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    Last Updated: 01/09/2026

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    MediFind found 48 doctor with experience in Hypoplastic Left Heart Syndrome (HLHS) near Ontario, CA. Of these, 29 are Experienced, 9 are Advanced, 6 are Distinguished and 4 are Elite.

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    48 providers found
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      Osami Honjo
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      Osami Honjo
      Toronto, ON, CA 

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

      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      Glen S. Van Arsdell
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      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 Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Tetralogy of Fallot, Hypoplastic Left Heart Syndrome (HLHS), Ventricular Septal Defects, Heart Transplant, and Stent Placement.

      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      Luc L. Mertens
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      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 Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Tetralogy of Fallot, Atrioventricular Septal Defect, Hypoplastic Left Heart Syndrome (HLHS), Heart Transplant, and Kidney Transplant.

      Learn about our expert tiers
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      David J. Barron
      Elite in Hypoplastic Left Heart Syndrome (HLHS)

      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 Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Pulmonary Atresia, Tetralogy of Fallot, Heart Transplant, and Patent Foramen Ovale Repair.

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Brian W. Mccrindle
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

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

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

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Edgar T. Jaeggi
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Edgar T. Jaeggi
      555 University Avenue, 
      Toronto, ON, CA 

      Edgar Jaeggi practices in Toronto, Canada. Mr. Jaeggi is rated as a Distinguished expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Ebstein's Anomaly, Congenital Heart Block, Heart Block, Hypoplastic Left Heart Syndrome (HLHS), and Septoplasty.

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Christoph Haller
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Christoph Haller
      Toronto, ON, CA 

      Christoph Haller practices in Toronto, Canada. Mr. Haller is rated as a Distinguished expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Supravalvular Aortic Stenosis, Coarctation of the Aorta, Transposition of the Great Arteries, and Heart Transplant.

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Mark K. Friedberg
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

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

      Mark Friedberg practices in Toronto, Canada. Mr. Friedberg is rated as a Distinguished expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Tetralogy of Fallot, Hypoplastic Left Heart Syndrome (HLHS), Congenital Heart Disease (CHD), Heart Transplant, and Lung Transplant.

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Rajiv R. Chaturvedi
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Rajiv R. Chaturvedi
      Toronto, ON, CA 

      Rajiv Chaturvedi practices in Toronto, Canada. Mr. Chaturvedi is rated as a Distinguished expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Tetralogy of Fallot, Coarctation of the Aorta, Septoplasty, and Stent Placement.

      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      Mike Seed
      Distinguished in Hypoplastic Left Heart Syndrome (HLHS)

      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 Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Congenital Heart Disease (CHD), Transposition of the Great Arteries, Tetralogy of Fallot, and Ebstein's Anomaly.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Alejandro A. Floh
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Alejandro A. Floh
      University Ave, 
      Toronto, ON, CA 

      Alejandro Floh practices in Toronto, Canada. Mr. Floh is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Congenital Hyperinsulinism, Trisomy 2 Mosaicism, Thrombectomy, and Heart Transplant.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Shi-joon J. Yoo
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      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 Hypoplastic Left Heart Syndrome (HLHS). Their top areas of expertise are Double Outlet Left Ventricle, Double Outlet Right Ventricle, Tetralogy of Fallot, Heart Transplant, and Liver Transplant.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Andras Lasso
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Andras Lasso
      Kingston, ON, CA 

      Andras Lasso practices in Kingston, Canada. Mr. Lasso is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Partial Atrioventricular Canal, Hypoplastic Left Heart Syndrome (HLHS), Mitral Valve Regurgitation, Tetralogy of Fallot, and Mastectomy.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Martijn G. Slieker
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Martijn G. Slieker
      555 University Ave, 
      Toronto, ON, CA 

      Martijn Slieker practices in Toronto, Canada. Mr. Slieker is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Coarctation of the Aorta, Hypoplastic Left Heart Syndrome (HLHS), Congenital Mitral Stenosis, Congenital Heart Disease (CHD), and Angioplasty.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Cedric Manlhiot
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Cedric Manlhiot
      555 University Avenue, 
      Toronto, ON, CA 

