Introduction
The proliferation of health care centers in the United States is influenced by various factors which can be broadly categorized into political, social and economic factors. Reforms in the health care system have been ongoing for many years. These reforms are concerned with providing the population with cost-effective, high-quality services which are easily accessible. The demographics are changing with people recognizing the importance of health, and the demand for health care services has influenced the growth and the rise of health care centers. Quality is a major concern in the health care sector and measurement of performance is crucial. ...