Five Star Senior Living Inc. operates and manages senior living communities in the United States. It operates through Senior Living Communities, and Rehabilitation and Wellness segments. Its senior living communities comprise independent living communities, assisted living communities, continuing care retirement communities (CCRCs), and skilled nursing facilities (SNFs). The company offers nursing and healthcare services; and rehabilitation and wellness services. As of December 31, 2019, it operated 268 senior living communities consisting of 31,285 living units comprising 257 primarily independent and assisted living communities with 30,021 living units, and 11 SNFs with 1,264 living units located in 32 states. The company was formerly known as Five Star Quality Care, Inc. and changed its name to Five Star Senior Living Inc. in March 2017. Five Star Senior Living Inc. was founded in 2001 and is headquartered in Newton, Massachusetts.