The 20 Best Heart Attack Doctors Near Me in Ontario, CA

Find the Top Heart Attack Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 474 doctor with experience in Heart Attack near Ontario, CA. Of these, 403 are Experienced, 54 are Advanced and 17 are Distinguished.

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474 providers found
    Distinguished in Heart Attack

    Salim M. Yusuf
    Distinguished in Heart Attack

    Salim M. Yusuf
    30 Birge St, 
    Hamilton, ON, CA 

    Salim Yusuf practices practicing medicine in Hamilton, Canada. Mr. Yusuf is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Stroke, Heart Attack, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

    Distinguished in Heart Attack

    Peter Juni
    Distinguished in Heart Attack

    Peter Juni
    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 Heart Attack. He is also highly rated in 20 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 Heart Attack

    Sanjit S. Jolly
    Distinguished in Heart Attack

    Sanjit S. Jolly
    Hamilton, ON, CA 

    Sanjit Jolly practices practicing medicine in Hamilton, Canada. Mr. Jolly is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Acute Coronary Syndrome, Thrombectomy, and Percutaneous Coronary Intervention (PCI).

    Learn about our expert tiers
    Distinguished in Heart Attack

    Dennis T. Ko
    Distinguished in Heart Attack

    Dennis T. Ko
    2075 Bayview Avenue, 
    Toronto, ON, CA 

    Dennis Ko practices practicing medicine in Toronto, Canada. Mr. Ko is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Acute Coronary Syndrome, Atrial Fibrillation, Heart Bypass Surgery, and Percutaneous Coronary Intervention (PCI).

    Distinguished in Heart Attack

    Graham A. Wright
    Distinguished in Heart Attack

    Graham A. Wright
    Toronto, ON, CA 

    Graham Wright practices practicing medicine in Toronto, Canada. Mr. Wright is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Ventricular Tachycardia, Peripheral Artery Disease, Percutaneous Coronary Intervention (PCI), and Cardiac Ablation.

    Distinguished in Heart Attack

    Derek Y. So
    Distinguished in Heart Attack

    Derek Y. So
    Ottawa, ON, CA 

    Derek So practices practicing medicine in Ottawa, Canada. Mr. So is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Acute Coronary Syndrome, Spontaneous Coronary Artery Dissection (SCAD), Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery.

    Distinguished in Heart Attack

    Warren J. Cantor
    Distinguished in Heart Attack

    Warren J. Cantor
    641 Davis Drive, 
    Newmarket, ON, CA 

    Warren Cantor practices practicing medicine in Newmarket, Canada. Mr. Cantor is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Acute Coronary Syndrome, Percutaneous Coronary Intervention (PCI), and Angioplasty.

    Distinguished in Heart Attack

    Shahar Lavi
    Distinguished in Heart Attack

    Shahar Lavi
    St Joseph's Health Care London, 
    London, ON, CA 

    Shahar Lavi practices practicing medicine in London, Canada. Mr. Lavi is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Spontaneous Coronary Artery Dissection (SCAD), Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery.

    Distinguished in Heart Attack

    Michel R. Le May
    Distinguished in Heart Attack

    Michel R. Le May
    40 Ruskin Street, 
    Ottawa, ON, CA 

    Michel Le May practices practicing medicine in Ottawa, Canada. Mr. Le May is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Cardiac Arrest, Cardiogenic Shock, Percutaneous Coronary Intervention (PCI), and Heart Bypass Surgery.

    Distinguished in Heart Attack

    Vladimir Dzavik
    Distinguished in Heart Attack

    Vladimir Dzavik
    Toronto, ON, CA 

    Vladimir Dzavik practices practicing medicine in Toronto, Canada. Mr. Dzavik is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Cardiogenic Shock, Percutaneous Coronary Intervention (PCI), and Thrombectomy.

    Distinguished in Heart Attack

    Nilesh R. Ghugre
    Distinguished in Heart Attack

    Nilesh R. Ghugre
    Toronto, ON, CA 

    Nilesh Ghugre practices practicing medicine in Toronto, Canada. Mr. Ghugre is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Heart Attack, Myocarditis, Arrhythmias, Percutaneous Coronary Intervention (PCI), and Angioplasty.

