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    Last Updated: 10/30/2025

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    MediFind found 78 doctor with experience in Tetralogy of Fallot near Ontario, CA. Of these, 45 are Experienced, 19 are Advanced, 8 are Distinguished and 6 are Elite.

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    78 providers found
      Elite in Tetralogy of Fallot

      Luc L. Mertens
      Elite in Tetralogy of Fallot

      Luc L. Mertens
      555 University Ave, 
      Toronto, ON, CA 

      Luc Mertens practices in Toronto, Canada. Mr. Mertens is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Tetralogy of Fallot, Atrioventricular Septal Defect, Coarctation of the Aorta, Heart Transplant, and Kidney Transplant.

      Elite in Tetralogy of Fallot

      Glen S. Van Arsdell
      Elite in Tetralogy of Fallot

      Glen S. Van Arsdell
      555 University Avenue, 
      Toronto, ON, CA 

      Glen Van Arsdell practices in Toronto, Canada. Mr. Van Arsdell is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Tetralogy of Fallot, Hypoplastic Left Heart Syndrome (HLHS), Ventricular Septal Defects, Heart Transplant, and Stent Placement.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Elite in Tetralogy of Fallot

      Mark K. Friedberg
      Elite in Tetralogy of Fallot

      Mark K. Friedberg
      555 University Avenue, 
      Toronto, ON, CA 

      Mark Friedberg practices in Toronto, Canada. Mr. Friedberg is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Tetralogy of Fallot, Congenital Heart Disease (CHD), Dilated Cardiomyopathy (DCM), Heart Transplant, and Lung Transplant.

      Learn about our expert tiers
      Elite in Tetralogy of Fallot

      Erwin N. Oechslin
      Elite in Tetralogy of Fallot

      Erwin N. Oechslin
      200 Elizabeth St, 
      Toronto, ON, CA 

      Erwin Oechslin practices in Toronto, Canada. Mr. Oechslin is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Congenital Heart Disease (CHD), Tetralogy of Fallot, Transposition of the Great Arteries, Cardiac Ablation, and Heart Transplant.

      Elite in Tetralogy of Fallot

      Brian W. Mccrindle
      Elite in Tetralogy of Fallot

      Brian W. Mccrindle
      555 University Ave, 
      Toronto, ON, CA 

      Brian Mccrindle practices in Toronto, Canada. Mr. Mccrindle is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Kawasaki Disease, Multisystem Inflammatory Syndrome in Children (MIS-C), Tetralogy of Fallot, Heart Transplant, and Thrombectomy.

      Elite in Tetralogy of Fallot

      David J. Barron
      Elite in Tetralogy of Fallot

      David J. Barron
      555 University Ave, M5G 1X8, 
      Toronto, ON, CA 

      David Barron practices in Toronto, Canada. Mr. Barron is rated as an Elite expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Tetralogy of Fallot, Hypoplastic Left Heart Syndrome (HLHS), Transposition of the Great Arteries, Heart Transplant, and Patent Foramen Ovale Repair.

      Distinguished in Tetralogy of Fallot

      Susan L. Roche
      Distinguished in Tetralogy of Fallot

      Susan L. Roche
      Toronto, ON, CA 

      Susan Roche practices in Toronto, Canada. Ms. Roche is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. Her top areas of expertise are Tetralogy of Fallot, Congenital Heart Disease (CHD), Double Discordia, Heart Transplant, and Cardiac Ablation.

      Distinguished in Tetralogy of Fallot

      Cedric Manlhiot
      Distinguished in Tetralogy of Fallot

      Cedric Manlhiot
      555 University Avenue, 
      Toronto, ON, CA 

      Cedric Manlhiot practices in Toronto, Canada. Mr. Manlhiot is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Kawasaki Disease, Tetralogy of Fallot, Multisystem Inflammatory Syndrome in Children (MIS-C), Heart Transplant, and Lung Transplant.

      Distinguished in Tetralogy of Fallot

      Gauri R. Karur
      Distinguished in Tetralogy of Fallot

      Gauri R. Karur
      585 University Avenue, M5G2 2N2, 
      Toronto, ON, CA 

      Gauri Karur practices in Toronto, Canada. Ms. Karur is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. Her top areas of expertise are Tetralogy of Fallot, Fabry Disease, Swyer-James Syndrome, Lung Transplant, and Heart Transplant.

      Distinguished in Tetralogy of Fallot

      Lee N. Benson
      Distinguished in Tetralogy of Fallot

      Lee N. Benson
      555 University Ave, 
      Toronto, ON, CA 

      Lee Benson practices in Toronto, Canada. Mr. Benson is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Coarctation of the Aorta, Atrial Septal Defect (ASD), Tetralogy of Fallot, Patent Foramen Ovale Repair, and Stent Placement.

      Distinguished in Tetralogy of Fallot

      Mike Seed
      Distinguished in Tetralogy of Fallot

      Mike Seed
      1 King's College Circle, 
      Toronto, ON, CA 

      Mike Seed practices in Toronto, Canada. Mr. Seed is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Congenital Heart Disease (CHD), Transposition of the Great Arteries, Tetralogy of Fallot, and Ebstein's Anomaly.

