Mary Thomsen, RN CCM Supervisor AmerBen Utilization Management   Mary has been with AmeriBen Utilization Management for 2+ years. She has over 30 years of varied nursing experience in Medical, Surgical, Operating Room and GI nursing. She has been involved in clinical nursing as a staff member, a Nurse Educator and as the Manager of an Endoscopy Center. She is a Registered Nurse and Certified Case Manager with prior experience as a Case Manager with a large fully insured group where she managed catastrophic cases and the Federal Employee Program.