Dr. Van Lancker

Jonathon Posthumus is an Allergy and Immunologist in Fredericksburg, Virginia. Dr. Posthumus is rated as a Distinguished provider by MediFind in the treatment of Selective Deficiency of IgA. His top areas of expertise are Sinusitis, Hives, Allergic Rhinitis, and Grass Allergy.

Talal Nsouli is an Allergy and Immunologist in Burke, Virginia. Dr. Nsouli is rated as a Distinguished provider by MediFind in the treatment of Selective Deficiency of IgA. His top areas of expertise are Allergic Conjunctivitis, Conjunctivitis (Pink Eye), Angioedema, and Allergic Rhinitis.

Dr. Antoine Azar is an assistant professor of medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include allergy and immunology, asthma, immunotherapy, sinusitis and drug reactions. Dr. Azar serves as the clinical director of the Division of Allergy and Clinical Immunology at Johns Hopkins. Dr. Azar earned his M.D. from the American University of Beirut. He completed residency programs at the University of Iowa Hospitals and Clinics and the American University of Beirut. He performed a fellowship in allergy and clinical immunology at the University of Iowa Hospitals and Clinics. Dr. Azar is rated as an Advanced provider by MediFind in the treatment of Selective Deficiency of IgA. His top areas of expertise are Primary Immunodeficiency (PID), Common Variable Immune Deficiency, Selective Deficiency of IgA, Adenoidectomy, and Endoscopy.