other coverage, prescription drug fraud, and failure to disclose claims that were a result of a work-related injury. Provider fraud consists of claims submitted by bogus physicians, billing for services not rendered, billing for higher level of services, diagnosis or treatments that are outside the scope of practice, alterations on claims submissions, and providing services while medical licenses are either suspended or revoked. Independent medical examinations debunk false insurance claims and allow the insurance company or claimant to seek a non-partial medical view for injury-related cases. According to the Coalition Against Insurance Fraud, health insurance fraud depletes taxpayer-funded programs like Medicare, and may victimize patients in the hands of certain doctors. Some scams involve double-billing by doctors who charge insurers for treatments that never occurred, and surgeons who perform unnecessary surgery. According to Roger Feldman, Blue Cross Professor of Health Insurance at the University of Minnesota, one of the main reasons that medical fraud is such a prevalent practice is that nearly all of the parties involved find it favorable in some way. Many physicians see it as necessary to provide quality care for their patients. Many patients, although disapproving of the idea of fraud, are sometimes more willing to accept it when it affects their own medical care. Program administrators are often lenient on the issue of insurance fraud, as they want to maximize the services of their providers. The most common perpetrators of healthcare insurance fraud are health care providers. One reason for this, according to David Hyman, a Professor at the University of Maryland School of Law, is that the historically-prevailing attitude in the medical profession is one of "fidelity to patients". This incentive can lead to fraudulent practices such as billing insurers for treatments that are not covered by the patient's insurance policy. To do this, physicians bill for a different service that the policy covers, rather than the service they rendered. Another motivation for insurance fraud is a desire for financial gain. Public healthcare programs such as Medicare and Medicaid are especially conducive to fraudulent activities, as they are often run on a fee-for-service structure. Physicians use several fraudulent techniques to achieve this end. These can include "up-coding" or "upgrading", which involve billing for more expensive treatments than those actually provided; providing, and subsequently billing for, treatments that are not medically necessary; scheduling extra visits for patients; referring patients to other physicians when no further