The 20 Best Atrial Septal Defect (ASD) Doctors in Canada

Find the Top Atrial Septal Defect (ASD) Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 163 doctor with experience in Atrial Septal Defect (ASD) near Canada. Of these, 125 are Experienced, 27 are Advanced, 10 are Distinguished and 1 are Elite.

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163 providers found
    Elite in Atrial Septal Defect (ASD)

    Josep Cabau-Rodes
    Elite in Atrial Septal Defect (ASD)

    Josep Cabau-Rodes
    Referral may be required
    St. Paul's Hospital, 
    Vancouver, CA 

    Josep Cabau-Rodes practices practicing medicine in Vancouver, Canada. Mr. Cabau-Rodes is rated as an Elite expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Aortic Valve Stenosis, Aortic Regurgitation, Heart Block, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Distinguished in Atrial Septal Defect (ASD)

    Lars N. Sondergaard
    Distinguished in Atrial Septal Defect (ASD)

    Lars N. Sondergaard
    Referral may be required

    St Paul's Hospital

    Vancouver, BC, CA 

    Lars Sondergaard practices practicing medicine in Vancouver, Canada. Mr. Sondergaard is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Aortic Valve Stenosis, Bicuspid Aortic Valve, Patent Foramen Ovale, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Distinguished in Atrial Septal Defect (ASD)

    Lee N. Benson
    Distinguished in Atrial Septal Defect (ASD)

    Lee N. Benson
    Referral may be required
    555 University Ave, 
    Toronto, ON, CA 

    Lee Benson practices practicing medicine in Toronto, Canada. Mr. Benson is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Coarctation of the Aorta, Atrial Septal Defect (ASD), Tetralogy of Fallot, Patent Foramen Ovale Repair, and Stent Placement.

    Learn about our expert tiers
    Distinguished in Atrial Septal Defect (ASD)

    Eric M. Horlick
    Distinguished in Atrial Septal Defect (ASD)

    Eric M. Horlick
    Referral may be required
    200 Elizabeth Street, M5G 2C4, 
    Toronto, ON, CA 

    Eric Horlick practices practicing medicine in Toronto, Canada. Mr. Horlick is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Atrial Septal Defect (ASD), Patent Foramen Ovale, Coarctation of the Aorta, Patent Foramen Ovale Repair, and Transcatheter Aortic Valve Replacement (TAVR).

    Distinguished in Atrial Septal Defect (ASD)

    Mark D. Osten
    Distinguished in Atrial Septal Defect (ASD)

    Mark D. Osten
    Referral may be required
    Toronto, ON, CA 

    Mark Osten practices practicing medicine in Toronto, Canada. Mr. Osten is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Atrial Septal Defect (ASD), Patent Foramen Ovale, Coarctation of the Aorta, Patent Foramen Ovale Repair, and Transcatheter Aortic Valve Replacement (TAVR).

    Distinguished in Atrial Septal Defect (ASD)

    Christine Houde
    Distinguished in Atrial Septal Defect (ASD)

    Christine Houde
    Referral may be required
    Quebec, QC, CA 

    Christine Houde practices practicing medicine in Quebec, Canada. Ms. Houde is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Atrial Septal Defect (ASD), Patent Foramen Ovale, Transient Ischemic Attack (TIA), Stroke, and Patent Foramen Ovale Repair.

    Distinguished in Atrial Septal Defect (ASD)

    Peter Juni
    Distinguished in Atrial Septal Defect (ASD)

    Peter Juni
    Referral may be required
    Li Ka Shing Knowledge Institute Of St Michael's Hospital, 
    Toronto, ON, CA 

    Peter Juni practices practicing medicine in Toronto, Canada. Mr. Juni is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Acute Coronary Syndrome, Coronary Heart Disease, Heart Attack, Percutaneous Coronary Intervention (PCI), and Patent Foramen Ovale Repair.

    Distinguished in Atrial Septal Defect (ASD)

    Janelle D. Spence
    Distinguished in Atrial Septal Defect (ASD)

    Janelle D. Spence
    Referral may be required
    1400 Western Road, N6aG 2V4, 
    London, ON, CA 

    Janelle Spence practices practicing medicine in London, Canada. Ms. Spence is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Carotid Artery Disease, Stroke, Atherosclerosis, Stent Placement, and Hepatectomy.