      Distinguished in Tetralogy of Fallot

      Krishnakumar M. Nair
      Distinguished in Tetralogy of Fallot

      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 Tetralogy of Fallot. Their top areas of expertise are Arrhythmias, Tetralogy of Fallot, Ventricular Tachycardia, Cardiac Ablation, and Heart Transplant.

      Distinguished in Tetralogy of Fallot

      Alvise Guariento
      Distinguished in Tetralogy of Fallot

      Alvise Guariento
      555 University Ave, M5G 1X8, 
      Toronto, ON, CA 

      Alvise Guariento practices in Toronto, Canada. Guariento is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. Their top areas of expertise are Total Anomalous Pulmonary Venous Return, Tetralogy of Fallot, Truncus Arteriosus, Heart Transplant, and Liver Embolization.

      Distinguished in Tetralogy of Fallot

      Anne S. Bassett
      Distinguished in Tetralogy of Fallot

      Anne S. Bassett
      33 Russell St, 
      Toronto, ON, CA 

      Anne Bassett practices in Toronto, Canada. Ms. Bassett is rated as a Distinguished expert by MediFind in the treatment of Tetralogy of Fallot. Her top areas of expertise are DiGeorge Syndrome, Hypoparathyroidism, Immune Defect due to Absence of Thymus, and Periventricular Heterotopia.

      Advanced in Tetralogy of Fallot

      Shi-joon J. Yoo
      Advanced in Tetralogy of Fallot

      Shi-joon J. Yoo
      555 University Avenue, 
      Toronto, ON, CA 

      Shi-joon Yoo practices in Toronto, Canada. Yoo is rated as an Advanced expert by MediFind in the treatment of Tetralogy of Fallot. Their top areas of expertise are Double Outlet Right Ventricle, Double Outlet Left Ventricle, Total Anomalous Pulmonary Venous Return, Heart Transplant, and Lung Transplant.

      Advanced in Tetralogy of Fallot

      Michael N. Gritti
      Advanced in Tetralogy of Fallot

      Michael N. Gritti
      Toronto, ON, CA 

      Michael Gritti practices in Toronto, Canada. Mr. Gritti is rated as an Advanced expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Tetralogy of Fallot, Congenital Heart Block, Pulmonary Valve Stenosis, and Transposition of the Great Arteries.

      Advanced in Tetralogy of Fallot

      Eugene Downar
      Advanced in Tetralogy of Fallot

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

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

      Advanced in Tetralogy of Fallot

      Osami Honjo
      Advanced in Tetralogy of Fallot

      Osami Honjo
      Toronto, ON, CA 

      Osami Honjo practices in Toronto, Canada. Honjo is rated as an Advanced expert by MediFind in the treatment of Tetralogy of Fallot. Their top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Pulmonary Atresia, Ventricular Septal Defects, Heart Transplant, and Thrombectomy.

      Advanced in Tetralogy of Fallot

      Miriam S. Reuter
      Advanced in Tetralogy of Fallot

      Miriam S. Reuter
      Toronto, ON, CA 

      Miriam Reuter practices in Toronto, Canada. Ms. Reuter is rated as an Advanced expert by MediFind in the treatment of Tetralogy of Fallot. Her top areas of expertise are Split Hand Foot Malformation, Tetralogy of Fallot, Angelman Syndrome, and Pontocerebellar Hypoplasia.

      Advanced in Tetralogy of Fallot

      Eric M. Horlick
      Advanced in Tetralogy of Fallot

      Eric M. Horlick
      200 Elizabeth Street, M5G 2C4, 
      Toronto, ON, CA 

      Eric Horlick practices in Toronto, Canada. Mr. Horlick is rated as an Advanced expert by MediFind in the treatment of Tetralogy of Fallot. His top areas of expertise are Atrial Septal Defect (ASD), Patent Foramen Ovale, Coarctation of the Aorta, Patent Foramen Ovale Repair, 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 78

      Last Updated: 10/30/2025

      What is the definition of Tetralogy of Fallot?

      Tetralogy of Fallot is a complex congenital heart defect characterized by a large ventricular septal defect (hole between the right and left ventricles), pulmonary stenosis (narrowing of the valve and artery that connect the heart with the lungs), an overriding aorta (the aorta - the artery that carries oxygen-rich blood to the body - is shifted over the right ventricle and ventricular septal defect, instead of coming out only from the left ventricle), and right ventricular hypertrophy (the muscle of the right ventricle is thicker than usual). Tetralogy of Fallot causes low oxygen levels in the blood, which can lead to cyanosis (a bluish-purple color to the skin). The cause of this condition is unknown.

      When should I see a Tetralogy of Fallot 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 a Tetralogy of Fallot 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 Tetralogy of Fallot doctor in Ontario, CA?

      You can find a Tetralogy of Fallot doctor in any of the 10 largest U.S. cities by clicking below:

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      How does MediFind rank Tetralogy of Fallot 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 Tetralogy of Fallot 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 a Tetralogy of Fallot 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 Tetralogy of Fallot doctor search results page. 

      Why is it important to get a second opinion from a different Tetralogy of Fallot 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 a Tetralogy of Fallot 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 Tetralogy of Fallot 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 Tetralogy of Fallot 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 Tetralogy of Fallot doctors in Ontario, CA?

      Look for the filter feature on the left side of the Tetralogy of Fallot 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 a Tetralogy of Fallot doctor that offers video calls?

      Look for the filter feature on the left-side of the Tetralogy of Fallot 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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