Bethany north suburban group (bnsg) provides exceptional senior community living and health care that promotes holistic well-being for residents and clients through: chestnut square at the glen, partners in health care and partners in home health care. bnsg was established in 2003 and is a division of bethany methodist corporation, a faith-based organization affiliated with the united methodist church. the organization is guided by the values of compassion, advocacy, trust, teamwork and transparency.