This dissemination and implementation project refines the intervention of RC1 HL099612 for real-world practice by 1) conducting a randomized controlled trial that compares the Patient Advocate Intervention (PAI) to currently practiced guideline-based usual care; 2) carrying out the intervention in a variety of primary care and asthma specialty practices; 3) extending the observation time to a year to test its sustainability; 4) assessing patient-centered outcomes including asthma control, quality of life, ED visits, and hospitalizations; 5) assessing mediators/moderators of the PAI-asthma outcome relationship; and 6) evaluating its cost-effectiveness.