Comprehensive Geriatric Assessment (CGA) is the standard of care for specialized geriatric services for older adults living with frailty. Seniors Care Network led a rapid review of literature to explore the foundational elements, effectiveness, and outcomes of CGAs in the Ontario and Canadian context. The report also proposes some CGA implementation and optimization strategies, highlighting the role and unique value of various interprofessional team members in delivering holistic CGAs and care planning. Lastly, the authors highlight the importance of CGAs in the Frailty Management ecosystem, identifying CGA as an integral component of the Frailty Pathways.