    Distinguished in Atrial Septal Defect (ASD)

    Malek Kass
    Distinguished in Atrial Septal Defect (ASD)

    Malek Kass
    Referral may be required

    St. Boniface General Hospital

    Winnipeg, MB, CA 

    Malek Kass practices practicing medicine in Winnipeg, Canada. Mr. Kass is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Patent Foramen Ovale, Atrial Septal Defect (ASD), Cerebral Hypoxia, Angioplasty, and Percutaneous Coronary Intervention (PCI).

    Distinguished in Atrial Septal Defect (ASD)

    Cheryl S. Jaigobin
    Distinguished in Atrial Septal Defect (ASD)

    Cheryl S. Jaigobin
    Referral may be required
    399 Bathurst Street, 
    Toronto, CA 

    Cheryl Jaigobin practices practicing medicine in Toronto, Canada. Ms. Jaigobin is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Patent Foramen Ovale, Atrial Septal Defect (ASD), Stroke, Moyamoya Disease, and Patent Foramen Ovale Repair.

    Distinguished in Atrial Septal Defect (ASD)

    Valtteri M. Muroke
    Distinguished in Atrial Septal Defect (ASD)

    Valtteri M. Muroke
    Referral may be required
    Montreal, QC, CA 

    Valtteri Muroke practices practicing medicine in Montreal, Canada. Muroke is rated as a Distinguished expert by MediFind in the treatment of Atrial Septal Defect (ASD). They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Atrial Septal Defect (ASD), Sick Sinus Syndrome, Infective Endocarditis, and Ventricular Fibrillation.

    Advanced in Atrial Septal Defect (ASD)

    Ariane J. Marelli
    Advanced in Atrial Septal Defect (ASD)

    Ariane J. Marelli
    Referral may be required
    Montreal, QC, CA 

    Ariane Marelli practices practicing medicine in Montreal, Canada. Ms. Marelli is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Congenital Heart Disease (CHD), Tetralogy of Fallot, Atrial Septal Defect (ASD), and Heart Failure.

    Advanced in Atrial Septal Defect (ASD)

    Paul Khairy
    Advanced in Atrial Septal Defect (ASD)

    Paul Khairy
    Referral may be required
    5000 Bélanger St, 
    Montreal, QC, CA 

    Paul Khairy practices practicing medicine in Montreal, Canada. Mr. Khairy is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Congenital Heart Disease (CHD), Tetralogy of Fallot, Atrial Fibrillation, Cardiac Ablation, and Heart Transplant.

    Advanced in Atrial Septal Defect (ASD)

    Jules Mesnier
    Advanced in Atrial Septal Defect (ASD)

    Jules Mesnier
    Referral may be required
    Quebec, QC, CA 

    Jules Mesnier practices practicing medicine in Quebec, Canada. Mr. Mesnier is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Patent Foramen Ovale, Atrial Septal Defect (ASD), Aortic Valve Stenosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Advanced in Atrial Septal Defect (ASD)

    Julio I. Pasos-Farjat
    Advanced in Atrial Septal Defect (ASD)

    Julio I. Pasos-Farjat
    Referral may be required
    Quebec, QC, CA 

    Julio Pasos-Farjat practices practicing medicine in Quebec, Canada. Mr. Pasos-Farjat is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Patent Foramen Ovale, Atrial Septal Defect (ASD), Aortic Valve Stenosis, Patent Foramen Ovale Repair, and Transcatheter Aortic Valve Replacement (TAVR).

