The 20 Best Williams Syndrome Doctors Near Me in Toronto, ON

Find the Top Williams Syndrome Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 44 doctor with experience in Williams Syndrome near Toronto, ON. Of these, 40 are Experienced, 3 are Advanced and 1 are Elite.

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44 providers found
    Elite in Williams Syndrome

    Lucy R. Osborne
    Elite in Williams Syndrome

    Lucy R. Osborne
    Referral may be required
    1 King's College Circle, 
    Toronto, ON, CA 

    Lucy Osborne practices practicing medicine in Toronto, Canada. Ms. Osborne is rated as an Elite expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Williams Syndrome, Supravalvular Aortic Stenosis, West Syndrome, and Pulmonary Supravalvular Stenosis.

    Advanced in Williams Syndrome

    John S. Yeomans
    Advanced in Williams Syndrome

    John S. Yeomans
    Referral may be required
    Toronto, ON, CA 

    John Yeomans practices practicing medicine in Toronto, Canada. Mr. Yeomans is rated as an Advanced expert by MediFind in the treatment of Williams Syndrome. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Williams Syndrome and Schizophrenia.

    Advanced in Williams Syndrome

    Caroline Kinnear
    Advanced in Williams Syndrome

    Caroline Kinnear
    Referral may be required
    Toronto, ON, CA 

    Caroline Kinnear practices practicing medicine in Toronto, Canada. Ms. Kinnear is rated as an Advanced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Supravalvular Aortic Stenosis, Primary Immunodeficiency (PID), Williams Syndrome, and Pulmonary Supravalvular Stenosis.

    Learn about our expert tiers
    Advanced in Williams Syndrome

    Rosanna A. Weksberg
    Advanced in Williams Syndrome

    Rosanna A. Weksberg
    Referral may be required
    686 Bay Street, 
    Toronto, ON, CA 

    Rosanna Weksberg practices practicing medicine in Toronto, Canada. Ms. Weksberg is rated as an Advanced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 34 other conditions, according to our data. Her clinical expertise encompasses Hemihyperplasia, Macroglossia, Sotos Syndrome, and Beckwith-Wiedemann Syndrome.

    Experienced in Williams Syndrome

    Astrid Guttmann
    Experienced in Williams Syndrome

    Astrid Guttmann
    Referral may be required
    2075 Bayview Avenue, G106, 
    Toronto, ON, CA 

    Astrid Guttmann practices practicing medicine in Toronto, Canada. Ms. Guttmann is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Neonatal Abstinence Syndrome, Medium-Chain Acyl-CoA Dehydrogenase Deficiency, COVID-19, Severe Acute Respiratory Syndrome (SARS), and Gastrostomy.

    Experienced in Williams Syndrome

    Glenville D. Jones
    Experienced in Williams Syndrome

    Glenville D. Jones
    Referral may be required
    Kingston, ON, CA 

    Glenville Jones practices practicing medicine in Kingston, Canada. Mr. Jones is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Hypercalcemia, Milk-Alkali Syndrome, Hypervitaminosis D, and Malnutrition.

    Experienced in Williams Syndrome

    Marielle S. Deurloo
    Experienced in Williams Syndrome

    Marielle S. Deurloo
    Referral may be required
    1 King's College Circle, 
    Toronto, ON, CA 

    Marielle Deurloo practices practicing medicine in Toronto, Canada. Ms. Deurloo is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. Her clinical expertise encompasses Cerebral Hypoxia and Williams Syndrome.

    Experienced in Williams Syndrome

    Darci T. Butcher
    Experienced in Williams Syndrome

    Darci T. Butcher
    Referral may be required
    Hamilton, ON, CA 

    Darci Butcher practices practicing medicine in Hamilton, Canada. Ms. Butcher is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. Her clinical expertise encompasses CHARGE Syndrome, Williams Syndrome, Attention Deficit Hyperactivity Disorder (ADHD), and Acute Lymphoblastic Leukemia (ALL).

    Experienced in Williams Syndrome

    Zhong-ping G. Feng
    Experienced in Williams Syndrome

    Zhong-ping G. Feng
    Referral may be required
    1 King's College Circle, 
    Toronto, ON, CA 

    Zhong-ping Feng practices practicing medicine in Toronto, Canada. Feng is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. Their clinical expertise encompasses Cerebral Hypoxia, Glioblastoma, Stroke, and Astrocytoma.

    Experienced in Williams Syndrome

    Zhengping X. Jia
    Experienced in Williams Syndrome

    Zhengping X. Jia
    Referral may be required
    Toronto, ON, CA 

    Zhengping Jia practices practicing medicine in Toronto, Canada. Jia is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. Their clinical expertise encompasses Memory Loss, Autism Spectrum Disorder, Williams Syndrome, and Focal or Multifocal Malformations in Neuronal Migration.

    Experienced in Williams Syndrome

    Sandar Min
    Experienced in Williams Syndrome

    Sandar Min
    Referral may be required
    Toronto, ON, CA 

    Sandar Min practices practicing medicine in Toronto, Canada. Ms. Min is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Pulmonary Supravalvular Stenosis, Supravalvular Aortic Stenosis, Hypertrophic Cardiomyopathy (HCM), and Pulmonary Valve Stenosis.

