Mount Zion Care Group is a compassionate care organization overseeing Optimum Care SLS and Optimum Care SLS II, providing supported living services for adults with intellectual and developmental disabilities throughout Marin, Sonoma, Napa, and Solano counties.
Mount Zion Care Group LLC is the parent organization overseeing Optimum Care SLS and Optimum Care SLS II — providing Supported Living, Independent Living, and Coordinated Family Support services for adults with intellectual and developmental disabilities. Both programs accept placements exclusively through regional center referral, in partnership with Golden Gate Regional Center and North Bay Regional Center.
Each program maintains its own admissions details, service area, and referral contact.
Optimum Care SLS provides compassionate, person-centered supported living services that help adults with intellectual and developmental disabilities live safely, independently, and meaningfully in their communities.
View Optimum Care SLS →Optimum Care SLS II provides compassionate, person-centered supported living services that help adults with intellectual and developmental disabilities live safely, independently, and meaningfully in their communities.
View Optimum Care SLS II →Mount Zion Care Group LLC was founded in late 2022 by Gregoire Anglade and Marie Kettly Saint Louis, two healthcare professionals committed to providing dependable, person-centered care. Headquartered in Sonoma County, Mount Zion Care Group is the parent organization for two Supported Living Services programs, Optimum Care SLS and Optimum Care SLS II, which together support adults with intellectual and developmental disabilities across Marin, Sonoma, Napa, and Solano counties in partnership with Golden Gate Regional Center and North Bay Regional Center.
Our mission is to serve every individual with compassion, dignity, integrity, and respect while supporting independence, safety, personal choice, and a meaningful quality of life. Guided by faith-inspired values of love, service, patience, and stewardship, Mount Zion Care Group is committed to treating each person as a valued member of the community. We strive to provide dependable, person-centered care, build trusting relationships with families and community partners, and create environments where individuals feel supported, respected, and empowered to live with purpose.
Mount Zion Care Group LLC is owned and operated by Gregoire Anglade and Marie Kettly Saint Louis, whose combined backgrounds in nursing, healthcare administration, and direct care shape the standard of support across all of the organization's programs.
Gregoire Anglade
Chief Executive Officer (CEO)
Gregoire Anglade is a California-certified administrator holding both RCFE (Residential Care Facility for the Elderly) and ARF (Adult Residential Facility) licenses, with more than twenty years of experience in healthcare and support services throughout Marin County — including work as a gastroenterology nurse and technology specialist at Kaiser Permanente. His clinical background and steady leadership guide Mount Zion Care Group's commitment to personalized, dignified care.
Marie Kettly Saint Louis
Chief Operating Officer (COO)
Marie Kettly Saint Louis is a Registered Nurse and California-certified administrator holding both RCFE and ARF licenses, with more than twenty years of experience supporting elderly adults and individuals with intellectual and developmental disabilities. Her healthcare background and person-centered approach help ensure consistent, dependable, high-quality care across the organization.