    Advanced in Atrial Septal Defect (ASD)

    Melanie -. Cote
    Advanced in Atrial Septal Defect (ASD)

    Melanie -. Cote
    Referral may be required
    Quebec, QC, CA 

    Melanie Cote practices practicing medicine in Quebec, Canada. Ms. Cote is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Atrial Septal Defect (ASD), Patent Foramen Ovale, Aortic Valve Stenosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Advanced in Atrial Septal Defect (ASD)

    Luc L. Mertens
    Advanced in Atrial Septal Defect (ASD)

    Luc L. Mertens
    Referral may be required
    555 University Ave, 
    Toronto, ON, CA 

    Luc Mertens practices practicing medicine in Toronto, Canada. Mr. Mertens is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Tetralogy of Fallot, Atrioventricular Septal Defect, Coarctation of the Aorta, Heart Transplant, and Kidney Transplant.

    Advanced in Atrial Septal Defect (ASD)

    Douglas S. Lee
    Advanced in Atrial Septal Defect (ASD)

    Douglas S. Lee
    Referral may be required
    2075 Bayview Avenue, 
    Toronto, ON, CA 

    Douglas Lee practices practicing medicine in Toronto, Canada. Mr. Lee is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Heart Failure, Atrial Septal Defect (ASD), Heart Attack, Heart Bypass Surgery, and Aneurysm Repair.

    Advanced in Atrial Septal Defect (ASD)

    Sami M. Alnasser
    Advanced in Atrial Septal Defect (ASD)

    Sami M. Alnasser
    Referral may be required
    St. Michael's Hospital, 
    Toronto, ON, CA 

    Sami Alnasser practices practicing medicine in Toronto, Canada. Alnasser is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Atrial Septal Defect (ASD), Tricuspid Regurgitation, Mitral Stenosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Advanced in Atrial Septal Defect (ASD)

    Luciano A. Sposato
    Advanced in Atrial Septal Defect (ASD)

    Luciano A. Sposato
    Referral may be required
    London, ON, CA 

    Luciano Sposato practices practicing medicine in London, Canada. Mr. Sposato is rated as an Advanced expert by MediFind in the treatment of Atrial Septal Defect (ASD). He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Stroke, Transient Ischemic Attack (TIA), Atrial Fibrillation, Thrombectomy, and Stent Placement.

    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 163

    Last Updated: 06/30/2026

    What is the definition of Atrial Septal Defect (ASD)?

    Atrial septal defect (ASD) is a heart defect that is present at birth (congenital).

    As a baby develops in the womb, a wall (septum) forms that divides the upper chamber into a left and right atrium. When this wall does not form correctly, it can result in a defect that remains after birth. This is called an atrial septal defect, or ASD.

    When should I see an Atrial Septal Defect (ASD) doctor in Canada?

    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 Septal Defect (ASD) doctor in Canada?

    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 Atrial Septal Defect (ASD) doctor in Canada?

    You can find an Atrial Septal Defect (ASD) doctor in any of the 10 largest U.S. cities by clicking below:

    Atrial Septal Defect (ASD) doctor near New York, NY
    Atrial Septal Defect (ASD) doctor near Los Angeles, CA
    Atrial Septal Defect (ASD) doctor near Chicago, IL
    Atrial Septal Defect (ASD) doctor near Houston, TX
    Atrial Septal Defect (ASD) doctor near Phoenix, AZ
    Atrial Septal Defect (ASD) doctor near Philadelphia, PA
    Atrial Septal Defect (ASD) doctor near Atlanta, GA
    Atrial Septal Defect (ASD) doctor near Boston, MA
    Atrial Septal Defect (ASD) doctor near Dallas, TX
    Atrial Septal Defect (ASD) doctor near San Jose, CA

    How does MediFind rank Atrial Septal Defect (ASD) doctors in Canada?

    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 Septal Defect (ASD) doctors in Canada?

    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 Septal Defect (ASD) doctor in Canada?

    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 Septal Defect (ASD) doctor search results page. 

    Why is it important to get a second opinion from a different Atrial Septal Defect (ASD) 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 Septal Defect (ASD) doctor in Canada?

    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 Septal Defect (ASD) 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 Septal Defect (ASD) 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 Septal Defect (ASD) doctors in Canada?

    Look for the filter feature on the left side of the Atrial Septal Defect (ASD) 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 Septal Defect (ASD) doctor that offers video calls?

    Look for the filter feature on the left-side of the Atrial Septal Defect (ASD) 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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