Welcome to the San Mateo County Behavioral Health Advocates, a  dedicated group of community members who are passionate about enhancing the behavioral  health services available to our local residents. As behavioral health advocates in San  Mateo County, CA, we are committed to ensuring that everyone, especially the uninsured, has  access to quality behavioral health care. Our efforts are fueled by the support of local  foundations and citizens who share our vision for a healthier community.