Inclusion Criteria:  Patient and caregiver willing to participate as a dyad (patients will need a legally authorized representative to consent on their behalf given the requirement for at least moderate dementia, but patients who resists participating in the study will not be enrolled) U.S. residents (i.e., individuals accessing the LBDA from outside the U.S. will be excluded) Patient with a clinical diagnosis of DLB Patient with moderate severity dementia as assessed by the Quick Dementia Rating System (QDRS, with a score of >12 OR ≥2 in at least 3 domains suggestive of moderate dementia) Caregiver telephone interview for cognitive status (TICS) score of >31 to ensure that the caregiver is able to reliably complete study visits Patient participant expected to live at least 6 months (so that at least a baseline visit and 1 follow up visits is expected to be completed)  Exclusion Criteria:  Patient participant diagnosed with dementia of less than moderate severity Patient with dementia resists participation Non-U.S. residents Patient participant with dementia not expected to live at least 6 months Virtual cohort ONLY: Patient participant receives medical care from a LBDA Research Centers of Excellence clinic