Dr. Bruce Mazer – Allergist / Immunologist | Montréal, QC

Dr. Bruce Mazer is a dedicated Allergist / Immunologist, committed to providing expert care for patients of all ages with allergic or immunologic conditions. Practicing at Hôpital de Montréal pour Enfants (CUSM) in Montréal, QC, he is a trusted provider of specialized allergy and immunology care in the community. His practice adheres to the high standards set by the Collège des médecins du Québec (CMQ), ensuring that every patient receives safe, effective, and personalized treatment. As a seasoned specialist, Dr. Mazer focuses on accurately diagnosing and managing a broad spectrum of allergic and immunologic disorders, utilizing the latest diagnostic tools and evidence-based therapies to improve patient outcomes.

He holds a Medical Degree from a recognized institution, followed by extensive postgraduate training in Internal Medicine or Pediatrics, and a fellowship in Clinical Immunology and Allergy. With over 30 years of experience since beginning his practice in 1993, Dr. Mazer has developed a deep expertise in diagnosing and treating complex allergic and immune conditions. He has obtained the necessary certifications to practice as an Allergist / Immunologist in Quebec, demonstrating his commitment to ongoing professional development and excellence in patient care.

Dr. Mazer’s professional philosophy emphasizes the importance of accurate diagnosis, personalized management plans, and empowering patients through education about their conditions. He is dedicated to utilizing the latest scientific advancements and collaborative approaches to minimize symptoms, prevent severe reactions, and enhance quality of life. Fluent in French and English, he provides comprehensive allergy and immunology consultations and treatments in a compassionate, patient-centered environment in Montréal.

Dr. Bruce Mazer provides expert diagnosis and management for a wide range of allergic and immunologic conditions, including:

Immunodeficiency Disorders

Dr. Mazer manages can be primary (genetic) or secondary (acquired due to other conditions or treatments).

• Recurrent Infections (Evaluation for Underlying Immunodeficiency): May involve detailed immunological testing.
• Secondary Immunodeficiencies (e.g., due to HIV, Medications): Weakened immune function resulting from other diseases (like HIV/AIDS, certain cancers) or treatments (like chemotherapy, long-term corticosteroids, immunosuppressants).
• Primary Immunodeficiency Diseases (PIDD): Managed with immunoglobulin replacement, prophylactic antibiotics, and sometimes stem cell transplant.

Respiratory Allergies

Dr. Mazer manages includes allergic rhinitis (hay fever) and allergic asthma.

• Chronic Sinusitis (Allergy-Related): Persistent inflammation of the sinuses often linked to underlying allergies or nasal polyps.
• Allergic Rhinitis (Hay Fever): Nasal inflammation caused by an allergic reaction to airborne substances, leading to sneezing, runny nose, itchy eyes, and nasal congestion.
• Allergic Asthma: Allergen immunotherapy may be beneficial for some patients.

Insect Sting and Other Specific Allergies

Dr. Mazer manages allergic reactions to various specific triggers, including insect venoms, latex, or other less common allergens.

• Alpha-Gal Allergy (Red Meat Allergy): A delayed allergic reaction to galactose-alpha-1,3-galactose (alpha-gal), a carbohydrate found in mammalian meat (e.g., beef, pork, lamb).
• Latex Allergy: Requires strict avoidance of latex-containing products.
• Insect Sting Allergies (Bee, Wasp, Hornet, Yellow Jacket, Fire Ant): Allergic reactions to the venom of stinging insects, ranging from large local reactions to systemic anaphylaxis.

This list is not exhaustive. For a comprehensive evaluation of your condition, a consultation with Dr. Bruce Mazer is necessary.

• Allergen Immunotherapy (Allergy Shots or Sublingual Tablets/Drops): Sublingual immunotherapy (SLIT) tablets or drops for certain pollens and dust mites.
• Blood Tests for Allergy (e.g., Specific IgE testing): Laboratory blood tests to measure specific IgE antibodies to various allergens.
• Management of Secondary Immunodeficiencies: Focus on preventing and treating opportunistic infections.
• Oral Immunotherapy (OIT) for Food Allergies (Specialized Centres): A specialized treatment offered at select centres to desensitize individuals to specific food allergens by gradually ingesting increasing amounts of the allergen under medical supervision.
• Evaluation and Management of Primary Immunodeficiencies (PID): Collaboration with other specialists as needed.
• Food Allergy Diagnosis and Management: Development of food allergen avoidance plans and emergency action plans for anaphylaxis (epinephrine auto-injector prescription).

Note: This list provides an overview. Specific diagnostic tests and treatment plans are determined after a thorough consultation with Dr. Mazer.

