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Immunology

Immunology Care at National Jewish HealthWe provide comprehensive diagnostic and therapeutic services to patients with a broad range of allergic and immunologic disorders, such as food allergy, asthma and immunodeficiency. We are a specialized referral center, and our patients are typically referred by their local doctors/specialists because of difficulty in diagnosing and/or treating the disease.


Our nationally-recognized allergy and immunology specialists perform unique consultative services to provide comprehensive clinical care to our patients. These consultative services include pulmonary rehabilitation, psychosocial medicine, occupational medicine, speech therapy for vocal cord dysfunction, sleep studies, interstitial lung disease and nutrition.

The divisional basic science and clinical research labs provide a unique opportunity to conduct molecular diagnostic studies on patient samples that aid diagnosis as well as management of a broad-spectrum of allergic, immunologic and respiratory illnesses.

Learn about our Allergy Treatment Programs.


Our Specialists

  • Rafeul Alam

    Rafeul Alam, MD, PhD

  • Jordan Bull

    Jordan Bull, PA-C

  • Flavia Cecilia Lega Hoyte

    Flavia Cecilia Lega Hoyte, MD

  • Kanao Otsu

    Kanao Otsu, MD, MPH

Clinical Trials


For more than 100 years, National Jewish Health has been committed to finding new treatments and cures for diseases. Search our clinical trials.

Lillian Downs

Searching For Answers

The second time Lillian Downs got COVID-19, she came to National Jewish Health. When infectious disease expert Jared Eddy, MD, saw Lillian before an antibody infusion, he realized that she needed a more extensive evaluation.

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