    Experienced in Williams Syndrome

    Martin Kaufmann
    Experienced in Williams Syndrome

    Martin Kaufmann
    Referral may be required
    Kingston, ON, CA 

    Martin Kaufmann practices practicing medicine in Kingston, Canada. Mr. Kaufmann is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Milk-Alkali Syndrome, Hypercalcemia, Hypervitaminosis D, Nephrocalcinosis, and Mastectomy.

    Experienced in Williams Syndrome

    Anthony E. Lang
    Experienced in Williams Syndrome

    Anthony E. Lang
    Referral may be required
    60 Leonard Avenue, 
    Toronto, ON, CA 

    Anthony Lang practices practicing medicine in Toronto, Canada. Mr. Lang is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Movement Disorders, Parkinson's Disease, Progressive Supranuclear Palsy, Progressive Supranuclear Palsy Atypical, and Deep Brain Stimulation.

    Experienced in Williams Syndrome

    David A. Chiasson
    Experienced in Williams Syndrome

    David A. Chiasson
    Referral may be required
    Toronto, ON, CA 

    David Chiasson practices practicing medicine in Toronto, Canada. Mr. Chiasson is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. His clinical expertise encompasses Pulmonary Supravalvular Stenosis, Supravalvular Aortic Stenosis, Cri-Du-Chat Syndrome, Cat Eye Syndrome, and Heart Transplant.

    Experienced in Williams Syndrome

    Laura K. Cirelli
    Experienced in Williams Syndrome

    Laura K. Cirelli
    Referral may be required
    Scarborough, ON, CA 

    Laura Cirelli practices practicing medicine in Scarborough, Canada. Ms. Cirelli is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. Her clinical expertise encompasses Williams Syndrome.

    Experienced in Williams Syndrome

    Cheryl Cytrynbaum
    Experienced in Williams Syndrome

    Cheryl Cytrynbaum
    Referral may be required
    Toronto, ON, CA 

    Cheryl Cytrynbaum practices practicing medicine in Toronto, Canada. Ms. Cytrynbaum is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Sotos Syndrome, Hypoparathyroidism, Hemihyperplasia, and Weaver Syndrome.

    Experienced in Williams Syndrome

    Hiroshi Otsubo
    Experienced in Williams Syndrome

    Hiroshi Otsubo
    Referral may be required
    555 University Ave, 
    Toronto, ON, CA 

    Hiroshi Otsubo practices practicing medicine in Toronto, Canada. Mr. Otsubo is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Epilepsy, Seizures, Cortical Dysplasia, Endovascular Embolization, and Deep Brain Stimulation.

    Experienced in Williams Syndrome

    Marc S. Ekker
    Experienced in Williams Syndrome

    Marc S. Ekker
    Referral may be required
    Ottawa, ON, CA 

    Marc Ekker practices practicing medicine in Ottawa, Canada. Mr. Ekker is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. His clinical expertise encompasses Movement Disorders, Parkinson's Disease, Post-Traumatic Epilepsy, and Pyridoxine Deficiency.

    Experienced in Williams Syndrome

    Jeff Kobayashi
    Experienced in Williams Syndrome

    Jeff Kobayashi
    Referral may be required
    Toronto, ON, CA 

    Jeff Kobayashi practices practicing medicine in Toronto, Canada. Mr. Kobayashi is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. His clinical expertise encompasses West Syndrome, Familial Benign Copper Deficiency, Epilepsy, and Infantile Neutropenia.

    Experienced in Williams Syndrome

    Tamara T. Koopmann
    Experienced in Williams Syndrome

    Tamara T. Koopmann
    Referral may be required
    Room 1725D, 555 University Avenue, 
    Toronto, ON, CA 

    Tamara Koopmann practices practicing medicine in Toronto, Canada. Ms. Koopmann is rated as an Experienced expert by MediFind in the treatment of Williams Syndrome. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Atresia of Small Intestine, Paroxysmal Ventricular Fibrillation, His Bundle Tachycardia, and Ventricular Fibrillation.

    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 44

    Last Updated: 06/30/2026

    What is the definition of Williams Syndrome?

    Williams syndrome is a rare disorder that can lead to problems with development.

    When should I see a Williams Syndrome doctor near Toronto, ON?

    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 Williams Syndrome doctor near Toronto, ON?

    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 Williams Syndrome doctor near Toronto, ON?

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

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    How does MediFind rank Williams Syndrome doctors near Toronto, ON?

    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 Williams Syndrome doctors near Toronto, ON?

    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 Williams Syndrome doctor near Toronto, ON?

    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 Williams Syndrome doctor search results page. 

    Why is it important to get a second opinion from a different Williams Syndrome 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 Williams Syndrome doctor near Toronto, ON?

    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 Williams Syndrome 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 Williams Syndrome 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 Williams Syndrome doctors near Toronto, ON?

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

    Look for the filter feature on the left-side of the Williams Syndrome 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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