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Antoine Azar, M.D.
- Interim Division Director, Division of Allergy and Clinical Immunology
- Clinical Director, Division of Allergy and Clinical Immunology
- Associate Professor of Medicine
Our Team
On This Page
The faculty and staff of the Johns Hopkins Division of Allergy & Clinical Immunology are devoting their careers to research, diagnosis and treatment of allergic and hypersensitivity problems, asthma, and other allergic and immunologic diseases. Highly regarded experts in allergy-immunology, most faculty have special individual interests, which focus their practice on particular disorders. What this means for our patients is that they can count on the division’s care providers not only for their depth of medical knowledge, but also for being cared for in a rich scientific environment where innovative treatments and diagnostic procedures are being evaluated. This scientific grounding is coupled with a compassionate approach to providing needed care efficiently and co-operatively.
The Dermatology, Allergy and Clinical Immunology (DACI) Reference Laboratory, located in the Asthma & Allergy Center, is a full-service laboratory that provides specialized diagnostic measurements to allergists, dermatologists, and clinical immunologists.
Leadership
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Santiago Alvarez Arango, M.D.
Expertise: Allergy and Immunology, Clinical Pharmacology, Drug Allergy, Immunology, Internal Medicine
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Antoine Azar, M.D.
Expertise: Allergic Rhinitis, Allergy and Immunology, Asthma, Chronic Sinusitis, Drug Allergy
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Melanie Claire Dispenza, M.D., Ph.D.
Expertise: Allergy and Immunology, Anaphylaxis, Immunology, Systemic Mastocytosis
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Sarbjit Singh Saini, M.D.
Expertise: Allergic Diseases, Allergy and Immunology, Asthma, Atopic Dermatitis, Urticaria and Angioedema
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Jody Robert Tversky, M.D.
Expertise: Allergic Rhinitis, Allergy and Immunology, Anaphylaxis, Asthma, Immunotherapy
Kristin Brown
Nurse Practitioner

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Corinne Savides Happel, M.D.
Expertise: Allergic Contact Dermatitis, Allergic Rashes, Allergy and Immunology, Atopic Dermatitis
Katherine Hise

Alpa Jani

Miya Paterniti

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Li Gao, M.D., Ph.D.
Research Interests: Functional genomics, epigenetics and molecular genetics of complex human allergic and cardiopulmonary diseases, with a focus on translational studies applying fundamental genetic insight into the clinical setting.
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Robert G. Hamilton, Ph.D., M.S.
Research Interests: Medical product and environmental allergen testing, Diagnostic allergy testing, Natural rubber latex allergy, Humoral (antibody) immune responses in allergic and infectious disease, Immunogenicity and allergenicity of new drugs
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Rasika Ann Mathias, Sc.D.
Research Interests: Genetic epidemiology with emphasis on cardiovascular/asthma/lung disease and other chronic disease processes.
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John Thomas Schroeder, Ph.D.
Research Interests: Mechanisms regulating cytokine/mediator release by IgE receptor-bearing cells, Innate vs. adaptive immunity in regulating cellular responses in IgE receptor positive cells
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Bradley J. Undem, Ph.D.
Research Interests: The peripheral nervous system in healthy and inflamed tissues, Vagal Sensory Neurobiology, Nerve inflammation interactions

Division of Allergy & Clinical Immunology Faculty, Fellows & Staff
Clinical Staff
PATIENT CHECK IN/OUT OFFICE
- Antonio L. Hyman, Clinical Manager
- Tammy Fallis, Patient Services Coordinator
- Robert Spriggs, Patient Service Coordinator
- Malik Echols, Medical Assistant
- Christina Proctor, Medical Assistant
- Melanie Prodey, Clinical Nurse
- Sarah Ramirez, Clinical Nurse
Administrative Core
- Andrew Byrd, Associate Administrator
- Katie Sheldon, Administrative Specialist
- Cate Weaver, Administrative Program Coordinator
You can also reach us by using the following information below.
We cannot answer specific patient-related questions on this web site. You can call us at 410-550-2300 to make an appointment to see one of our physicians, or you can have your physician call us to recommend possible specialists for you and your physician to consider.