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    Last Updated: 01/09/2026

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    MediFind found 37 doctor with experience in Chronic Spontaneous Urticaria (CSU) near Ontario, CA. Of these, 28 are Experienced, 8 are Advanced and 1 are Elite.

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    37 providers found
      Elite in Chronic Spontaneous Urticaria (CSU)

      Gordon L. Sussman
      Elite in Chronic Spontaneous Urticaria (CSU)

      Gordon L. Sussman
      Toronto, ON, CA 

      Gordon Sussman practices in Toronto, Canada. Mr. Sussman is rated as an Elite expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Hives, Angioedema, and Asthma.

      Charles W. Lynde
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Charles W. Lynde
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Charles W. Lynde
      Markham, ON, CA 

      Charles Lynde practices in Markham, Canada. Mr. Lynde is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Psoriasis, Plaque Psoriasis, Atopic Dermatitis, and Acne.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Armin Abadeh
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Armin Abadeh
      Toronto, ON, CA 

      Armin Abadeh practices in Toronto, Canada. Mr. Abadeh is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Hives, Li-Fraumeni Syndrome, and IgG4-Related Disease.

      Learn about our expert tiers
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Hermenio C. Lima
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Hermenio C. Lima
      Hamilton, ON, CA 

      Hermenio Lima practices in Hamilton, Canada. Lima is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). Their top areas of expertise are Atopic Dermatitis, Chronic Spontaneous Urticaria (CSU), Hives, and Asthma.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Susan Waserman
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Susan Waserman
      Hamilton, ON, CA 

      Susan Waserman practices in Hamilton, Canada. Ms. Waserman is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). Her top areas of expertise are Anaphylaxis, Allergic Rhinitis, Asthma, and Hives.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Melinda J. Gooderham
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Melinda J. Gooderham
      Peterborough, ON, CA 

      Melinda Gooderham practices in Peterborough, Canada. Ms. Gooderham is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). Her top areas of expertise are Plaque Psoriasis, Atopic Dermatitis, Psoriasis, and Pustular Psoriasis.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Derek K. Chu
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Derek K. Chu
      Hamilton, ON, CA 

      Derek Chu practices in Hamilton, Canada. Mr. Chu is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Anaphylaxis, Asthma, Atopic Dermatitis, and Food Allergy.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Gerasimos N. Konstantinou
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Gerasimos N. Konstantinou
      Toronto, ON, CA 

      Gerasimos Konstantinou practices in Toronto, Canada. Mr. Konstantinou is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Primary Familial Brain Calcification, Hives, and Schizophrenia.

      Advanced in Chronic Spontaneous Urticaria (CSU)

      Stephen D. Betschel
      Advanced in Chronic Spontaneous Urticaria (CSU)

      Stephen D. Betschel
      Toronto, ON, CA 

      Stephen Betschel practices in Toronto, Canada. Mr. Betschel is rated as an Advanced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Angioedema, Hereditary Angioedema, Hives, and Common Variable Immune Deficiency.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      William H. Yang
      Experienced in Chronic Spontaneous Urticaria (CSU)

      William H. Yang
      Ottawa, ON, CA 

      William Yang practices in Ottawa, Canada. Mr. Yang is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Angioedema, Hereditary Angioedema, Hives, and Asthma.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Daniel G. Rayner
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Daniel G. Rayner
      London, ON, CA 

      Daniel Rayner practices in London, Canada. Mr. Rayner is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Asthma, Hives, Chronic Spontaneous Urticaria (CSU), Hidradenitis Suppurativa, and Heart Transplant.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Kednapa Thavorn
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Kednapa Thavorn
      Department Of Otolaryngology Head And Neck Surgery, 
      Ottawa, ON, CA 

      Kednapa Thavorn practices in Ottawa, Canada. Thavorn is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). Their top areas of expertise are Sepsis, Secondary Peritonitis, Peritonitis, Osteotomy, and Mastectomy.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Xavier Montalban
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Xavier Montalban
      St, 
      Toronto, ON, CA 

      Xavier Montalban practices in Toronto, Canada. Mr. Montalban is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Multiple Sclerosis (MS), Relapsing Multiple Sclerosis (RMS), CACH Syndrome, and Optic Neuritis.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Jason K. Lee
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Jason K. Lee
      Toronto, ON, CA 

      Jason Lee practices in Toronto, Canada. Mr. Lee is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Giant Papillary Conjunctivitis, Eosinophilic Asthma, Asthma, and Hives.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Paul Oykhman
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Paul Oykhman
      Hamilton, ON, CA 

      Paul Oykhman practices in Hamilton, Canada. Mr. Oykhman is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Hives, Chronic Spontaneous Urticaria (CSU), Asthma, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Jeffrey Chan
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Jeffrey Chan
      Newmarket, ON, CA 

      Jeffrey Chan practices in Newmarket, Canada. Mr. Chan is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Hives and Chronic Spontaneous Urticaria (CSU).

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Bahar Bahrani
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Bahar Bahrani
      Toronto, ON, CA 

      Bahar Bahrani practices in Toronto, Canada. Ms. Bahrani is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). Her top areas of expertise are Anorexia, Scurvy, Hives, and Chronic Spontaneous Urticaria (CSU).

      Experienced in Chronic Spontaneous Urticaria (CSU)

      David Gou
      Experienced in Chronic Spontaneous Urticaria (CSU)

      David Gou
      Hamilton, ON, CA 

      David Gou practices in Hamilton, Canada. Mr. Gou is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Endophthalmitis, Hives, and Cutaneous Lupus Erythematosus (CLE).

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Alexandro L. Chu
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Alexandro L. Chu
      Hamilton, ON, CA 

      Alexandro Chu practices in Hamilton, Canada. Mr. Chu is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Hives, Grass Allergy, Atopic Dermatitis, and Asthma.

      Experienced in Chronic Spontaneous Urticaria (CSU)

      Abrahim Abduelmula
      Experienced in Chronic Spontaneous Urticaria (CSU)

      Abrahim Abduelmula
      Toronto, ON, CA 

      Abrahim Abduelmula practices in Toronto, Canada. Mr. Abduelmula is rated as an Experienced expert by MediFind in the treatment of Chronic Spontaneous Urticaria (CSU). His top areas of expertise are Plaque Psoriasis, Psoriasis, Localized Scleroderma, and Prurigo Nodularis.

      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 37

      Last Updated: 01/09/2026

      When should I see a Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) doctor in Ontario, CA?

      You can find a Chronic Spontaneous Urticaria (CSU) doctor in any of the 10 largest U.S. cities by clicking below:

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      How does MediFind rank Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) doctor search results page. 

      Why is it important to get a second opinion from a different Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) doctors in Ontario, CA?

      Look for the filter feature on the left side of the Chronic Spontaneous Urticaria (CSU) 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 Chronic Spontaneous Urticaria (CSU) doctor that offers video calls?

      Look for the filter feature on the left-side of the Chronic Spontaneous Urticaria (CSU) 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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