Founded in 1982 by UC San Diego pathologist Dr. George G. Glenner — whose research first identified the beta-amyloid protein in Alzheimer's disease — and his wife Joy, this 501(c)(3) nonprofit operates one of the earliest adult day health programs in the United States for people with Alzheimer's and related dementias. The Hillcrest cottage-style center on Fourth Avenue maintains a 5:1 participant-to-direct-care-staff ratio with an RN on site and runs the proprietary Bygone Days Productions S.P.I.C.E. activity framework covering Social, Physical, Intellectual, Creative, and Educational engagement. Behavioral-health co-management for participants with comorbid depression, psychosis, or agitation coordinates through Advanced Psychiatry Associates when families need psychiatric medication reviews tied to dementia care. The GLENNERCARE virtual dementia-care navigation program (NPI 1699378612) extends support for enrolled families outside center sessions in English, Spanish, and Tagalog. Evening continuity for enrolled families extends through home-care partners such as Home Care Providers to cover the overnight gap after each day-center session ends. Caregiver education offers BRN and RCFE continuing education units, Memory Café meetups, professionally facilitated support groups with respite care included, and workforce training built under a legacy partnership with the UC San Diego School of Medicine. The most complex enrollments coordinate dementia-specific day programming with in-home care, caregiver crisis intervention, and hospice referrals as disease progression moves families toward end-of-life planning.