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 and Partners in 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.