Of these, 157 are Experienced, 107 are Advanced and 22 are Distinguished.

Location
LocationClose
290 providers found
    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Pacific Cardiovascular Associates

    4281 Katella Ave Ste 109, 
    Los Alamitos, CA 
     (4.9 miles away)
    Languages Spoken:
    English

    Michael Dam is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Dam is rated as an Advanced 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 Hypertension, Glucocorticoid-Remediable Aldosteronism, Atrial Fibrillation, and High Cholesterol. Dr. Dam is board certified in ABIM-Cardiovascular Disease.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    Referral may be required

    Los Alamitos Cardiovascular

    5300 Katella Ave, 
    Los Alamitos, CA 
     (4.2 miles away)
    Languages Spoken:
    English

    Ramandeep Brar is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Brar is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 35 other conditions, according to our data. Her clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, High Cholesterol, Atrial Fibrillation, and Pacemaker Implantation. Dr. Brar is board certified in American Board Of Internal Medicine.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Referral may be required

    California Heart Associates

    18111 Brookhurst St, Suite 5100, 
    Fountain Valley, CA 
     (4.5 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.

    Learn about our expert tiers
    Experienced in Atrial Fibrillation
    Experienced in Atrial Fibrillation
    Referral may be required

    Pacific Cardiovascular Associates

    4281 Katella Ave Ste 109, 
    Los Alamitos, CA 
     (4.9 miles away)
    Languages Spoken:
    English

    Amarpal Chana is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Chana is rated as an Experienced 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 Glucocorticoid-Remediable Aldosteronism, Hypertension, High Cholesterol, and Angina. Dr. Chana is board certified in Cardiovascular Disease and Interventional Cardiology.

    Experienced in Atrial Fibrillation
    Cardiology
    Experienced in Atrial Fibrillation
    Cardiology
    Referral may be required

    Orange Coast Medical Center

    9920 Talbert Ave, 
    Fountain Valley,, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dinesh Kumar is a Cardiologist practicing medicine in Fountain Valley,, California. Dr. Kumar is rated as an Experienced 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 Deep Vein Thrombosis, Idiopathic Edema, Heart Attack, Phlegmasia Cerulea Dolens, and Pacemaker Implantation. Dr. Kumar is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Referral may be required

    UCI Health Cardiovascular Center

    101 The City Drive South, Building 25, 
    Orange, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    David Donaldson is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Orange, California. Dr. Donaldson 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, Arrhythmias, His Bundle Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), and Pacemaker Implantation. Dr. Donaldson is board certified in American Board Of Internal Medicine - Clinical Cardiac Electrophysiology.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    Referral may be required

    UCI Health Cardiovascular Center

    101 The City Drive South, Building 25, 
    Orange, CA 
     (6.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    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. Dr. Allen is board certified in American Board Of Internal Medicine - Internal Medicine and American Board Of Internal Medicine - Cardiovascular Disease. Dr. Allen is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Cardiology
    Advanced in Atrial Fibrillation
    Cardiology
    Referral may be required

    Pacific Cardiovascular Associates

    710 N Euclid Street Ste 214, 
    Anaheim, CA 
     (6.3 miles away)
    Languages Spoken:
    English

    Lamia Dris is a Cardiologist practicing medicine in Anaheim, California. Dr. Dris is rated as an Advanced 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 Sick Sinus Syndrome, Arrhythmias, Familial Progressive Cardiac Conduction Defect, and Cardiomyopathy. Dr. Dris is board certified in ABIM - Internal Medicine, ABIM - Cardiovascular Disease, Nuclear Cardiology, and Adult Echocardiography.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Pacific Cardiovascular Associates

    710 N Euclid Street Ste 214, 
    Anaheim, CA 
     (6.3 miles away)
    Languages Spoken:
    English

    David Weinberg is a Cardiologist practicing medicine in Anaheim, California. Dr. Weinberg is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, High Cholesterol, and Atrial Fibrillation. Dr. Weinberg is board certified in ABIM - Cardiovascular Disease.

