Citadel Outsource Group was founded in 2004 by hospital finance and revenue cycle professionals to provide business office and revenue cycle management services. They maintain qualified staff to resolve claims from coding through balance write-offs or patient responsibility. Citadel aims to reduce clients' administrative burden and make their bottom line the top concern. Their services include billing, claim resolution, denial management, and cash posting to handle everything after coding and integrate seamlessly into clients' systems. Citadel provides staffing flexibility, no additional hardware costs, and low management oversight to benefit healthcare providers.