What Does CGSMedicare Stand For? 
CGS Medicare stands for a Celerian Group Company . The company provides a variety of services for Medicare beneficiaries , healthcare providers , and medical equipment suppliers . CSG is a Medicare Administrative Contractor for the Centers for Medicare and Medicaid Services -LRB- CMS -RRB- for Medicare Part A , Part B , Home Health and Hospice -LRB- HH&H -RRB- and Durable Medical Equipment -LRB- DME -RRB- . 