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    Last Updated: 10/30/2025

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    MediFind found 87 doctor with experience in Immune Defect due to Absence of Thymus near Ontario, CA. Of these, 72 are Experienced, 9 are Advanced, 5 are Distinguished and 1 are Elite.

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    87 providers found
      Elite in Immune Defect due to Absence of Thymus

      Anne S. Bassett
      Elite in Immune Defect due to Absence of Thymus

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

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

      Distinguished in Immune Defect due to Absence of Thymus

      Jacob S. Vorstman
      Distinguished in Immune Defect due to Absence of Thymus

      Jacob S. Vorstman
      Toronto, ON, CA 

      Jacob Vorstman practices in Toronto, Canada. Vorstman is rated as a Distinguished expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Their top areas of expertise are Immune Defect due to Absence of Thymus, DiGeorge Syndrome, Hypoparathyroidism, and Autism Spectrum Disorder.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Distinguished in Immune Defect due to Absence of Thymus

      Nancy J. Butcher
      Distinguished in Immune Defect due to Absence of Thymus

      Nancy J. Butcher
      Toronto, ON, CA 

      Nancy Butcher practices in Toronto, Canada. Ms. Butcher is rated as a Distinguished expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are DiGeorge Syndrome, Hypoparathyroidism, Immune Defect due to Absence of Thymus, Medium-Chain Acyl-CoA Dehydrogenase Deficiency, and Gastrostomy.

      Learn about our expert tiers
      Distinguished in Immune Defect due to Absence of Thymus

      Eva C. Chow
      Distinguished in Immune Defect due to Absence of Thymus

      Eva C. Chow
      250 College Street, M5T 1R8, 
      Toronto, ON, CA 

      Eva Chow practices in Toronto, Canada. Ms. Chow is rated as a Distinguished expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Hypoparathyroidism, DiGeorge Syndrome, Immune Defect due to Absence of Thymus, and ADULT Syndrome.

      Distinguished in Immune Defect due to Absence of Thymus

      Tracy Heung
      Distinguished in Immune Defect due to Absence of Thymus

      Tracy Heung
      Toronto, ON, CA 

      Tracy Heung practices in Toronto, Canada. Heung is rated as a Distinguished expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Their top areas of expertise are Hypoparathyroidism, DiGeorge Syndrome, Immune Defect due to Absence of Thymus, and Rommen Mueller Sybert Syndrome.

      Distinguished in Immune Defect due to Absence of Thymus

      Elemi J. Breetvelt
      Distinguished in Immune Defect due to Absence of Thymus

      Elemi J. Breetvelt
      Toronto, ON, CA 

      Elemi Breetvelt practices in Toronto, Canada. Breetvelt is rated as a Distinguished expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Their top areas of expertise are DiGeorge Syndrome, Hypoparathyroidism, Immune Defect due to Absence of Thymus, and Schizophrenia.

      Advanced in Immune Defect due to Absence of Thymus

      Lisa D. Palmer
      Advanced in Immune Defect due to Absence of Thymus

      Lisa D. Palmer
      Toronto, ON, CA 

      Lisa Palmer practices in Toronto, Canada. Ms. Palmer is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are DiGeorge Syndrome, Immune Defect due to Absence of Thymus, Hypoparathyroidism, and ADULT Syndrome.

      Advanced in Immune Defect due to Absence of Thymus

      Anthony E. Lang
      Advanced in Immune Defect due to Absence of Thymus

      Anthony E. Lang
      399 Bathurst Street, 
      Toronto, ON, CA 

      Anthony Lang practices in Toronto, Canada. Mr. Lang is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. His top areas of expertise are Movement Disorders, Parkinson's Disease, Progressive Supranuclear Palsy Atypical, Deep Brain Stimulation, and Appendectomy.

      Advanced in Immune Defect due to Absence of Thymus

      Gregory A. Costain
      Advanced in Immune Defect due to Absence of Thymus

      Gregory A. Costain
      Toronto, ON, CA 

      Gregory Costain practices in Toronto, Canada. Mr. Costain is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. His top areas of expertise are DiGeorge Syndrome, Hypoparathyroidism, Angelman Syndrome, and Epilepsy in Children.

      Advanced in Immune Defect due to Absence of Thymus

      Maria Corral
      Advanced in Immune Defect due to Absence of Thymus

      Maria Corral
      Toronto, ON, CA 

      Maria Corral practices in Toronto, Canada. Ms. Corral is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are DiGeorge Syndrome, Immune Defect due to Absence of Thymus, Hypoparathyroidism, and Rommen Mueller Sybert Syndrome.

      Advanced in Immune Defect due to Absence of Thymus

      Danielle M. Andrade
      Advanced in Immune Defect due to Absence of Thymus

      Danielle M. Andrade
      399 Bathurst Street, 
      Toronto, ON, CA 

      Danielle Andrade practices in Toronto, Canada. Ms. Andrade is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Myoclonic Epilepsy, Epilepsy with Myoclonic-Atonic Seizures, Epilepsy, Seizures, and Deep Brain Stimulation.

