The Center at Sierra Health Foundation Sierra Health Foundation's mission is to invest in and serve as a catalyst for ideas, partnerships and programs that improve health and quality of life through convening, educating and strategic grantmaking.Client Sector: Foundation Related Projects: Formal Assessment of the Landscape of Medication-Assisted Treatment Programs in CaliforniaFacente Consulting is collaborating with the Sierra Health Foundation to improve access to Medication-Assisted Treatment (MAT) services in California.