Health Navigator predicts and prevents avoidable urgent and emergency care. We do this by combining the power of predictive AI with nurse-led patient health coaching and behaviour change. Our intervention delivers up to 59% decrease in unplanned admissions, 52% reduction in A&E attendances and close to 40% reduction in total hospital costs for patients that receive our intervention, an ROI of 250% or more for CCGs. Our impact is evidenced through a 3,000 patient multicentre randomised control trial in collaboration with the Nuffield Trust and NIHR. Health Navigator cares for some 3,000 patients across 7 NHS Acute sites and 9 collaborating CCGs.