      Cedric Manlhiot practices in Toronto, Canada. Mr. Manlhiot is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Kawasaki Disease, Congenital Heart Disease (CHD), Multisystem Inflammatory Syndrome in Children (MIS-C), Heart Transplant, and Lung Transplant.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Arezou A. Saedi
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Arezou A. Saedi
      Toronto, ON, CA 

      Arezou Saedi practices in Toronto, Canada. Saedi is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). Their top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Pulmonary Atresia with Ventricular Septal Defect, Urinary Tract Infection (UTI), and Aortopulmonary Window.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Christopher Z. Lam
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Christopher Z. Lam
      Toronto, ON, CA 

      Christopher Lam practices in Toronto, Canada. Mr. Lam is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Congenital Pulmonary Lymphangiectasia, Tetralogy of Fallot, Hypoplastic Left Heart Syndrome (HLHS), Heterotaxy Syndrome, and Oophorectomy.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      David A. Chitayat
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      David A. Chitayat

      Mount Sinai Hospital

      ON, CA 

      David Chitayat practices in Canada. Mr. Chitayat is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Fetal Akinesia Sequence, Symphalangism Distal, Arthrogryposis Multiplex Congenita, and Congenital Contractures.

      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Heynric B. Grotenhuis
      Advanced in Hypoplastic Left Heart Syndrome (HLHS)

      Heynric B. Grotenhuis
      555 University Avenue, 
      Toronto, ON, CA 

      Heynric Grotenhuis practices in Toronto, Canada. Grotenhuis is rated as an Advanced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). Their top areas of expertise are Coarctation of the Aorta, Interrupted Aortic Arch, Transposition of the Great Arteries, and Hypoplastic Left Heart Syndrome (HLHS).

      Experienced in Hypoplastic Left Heart Syndrome (HLHS)

      Greg A. Ryan
      Experienced in Hypoplastic Left Heart Syndrome (HLHS)

      Greg A. Ryan
      Mount Sinai Hospital, 
      ON, CA 

      Greg Ryan practices in Canada. Mr. Ryan is rated as an Experienced expert by MediFind in the treatment of Hypoplastic Left Heart Syndrome (HLHS). His top areas of expertise are Twin-To-Twin Transfusion Syndrome, Hemolytic Disease of the Newborn, Hydrops Fetalis, Endoscopy, and Septoplasty.

      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 48

      Last Updated: 01/09/2026

      What is the definition of Hypoplastic Left Heart Syndrome (HLHS)?

      Hypoplastic left heart syndrome occurs when parts of the left side of the heart (mitral valve, left ventricle, aortic valve, and aorta) do not develop completely. The condition is present at birth (congenital).

      When should I see a Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) doctor in Ontario, CA?

      You can find a Hypoplastic Left Heart Syndrome (HLHS) doctor in any of the 10 largest U.S. cities by clicking below:

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      Hypoplastic Left Heart Syndrome (HLHS) doctor near Phoenix, AZ
      Hypoplastic Left Heart Syndrome (HLHS) doctor near Philadelphia, PA
      Hypoplastic Left Heart Syndrome (HLHS) doctor near Atlanta, GA
      Hypoplastic Left Heart Syndrome (HLHS) doctor near Boston, MA
      Hypoplastic Left Heart Syndrome (HLHS) doctor near Dallas, TX
      Hypoplastic Left Heart Syndrome (HLHS) doctor near San Jose, CA

      How does MediFind rank Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) doctor search results page. 

      Why is it important to get a second opinion from a different Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) doctors in Ontario, CA?

      Look for the filter feature on the left side of the Hypoplastic Left Heart Syndrome (HLHS) 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 Hypoplastic Left Heart Syndrome (HLHS) doctor that offers video calls?

      Look for the filter feature on the left-side of the Hypoplastic Left Heart Syndrome (HLHS) 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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