Board-certified allergist-immunologist Mark Tucker, MD in Encinitas treats environmental, food, drug, and venom allergies through Scripps Clinic at the Santa Fe Drive campus near Encinitas Community Park. The practice's diagnostic scope spans skin-prick and intradermal testing, patch testing for contact dermatitis, and pulmonary function assessment for asthma — an allergy-and-skin interface that aligns with the dermatologic care at Coastal Skin & Eye Institute. Certification through the American Board of Allergy and Immunology (2007) followed an MD from the Uniformed Services University of the Health Sciences (1997) and fellowship at the San Antonio Uniformed Services Health Education Consortium, building clinical experience across both military and civilian settings including overseas practice in Japan. Published research on penicillin allergy evaluation without skin testing appears in the Journal of Allergy and Clinical Immunology: In Practice and Current Allergy and Asthma Reports, contributing to a national shift in beta-lactam allergy de-labeling protocols. Active membership in the American Academy of Allergy, Asthma & Immunology, the American College of Allergy, Asthma & Immunology, and the Western Society of Allergy, Asthma & Immunology anchors a referral network that includes naturopathic immune support at Bloom Natural Health. Highest-acuity services include graded oral drug challenges for confirmed beta-lactam hypersensitivity and multi-component venom immunotherapy protocols for Hymenoptera anaphylaxis.