    Advanced in Atrial Fibrillation
    Internal Medicine
    Advanced in Atrial Fibrillation
    Internal Medicine

    Pacific Cardiovascular Associates

    710 N Euclid Street Ste 214, 
    Anaheim, CA 
     (6.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Pejman Raeisi-Giglou practices in Anaheim, California. Dr. Raeisi-Giglou 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 Metabolic Syndrome, Hypertension, Familial Combined Hyperlipidemia, and Xanthoma. Dr. Raeisi-Giglou is board certified in ABIM - Internal Medicine, ABIM - Cardiovascular Disease, and American Society Of Nuclear Medicine. Dr. Raeisi-Giglou is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Pacific Cardiovascular Associates

    710 N Euclid Street Ste 214, 
    Anaheim, CA 
     (6.3 miles away)
    Languages Spoken:
    English

    Jessica Li is a Cardiologist practicing medicine in Anaheim, California. Dr. Li is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Sitosterolemia, and High Cholesterol. Dr. Li is board certified in ABIM-Cardiovascular Disease, National Board Of Echocardiography, and Certification Board Of Nuclear Cardiology.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation
    Referral may be required

    Pacific Cardiovascular Associates

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

    Cheng-Han Chen is a Cardiologist practicing medicine in Ivrine, California. 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 ABIM - Internal Medicine, ABIM - Cardiovascular Disease, ABIM - Interventional Cardiovascular Disease, NBE - Adult Comprehensive Echocardiography, and CBNC - Nuclear Cardiology.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Frank G. Rubino M.D. Inc.

    10681 Bolsa Ave, 
    Garden Grove,, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Vinh-khiem Nguyen-Phuc is a Cardiologist practicing medicine in Garden Grove,, California. Dr. Nguyen-Phuc 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. Dr. Nguyen-Phuc is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Interventional Cardiology
    Advanced in Atrial Fibrillation
    Interventional Cardiology
    Referral may be required

    OC Cardiovascular Care Inc.

    11180 Warner Ave Ste 457, 
    Fountain Valley, CA 
     (4.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    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 13 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Inappropriate Sinus Tachycardia (IST), Apoplexy, Angina, and Gastrostomy. Dr. Nguyen is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Los Alamitos Cardiovascular

    5300 Katella Ave, 
    Los Alamitos, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Bret Witter is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Witter is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Neurocardiogenic Syncope, Atrial Fibrillation, and Pacemaker Implantation. Dr. Witter is board certified in American Board Of Internal Medicine. Dr. Witter is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Los Alamitos Cardiovascular

    5300 Katella Ave, 
    Los Alamitos, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Steven Forman is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Forman is rated as an Advanced 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 Varicose Veins, Glucocorticoid-Remediable Aldosteronism, Hypertension, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Forman is board certified in American Board Of Internal Medicine. Dr. Forman is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Los Alamitos Cardiovascular

    5300 Katella Ave, 
    Los Alamitos, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Timothy O'neill is a Cardiologist practicing medicine in Los Alamitos, California. Dr. O'neill is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Mitral Valve Regurgitation, and Aortic Regurgitation. Dr. O'neill is board certified in American Board Of Internal Medicine. Dr. O'neill is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Los Alamitos Cardiovascular

    5300 Katella Ave, 
    Los Alamitos, CA 
     (4.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Robert Lee is a Cardiologist practicing medicine in Los Alamitos, California. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Mitral Valve Regurgitation, and Necrosis. Dr. Lee is board certified in American Board Of Internal Medicine. Dr. Lee is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    Joseph K Song MD Inc

    12828 Harbor Blvd, 
    Garden Grove, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Joseph Song is a Cardiologist practicing medicine in Garden Grove, California. Dr. Song 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 Hypertensive Heart Disease, Mitral Valve Prolapse, Pediatric Myocarditis, Pacemaker Implantation, and Heart Transplant. Dr. Song is board certified in American Board Of Internal Medicine. Dr. Song is currently accepting new patients.

    Advanced in Atrial Fibrillation
    Advanced in Atrial Fibrillation
    Referral may be required

    California Heart Associates

    18111 Brookhurst St, 
    Fountain Valley, CA 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hoang Nguyen is a 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 12 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. Dr. Nguyen is currently accepting new patients.

    Showing 1-20 of 290

    Last Updated: 09/26/2026

    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 westminster, 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 westminster, 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 westminster, 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 westminster, 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 westminster, 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 westminster, 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 westminster, 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 

    Read more about our Content Policy.