Health Care Administrators Association (HCAA)HCAA is the one of the most useful resources for healthcare administrators to stay on the cutting edge of industry and business issues while also benefiting from an open exchange of information. Membership is beneficial for third party administrators and the professionals who serve them, including Insurance Carriers, Broker/Agents Management, General Underwriters, Pharmacy Benefits, Managers Preferred Provider, Organizations Healthcare Consultants, Software Providers, Medical Management Organizations and Legal Counsel.