Please let us know if you have feedbackDive Brief:Aetna is expanding a program that integrates its nurses into hospitals to prevent avoidable readmissions for its Medicare Advantage members. The CVS-owned insurer is on track to scale the program, called Aetna Clinical Collaboration, to 10 hospitals by the end of the year. Once ACC is fully implemented at scale, Aetna projects the program will reduce year-over-year 30-day readmissions and hospital length of stay by 5%, the insurer said. For patients, the programs could help prevent avoidable health problems after they’re discharged from a hospital. However, there’s a problem when insurers get overly aggressive, which may prevent patients from receiving the care they need.