Door-Through-Door Companion Rideshare Technology for Individuals With Alzheimer's Disease and Related Dementias (AD/ADRD)

A pilot randomized controlled trial (Stage 1). By stratifying on levels of cognitive impairment, i.e., no cognitive impairment vs. have mild to moderate cognitive impairment/MCI or subjective cognitive decline/SCD, the research team will randomly assign 120 riders, who have scheduled medical appointments at partner practices of Onward, to one of two groups: Onward D2D service (intervention) vs. C2C rideshare (control). Intervention Group (D2D): Door-to-Door rideshare services with a trained companion driver. Control Group (C2C): Standard Curb-to-Curb rideshare services.