Locations include: Arlington, Auburn, Boston, Brookline, Cambridge, Canton, Chelmsford, Concord, Danvers, Easton, Framingham, Groton, Hopkinton, Lexington, Lynnfield, Mansfield, Medford, Medfield, Milford, Newton, Needham, North Andover, Northborough, Norwell, Norwood, Plymouth, Quincy, Raynham, Stoneham, Waltham, Wellesley, Weymouth, Woburn Why Join Us?. About LifeStance Health LifeStance is a national provider of mental healthcare services focused on evidenced-based, medically driven treatment services for children, adolescents and adults suffering from a variety of mental health issues in an outpatient care setting, both in-person at its clinics nationwide and through its digital health telemedicine offering.