Objective: To longitudinally examine the impact of public family support on appraisals of caregiving burden, satisfaction, and self-efficacy among families of adults with disabilities. Background: Little research exists on family support and the family experience within Medicaid managed care across disabilities and longitudinally. Method: Illinois Medicaid managed care enrollees with disabilities and their family members completed surveys over 2 years. Only families and enrollees who lived together were included (N = 182 pairs).