Winifred S. Hayes, Ph.D., M.S., R.N., president and CEO, founded Hayes Inc. in 1989 in response to a growing need in the health care industry for evidence-based assessments of health technologies. Under her leadership, Hayes Inc. has become an international pioneer in providing unbiased, timely, clinically-focused, evidence-based reports to health plans, hospitals, managed-care organizations, government agencies, and health care systems. Hayes lectures and publishes as an advocate for the role that evidence-based decision making plays in improving patient outcomes and health care resource allocation.