Ancilla Systems

Hobart, Indiana

ConnectiCare Physicians Network, Inc.

Farmington, Connecticut

Group Health Association

Washington, D.C.

Hartford Physician Hospital Organization

Hartford, Connecticut

Health Maintenance Plan,
Community Mutual Insurance Company

Columbus, Ohio

HealthPlus

Greenbelt, Maryland

Integrated Physicians Services

Falls Church, Virginia

KHP Services/Synertech

Camp Hill, Pennsylvania