Finance issue brief: any willing provider: year end report-2003.

Today, almost half the states have laws obligating managed care organizations (MCOs) such as health maintenance organizations (HMOs) and preferred provider organizations (PPOs) to contract with any willing health care provider. Although most provisions are limited to pharmacies or pharmacists, several states have adopted broad provisions applying to hospitals, physicians, chiropractors, pharmacists, podiatrists, therapists and nurses.