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    Last Updated: 10/30/2025

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    MediFind found 159 doctor with experience in Arrhythmias near Ontario, CA. Of these, 120 are Experienced, 26 are Advanced, 12 are Distinguished and 1 are Elite.

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    159 providers found
      Elite in Arrhythmias

      Kumaraswamy Nanthakumar
      Elite in Arrhythmias

      Kumaraswamy Nanthakumar
      Toronto, ON, CA 

      Kumaraswamy Nanthakumar practices in Toronto, Canada. Nanthakumar is rated as an Elite expert by MediFind in the treatment of Arrhythmias. Their top areas of expertise are Ventricular Fibrillation, Familial Ventricular Tachycardia, Ventricular Tachycardia, Cardiac Ablation, and Heart Transplant.

      David H. Birnie
      Distinguished in Arrhythmias

      David H. Birnie
      Distinguished in Arrhythmias

      David H. Birnie
      40 Ruskin Street, 
      Ottawa, ON, CA 

      David Birnie practices in Ottawa, Canada. Mr. Birnie is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Sarcoidosis, Cardiomyopathy, Atrial Fibrillation, Heart Block, and Cardiac Ablation.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Distinguished in Arrhythmias

      Adrian M. Baranchuk
      Distinguished in Arrhythmias

      Adrian M. Baranchuk
      76 Stuart Street, 
      Kingston, ON, CA 

      Adrian Baranchuk practices in Kingston, Canada. Mr. Baranchuk is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Heart Block, Atrial Fibrillation, Brugada Syndrome, Cardiac Ablation, and Heart Bypass Surgery.

      Learn about our expert tiers
      Distinguished in Arrhythmias

      Eugene Downar
      Distinguished in Arrhythmias

      Eugene Downar
      150 Gerrard Street West, GW3-552, 
      Toronto, ON, CA 

      Eugene Downar practices in Toronto, Canada. Mr. Downar is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Familial Ventricular Tachycardia, Cardiac Ablation, and Heart Transplant.

      Distinguished in Arrhythmias

      Krishnakumar M. Nair
      Distinguished in Arrhythmias

      Krishnakumar M. Nair
      Toronto, ON, CA 

      Krishnakumar Nair practices in Toronto, Canada. Nair is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. Their top areas of expertise are Arrhythmias, Tetralogy of Fallot, Ventricular Tachycardia, Cardiac Ablation, and Heart Transplant.

      Distinguished in Arrhythmias

      Pablo B. Nery
      Distinguished in Arrhythmias

      Pablo B. Nery
      40 Ruskin Street, 
      Ottawa, ON, CA 

      Pablo Nery practices in Ottawa, Canada. Mr. Nery is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Sarcoidosis, Arrhythmias, Ventricular Tachycardia, Atrial Fibrillation, and Cardiac Ablation.

      Distinguished in Arrhythmias

      Stephane Masse
      Distinguished in Arrhythmias

      Stephane Masse
      150 Gerrard Street West, GW3-552, 
      Toronto, ON, CA 

      Stephane Masse practices in Toronto, Canada. Ms. Masse is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. Her top areas of expertise are Ventricular Fibrillation, Arrhythmias, Ventricular Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), and Cardiac Ablation.

      Distinguished in Arrhythmias

      Abhishek P. Bhaskaran
      Distinguished in Arrhythmias

      Abhishek P. Bhaskaran
      Toronto, ON, CA 

      Abhishek Bhaskaran practices in Toronto, Canada. Mr. Bhaskaran is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Arrhythmias, Ventricular Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), Familial Ventricular Tachycardia, and Cardiac Ablation.

      Distinguished in Arrhythmias

      George J. Klein
      Distinguished in Arrhythmias

      George J. Klein
      339 Windermere Rd, 
      London, ON, CA 

      George Klein practices in London, Canada. Mr. Klein is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Wolff-Parkinson-White Syndrome, Arrhythmias, Cardiac Arrest, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), and Cardiac Ablation.

      Distinguished in Arrhythmias

      Lorne J. Gula
      Distinguished in Arrhythmias

      Lorne J. Gula
      London, ON, CA 

      Lorne Gula practices in London, Canada. Mr. Gula is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Arrhythmias, Ventricular Fibrillation, Ventricular Tachycardia, Cardiac Arrest, and Cardiac Ablation.

      Distinguished in Arrhythmias

      Jeff S. Healey
      Distinguished in Arrhythmias

      Jeff S. Healey
      1200 Main St W, 
      Hamilton, ON, CA 

      Jeff Healey practices in Hamilton, Canada. Mr. Healey is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Stroke, Arrhythmias, Cardiac Ablation, and Coronary Artery Bypass Graft (CABG).

