Customer Service Specialist - Call Center. About us. Since 1996, NueSynergy has been an innovative leader in providing full-service administration of consumer-driven and traditional account-based plans. We have grown into one of the largest benefit account administrators providing Health Savings Accounts (HSA), Flexible Spending Accounts (FSA) and Health Reimbursement Arrangements (HRA). in addition to COBRA, Direct Premiums Billing and Consolida...