Specialist in adult and pediatric Allergy, Asthma, & Immunology; Diplomate of the American Board of Allergy & Immunology (certified in 1993, recertified in 2003, and recertified in 2013); Diplomate of the American Board of Internal Medicine (certified in 1990, recertified in 2003, and recertified in 2013); Fellow of the American College of Allergy, Asthma, and Immunology; Fellow of the American Academy of Allergy, Asthma, and Immunology; Clinical Professor, University of California, San Francisco; President, Allegy Association of Nornthern California (2002); Board Member, Allergy, Asthma, and Immunology Foundation of Northern California (2004-2011).