Functional, HRQoL, psychological, and care process outcomes (Specific Aim 1) The investigators will assess the intervention's impact on multiple functional and psychological outcomes, including physical function (using the Duke Activity Status Index (primary study outcome), generic HRQoL (Medical Outcomes Study SF-12), disease-specific HRQoL (Kansas City Cardiomyopathy Questionnaire, Seattle Angina Questionnaire), depression (SCL-20), anxiety (Hospital Anxiety and Depression Scale - anxiety subscale), optimism (Life Orientation Test - Revised), and participant satisfaction.