      Distinguished in Arrhythmias

      Vijay S. Chauhan
      Distinguished in Arrhythmias

      Vijay S. Chauhan
      Toronto, ON, CA 

      Vijay Chauhan practices in Toronto, Canada. Mr. Chauhan is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Cardiomyopathy, Cardiac Arrest, Arrhythmias, Ventricular Tachycardia, and Cardiac Ablation.

      Distinguished in Arrhythmias

      Damian P. Redfearn
      Distinguished in Arrhythmias

      Damian P. Redfearn
      Armstrong 3, 76 Stuart Street, 
      Kingston, ON, CA 

      Damian Redfearn practices in Kingston, Canada. Mr. Redfearn is rated as a Distinguished expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Heart Bypass Surgery.

      Advanced in Arrhythmias

      Allan C. Skanes
      Advanced in Arrhythmias

      Allan C. Skanes
      London, ON, CA 

      Allan Skanes practices in London, Canada. Mr. Skanes is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Wolff-Parkinson-White Syndrome, and Cardiac Ablation.

      Advanced in Arrhythmias

      Martin S. Green
      Advanced in Arrhythmias

      Martin S. Green
      40 Ruskin Street, 
      Ottawa, ON, CA 

      Martin Green practices in Ottawa, Canada. Mr. Green is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Arrhythmias, Cardiac Arrest, Ventricular Tachycardia, Heart Block, and Cardiac Ablation.

      Advanced in Arrhythmias

      Paul Dorian
      Advanced in Arrhythmias

      Paul Dorian
      Toronto, ON, CA 

      Paul Dorian practices in Toronto, Canada. Mr. Dorian is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Ventricular Fibrillation, Atrial Fibrillation, Cardiac Arrest, Stroke, and Cardiac Ablation.

      Advanced in Arrhythmias

      Girish M. Nair
      Advanced in Arrhythmias

      Girish M. Nair
      40 Ruskin Street, 
      Ottawa, ON, CA 

      Girish Nair practices in Ottawa, Canada. Mr. Nair is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Ventricular Fibrillation, Ventricular Tachycardia, and Cardiac Ablation.

      Advanced in Arrhythmias

      George A. Wells
      Advanced in Arrhythmias

      George A. Wells
      40 Ruskin Street, 
      Ottawa, ON, CA 

      George Wells practices in Ottawa, Canada. Mr. Wells is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Fainting, Heart Failure, Transient Ischemic Attack (TIA), Cardiac Ablation, and Coronary Artery Bypass Graft (CABG).

      Advanced in Arrhythmias

      Christopher S. Simpson
      Advanced in Arrhythmias

      Christopher S. Simpson
      Armstrong 3, 76 Stuart Street, 
      Kingston, ON, CA 

      Christopher Simpson practices in Kingston, Canada. Mr. Simpson is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. His top areas of expertise are Cardiac Arrest, Ventricular Fibrillation, Arrhythmias, Ventricular Tachycardia, and Cardiac Ablation.

      Advanced in Arrhythmias

      Jeffrey S. Healey
      Advanced in Arrhythmias

      Jeffrey S. Healey
      Hamilton, ON, CA 

      Jeffrey Healey practices in Hamilton, Canada. Healey is rated as an Advanced expert by MediFind in the treatment of Arrhythmias. Their top areas of expertise are Atrial Fibrillation, Cardiac Arrest, Arterial Embolism, Cardiac Ablation, and Transcatheter Aortic Valve Replacement (TAVR).

      While we make every effort to provide the best results possible, data is currently limited outside of the United States. Doctors listed may include both clinicians and researchers, and individuals relocate frequently. We recommend contacting doctors directly to confirm their location and areas of focus. Contact information is provided when available. Learn more about our expert tiers.
      Showing 1-20 of 159

      Last Updated: 10/30/2025

      What is the definition of Arrhythmias?

      An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly.

      An arrhythmia can be harmless, a sign of other heart problems, or an immediate danger to your health.

      When should I see an Arrhythmias doctor in Ontario, 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 Arrhythmias doctor in Ontario, 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 do I find the best Arrhythmias doctor in Ontario, CA?

      You can find an Arrhythmias doctor in any of the 10 largest U.S. cities by clicking below:

      Arrhythmias doctor near New York, NY
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      Arrhythmias doctor near Boston, MA
      Arrhythmias doctor near Dallas, TX
      Arrhythmias doctor near San Jose, CA

      How does MediFind rank Arrhythmias doctors in Ontario, 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 Arrhythmias doctors in Ontario, 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 Arrhythmias doctor in Ontario, 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 Arrhythmias doctor search results page. 

      Why is it important to get a second opinion from a different Arrhythmias 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 Arrhythmias doctor in Ontario, 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 Arrhythmias 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 Arrhythmias 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 Arrhythmias doctors in Ontario, CA?

      Look for the filter feature on the left side of the Arrhythmias 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 Arrhythmias doctor that offers video calls?

      Look for the filter feature on the left-side of the Arrhythmias 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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