The health care market continues to change today, and so do our clients' needs.  MAG's service offering has evolved in response.  MAG has expanded its services to help health care providers manage the demands being placed on them by the expanding role of information and technology in the delivery of health services and the evolution of health service financing mechanisms.  MAG and its subsidiaries represent a grouping of services to medical professionals and health maintenance organizations.  These companies and subsidiaries include Medical Advantage Group, Cadence, the Consortium of Independent Physician Associations, Professional Credential Verification Services and Physician’s Review Organization of Michigan.