Harcharan Singh, MD

Harcharan Singh, MD, is a board-certified allergist and immunologist with more than 25 years of experience providing comprehensive, compassionate care to both adults and children (ages 6 and older). He is committed to a shared decision-making approach, working closely with each patient to develop individualized, effective treatment plans.

Dr. Singh earned his medical degree from Maulana Azad Medical College, University of Delhi, in New Delhi, India. He completed his residency in Pediatrics at North Shore University Hospital in Manhasset, New York, followed by a fellowship in Allergy and Immunology at the University at Buffalo in Buffalo, New York. He is board certified in Allergy and Immunology by the American Board of Allergy and Immunology.

In addition to his clinical practice, Dr. Singh serves as a Clinical Assistant Professor in the Department of Internal Medicine at Wright State University Boonshoft School of Medicine. He is an active member of the American Academy of Allergy, Asthma & Immunology and the American College of Allergy, Asthma & Immunology.

Dr. Singh specializes in the diagnosis and treatment of a broad range of allergic, immunologic, and respiratory conditions, including:

• Allergic and non-allergic rhinitis
• Chronic rhinosinusitis and nasal polyps
• Allergic conjunctivitis
• Asthma
• Food allergies and eosinophilic esophagitis
• Anaphylaxis, including stinging insect allergy
• Atopic dermatitis, urticaria, and angioedema
• Medication allergies, particularly penicillin allergy
• Antibody deficiencies requiring immunoglobulin replacement
• Preliminary evaluation of rare and complex disorders such as mastocytosis, eosinophilia, and allergic bronchopulmonary aspergillosis, with referral to specialized centers as needed

To support accurate diagnosis and optimal outcomes, Dr. Singh offers in-office testing and procedures, including environmental and food allergy testing, penicillin allergy testing, stinging insect allergy testing, spirometry, food challenges, and low-risk medication provocation challenges.

Treatment options may include allergen immunotherapy (allergy shots) for environmental and insect sting allergies, oral peanut desensitization, subcutaneous immunoglobulin replacement therapy, and advanced biologic therapies such as Xolair®, Dupixent®, Nucala®, Fasenra®, and Tezspire®, when clinically indicated.

Outside of medicine, Dr. Singh enjoys painting and hiking.