    Distinguished in Heart Attack

    Marino X. Labinaz
    Distinguished in Heart Attack

    Marino X. Labinaz
    Ottawa, ON, CA 

    Marino Labinaz practices practicing medicine in Ottawa, Canada. Mr. Labinaz is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Cardiogenic Shock, Aortic Valve Stenosis, Percutaneous Coronary Intervention (PCI), and Aortic Valve Replacement.

    Distinguished in Heart Attack

    George A. Wells
    Distinguished in Heart Attack

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

    George Wells practices practicing medicine in Ottawa, Canada. Mr. Wells is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Fainting, Transient Ischemic Attack (TIA), Heart Attack, Cardiac Ablation, and Percutaneous Coronary Intervention (PCI).

    Distinguished in Heart Attack

    Harindra C. Wijeysundera
    Distinguished in Heart Attack

    Harindra C. Wijeysundera
    155 College St, 
    Toronto, ON, CA 

    Harindra Wijeysundera practices practicing medicine in Toronto, Canada. Mr. Wijeysundera is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Aortic Valve Stenosis, Coronary Heart Disease, Heart Attack, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

    Distinguished in Heart Attack

    Madhu K. Natarajan
    Distinguished in Heart Attack

    Madhu K. Natarajan
    Hamilton, ON, CA 

    Madhu Natarajan practices practicing medicine in Hamilton, Canada. Natarajan is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. They are also highly rated in 7 other conditions, according to our data. Their clinical expertise encompasses Heart Attack, Coronary Heart Disease, Aortic Valve Stenosis, Percutaneous Coronary Intervention (PCI), and Transcatheter Aortic Valve Replacement (TAVR).

    Distinguished in Heart Attack

    Alexander J. Dick
    Distinguished in Heart Attack

    Alexander J. Dick
    40 Ruskin Street, K1Y 4W7, 
    Ottawa, ON, CA 

    Alexander Dick practices practicing medicine in Ottawa, Canada. Mr. Dick is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Cardiac Arrest, Hypothermia, Percutaneous Coronary Intervention (PCI), and Angioplasty.

    Distinguished in Heart Attack

    Kim A. Connelly
    Distinguished in Heart Attack

    Kim A. Connelly
    1 King's College Circle, 
    Toronto, ON, CA 

    Kim Connelly practices practicing medicine in Toronto, Canada. Connelly is rated as a Distinguished expert by MediFind in the treatment of Heart Attack. They are also highly rated in 13 other conditions, according to our data. Their clinical expertise encompasses Type 2 Diabetes (T2D), Tricuspid Regurgitation, Heart Failure, Percutaneous Coronary Intervention (PCI), and Nephrectomy.

    Advanced in Heart Attack

    Jack V. Tu
    Advanced in Heart Attack

    Jack V. Tu
    27 King's College Circle, 
    Toronto, ON, CA 

    Jack Tu practices practicing medicine in Toronto, Canada. Mr. Tu is rated as an Advanced expert by MediFind in the treatment of Heart Attack. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Heart Failure, Coronary Heart Disease, Heart Attack, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

    Advanced in Heart Attack

    Andre Lamy
    Advanced in Heart Attack

    Andre Lamy
    DBCVSRI Room C1-112237 Barton Street, 
    Hamilton, ON, CA 

    Andre Lamy practices practicing medicine in Hamilton, Canada. Mr. Lamy is rated as an Advanced expert by MediFind in the treatment of Heart Attack. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Heart Attack, Coronary Heart Disease, Delirium, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

    Advanced in Heart Attack

    Bernard Zinman
    Advanced in Heart Attack

    Bernard Zinman
    Mount Sinai Hospital, 
    ON, CA 

    Bernard Zinman practices practicing medicine in Canada. Mr. Zinman is rated as an Advanced expert by MediFind in the treatment of Heart Attack. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Low Blood Sugar, Gestational Diabetes, and Maturity Onset Diabetes of the Young.

    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 474

    Last Updated: 04/28/2026

    What is the definition of Heart Attack?

    Most heart attacks are caused by a blood clot that blocks one of the coronary arteries. The coronary arteries bring blood and oxygen to the heart. If the blood flow is blocked, the heart is starved of oxygen and heart cells die.

    The medical term for this is myocardial infarction.

    When should I see a Heart Attack 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 Heart Attack 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 Heart Attack doctor in Ontario, CA?

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

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    How does MediFind rank Heart Attack 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 Heart Attack 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 Heart Attack 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 Heart Attack doctor search results page. 

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

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

    Look for the filter feature on the left-side of the Heart Attack 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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