Five Star Senior Living Inc., formerly Five Star Quality Care, Inc., operates senior living communities, including independent living communities, assisted living communities and skilled nursing facilities (SNFs). The Company’s segments include senior living communities and rehabilitation and wellness. In the senior living communities segment, the Company operates for its own account or manage for the account of others independent living communities, assisted living communities and SNFs that are subject to centralized oversight and provide housing and services to elderly residents. In the rehabilitation and wellness segment, the Company provides services in the inpatient setting and in outpatient clinics. As of December 31, 2016, the Company operated 283 senior living communities located in 32 states with 31,830 living units, including 253 primarily independent and assisted living communities with 29,229 living units and 30 SNFs with 2,601 living units.