The Montana Asthma Control Program (MACP) has an 18-year track record of addressing asthma management and the indoor environmental determinants of health through an extensive network of partners and a robust home-visiting program. MACP conducts asthma interventions through a comprehensive and coordinated approach to increase efficiency while maximizing limited resources to achieve improved asthma health outcomes. This approach includes addressing standards and policies to improve access to asthma control services; increasing Montanans’ awareness of asthma triggers, disease self-management, and resources; working with health care providers to improve delivery and use of clinical services; and educating health care providers on guidelines-based asthma management, the impacts of indoor environmental determinants of health, and strategies linking clinical and community resources. One of MACP’s initiatives is the Montana Asthma Home Visiting Program, a free service that includes consultations from trained health care professionals, empowering individuals with uncontrolled asthma and their families to gain the knowledge and tools needed to self-manage the chronic condition. 

MACP has demonstrated significant improvements in both health outcomes and cost savings among high health care utilizers including:

• $111,800 in total cost savings (2011–2021) to Montana Medicaid from participants who completed all six program visits.
• 80% reduction in urgent care and emergency department visits for 817 children (between 2011–2025) and 108 adults (between 2020–2025) who completed the program.
• 66% reduction in workdays missed and a 53% reduction in schooldays missed due to asthma among participants completing the program.