See schedule oclinical and support options, INC. (CSO) is a community agency in massachusetts, providing a full range of comprehensive mental health, crisis stabilization, psychiatric and counseling services to adults, children, families, couples and seniors throughout the 4 counties of western massachusetts. This continuum of care is available at facilities in greenfield, orange, athol, northampton, amherst, pittsfield and springfield.CSO is a full service behavioral health agency, which commits internally to excellence in our services while we collaborate externally with community partners to establish and participate in a comprehensive system of assistance and resources for the residents of our communities.