American College of Physician Executives
American Hospital Association
America's Health Insurance Plans
California Hospital Association
Catalyst for Payment Reform
The Catholic Health Association of the United States
Community Health Advisors
Equity Healthcare/The Blackstone Group
Florida Blue
Geisinger Health System
Health Care Incentives Improvement Institute
The Leapfrog Group
Maricopa Integrated Health System
Medical Group Management Association
National Rural Health Association
Priority Health

The task force also included a consumer representative and was advised by a representative from the Federal Trade Commission and attorneys from the law firm Sidley Austin LLP.