All allergy and immunology services are provided in accordance with the standards of practice set by the Collège des médecins du Québec (CMQ) and relevant Canadian Society of Allergy and Clinical Immunology (CSACI) and relevant international guidelines. A referral from a physician is generally required for consultation.

Dr. Mazer practices primarily at the Hôpital de Montréal pour Enfants (Centre Universitaire de Santé McGill), located in the heart of Montréal's Notre-Dame-de-Grâce (NDG) Central neighborhood. The clinic is conveniently situated near the McGill University Gates and easily accessible via the Société de transport de Montréal (STM), including Métro and bus routes. The facility is well-equipped for allergy testing and consultations, providing a professional and welcoming environment for patients seeking allergy and immunology care. Parking is typically available nearby, with some accessible spots for patients with mobility needs. The clinic’s location offers a supportive setting for comprehensive allergy and immunology services, ensuring comfort and convenience for all patients.

What are some common conditions treated by Dr. Mazer?

Dr. Mazer treats a wide spectrum of allergic and immunologic conditions. Common ones include allergic rhinitis (hay fever), asthma, food allergies, drug allergies, insect sting allergies, atopic dermatitis (eczema), urticaria (hives), angioedema, and primary immunodeficiency diseases. specializing in the diagnosis, treatment, and management of allergies, asthma, and disorders of the immune system.

How does Dr. Mazer help manage food allergies?

Dr. Mazer provides comprehensive management for food allergies. This includes accurate diagnosis through testing (skin tests, blood tests, or oral food challenges), developing strict allergen avoidance strategies, educating on label reading, and creating an emergency action plan, including the prescription and training for epinephrine auto-injectors (e.g., EpiPen®). He may also discuss emerging therapies like oral immunotherapy if applicable. specializing in the diagnosis, treatment, and management of allergies, asthma, and disorders of the immune system.

Does Dr. Mazer offer allergen immunotherapy (allergy shots/drops)?

Yes, Allergist / Immunologists like Dr. Mazer often prescribe and manage allergen immunotherapy. This treatment, available as allergy shots (subcutaneous immunotherapy or SCIT) or under-the-tongue tablets/drops (sublingual immunotherapy or SLIT for certain allergens), helps your body build tolerance to specific allergens over time, reducing symptoms of hay fever, allergic asthma, or insect sting allergies. He can determine if immunotherapy is a suitable option for you. specializing in the diagnosis, treatment, and management of allergies, asthma, and disorders of the immune system.

What is involved in an evaluation for a possible immunodeficiency by Dr. Mazer?

If an immunodeficiency is suspected (e.g., due to recurrent, severe, or unusual infections), Dr. Mazer will conduct a thorough evaluation. This typically involves a detailed medical and family history, a physical examination, and specialized laboratory tests to assess different components of the immune system (like antibody levels, white blood cell counts and function). The goal is to identify any underlying immune system weakness and develop an appropriate management plan.

What does an Allergist / Immunologist like Dr. Mazer specialize in?

Dr. Mazer is an Allergist and Immunologist, a physician expert in the body's immune system and its reactions. He manages a wide range of conditions from common allergies and asthma to complex immune deficiency diseases and related systemic disorders. specializing in the diagnosis, treatment, and management of allergies, asthma, and disorders of the immune system.

Do I need a referral to see Dr. Mazer?

For most consultations with Dr. Mazer that are medically necessary and covered by Régie de l'assurance maladie du Québec (RAMQ), a referral from your family doctor is typically needed. This helps in coordinating your care effectively. Some specialized allergy clinics or services might have different referral processes, so it's always good to check with their office. The clinic's fax number for referrals is typically (514) 412-4390.

What types of allergy testing does Dr. Mazer perform?

Dr. Mazer may perform several types of allergy tests to help identify your specific triggers. The most common is skin prick testing, where small amounts of allergens are applied to the skin. Blood tests (like Specific IgE tests) may also be used. For contact dermatitis, patch testing might be done. Depending on the suspected allergy (e.g., food or drug), supervised oral challenges could be considered in a controlled setting. specializing in the diagnosis, treatment, and management of allergies, asthma, and disorders of the immune system.

Hôpital de Montréal pour Enfants (CUSM)
EM3.2232-1001 boul Décarie
Montréal, QC H4A 3J1

Office Phone: (514) 412-4470 | Office Fax: (514) 412-4390

Dr. Mazer is a licensed Allergist / Immunologist regulated by the Collège des médecins du Québec (CMQ) under the Medical Act in Quebec. A referral from a family physician or another specialist is generally required for a consultation with Dr. Mazer, particularly for services covered by Régie de l'assurance maladie du Québec (RAMQ).

Verify Dr. Mazer's registration with the Collège des médecins du Québec (CMQ): https://www.cmq.org/en/directory/physicians?number=87597