      Advanced in Immune Defect due to Absence of Thymus

      Sarah L. Malecki
      Advanced in Immune Defect due to Absence of Thymus

      Sarah L. Malecki
      Toronto, ON, CA 

      Sarah Malecki practices in Toronto, Canada. Ms. Malecki is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are DiGeorge Syndrome, Immune Defect due to Absence of Thymus, Hypoparathyroidism, and Rommen Mueller Sybert Syndrome.

      Advanced in Immune Defect due to Absence of Thymus

      Connie E. Marras
      Advanced in Immune Defect due to Absence of Thymus

      Connie E. Marras
      Toronto, ON, CA 

      Connie Marras practices in Toronto, Canada. Ms. Marras is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Parkinson's Disease, Movement Disorders, Supranuclear Ophthalmoplegia, Deep Brain Stimulation, and Appendectomy.

      Advanced in Immune Defect due to Absence of Thymus

      Christian R. Marshall
      Advanced in Immune Defect due to Absence of Thymus

      Christian R. Marshall
      Toronto, ON, CA 

      Christian Marshall practices in Toronto, Canada. Mr. Marshall is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. His top areas of expertise are Autism Spectrum Disorder, X-Linked Chondrodysplasia Punctata 2, Chondrodysplasia Punctata Syndrome, and DiGeorge Syndrome.

      Advanced in Immune Defect due to Absence of Thymus

      Candice K. Silversides
      Advanced in Immune Defect due to Absence of Thymus

      Candice K. Silversides
      200 Elizabeth St, 
      Toronto, ON, CA 

      Candice Silversides practices in Toronto, Canada. Ms. Silversides is rated as an Advanced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Subvalvular Aortic Stenosis, Transposition of the Great Arteries, DiGeorge Syndrome, and Double Discordia.

      Experienced in Immune Defect due to Absence of Thymus

      Lun A. Fung
      Experienced in Immune Defect due to Absence of Thymus

      Lun A. Fung
      Toronto, ON, CA 

      Lun Fung practices in Toronto, Canada. Fung is rated as an Experienced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Their top areas of expertise are DiGeorge Syndrome, Hypoparathyroidism, Immune Defect due to Absence of Thymus, and Huntington Disease.

      Experienced in Immune Defect due to Absence of Thymus

      Mario Masellis
      Experienced in Immune Defect due to Absence of Thymus

      Mario Masellis
      Toronto, ON, CA 

      Mario Masellis practices in Toronto, Canada. Mr. Masellis is rated as an Experienced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. His top areas of expertise are Frontotemporal Dementia, Dementia, Movement Disorders, and Parkinson's Disease.

      Experienced in Immune Defect due to Absence of Thymus

      Erwin N. Oechslin
      Experienced in Immune Defect due to Absence of Thymus

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

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

      Experienced in Immune Defect due to Absence of Thymus

      Daniele Merico
      Experienced in Immune Defect due to Absence of Thymus

      Daniele Merico
      Toronto, ON, CA 

      Daniele Merico practices in Toronto, Canada. Ms. Merico is rated as an Experienced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Autism Spectrum Disorder, Obsessive-Compulsive Disorder (OCD), Attention Deficit Hyperactivity Disorder (ADHD), and Schizophrenia.

      Experienced in Immune Defect due to Absence of Thymus

      Cheryl Cytrynbaum
      Experienced in Immune Defect due to Absence of Thymus

      Cheryl Cytrynbaum
      Toronto, ON, CA 

      Cheryl Cytrynbaum practices in Toronto, Canada. Ms. Cytrynbaum is rated as an Experienced expert by MediFind in the treatment of Immune Defect due to Absence of Thymus. Her top areas of expertise are Sotos Syndrome, Hypoparathyroidism, Hemihyperplasia, and Weaver Syndrome.

      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 87

      Last Updated: 10/30/2025

      When should I see an Immune Defect due to Absence of Thymus 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 an Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus doctor in Ontario, CA?

      You can find an Immune Defect due to Absence of Thymus doctor in any of the 10 largest U.S. cities by clicking below:

      Immune Defect due to Absence of Thymus doctor near New York, NY
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      Immune Defect due to Absence of Thymus doctor near Philadelphia, PA
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      Immune Defect due to Absence of Thymus doctor near Boston, MA
      Immune Defect due to Absence of Thymus doctor near Dallas, TX
      Immune Defect due to Absence of Thymus doctor near San Jose, CA

      How does MediFind rank Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus 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 an Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus doctor search results page. 

      Why is it important to get a second opinion from a different Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus doctors in Ontario, CA?

      Look for the filter feature on the left side of the Immune Defect due to Absence of Thymus 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 Immune Defect due to Absence of Thymus doctor that offers video calls?

      Look for the filter feature on the left-side of the Immune Defect due to Absence of Thymus 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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