This has led to a phenomenon known as "surprise medical bills", where patients receive large bills for service long after the service was rendered. Since the majority (85%) of Americans have health insurance, they do not directly pay for medical services. Insurance companies, as payors, negotiate health care pricing with providers on behalf of the insured. Hospitals, doctors, and other medical providers have traditionally disclosed their fee schedules only to insurance companies and other institutional payors, and not to individual patients. Uninsured individuals are expected to pay directly for services, but since they lack access to pricing information, price-based competition may be reduced. The introduction of high-deductible insurance has increased demand for pricing information among consumers. As high-deductible health plans rise across the country, with many individuals having deductibles of $2500 or more, their ability to pay for costly procedures diminishes, and hospitals end up covering the cost of patients care. Many health systems are putting in place price transparency initiatives and payments plans for their patients so that the patients better understand what the estimated cost of their care is, and how they can afford to pay for their care over time. Organizations such as the American Medical Association (AMA) and AARP support a "fair and accurate valuation for all physician services". Very few resources exist, however, that allow consumers to compare physician prices. The AMA sponsors the Specialty Society Relative Value Scale Update Committee, a private group of physicians which largely determine how to value physician labor in Medicare prices. Among politicians, former House Speaker Newt Gingrich has called for transparency in the prices of medical devices, noting it is one of the few aspects or U.S. health care where consumers and federal health officials are "barred from comparing the quality, medical outcomes or price". Recently, some insurance companies have announced their intention to begin disclosing provider pricing as a way to encourage cost reduction. Other services exist to assist physicians and their patients, such as Healthcare Out Of Pocket, Accuro Healthcare Solutions, with its CarePricer software. Similarly, medical tourists take advantage of price transparency on websites such as MEDIGO and Purchasing Health, which offer hospital price comparison and appointment booking services. In the United States and most other industrialized nations, emergency medical providers are required to treat any patient that has a life-threatening condition, irrespective of the patient's financial resources. In the U.S., the Emergency Medical Treatment and Active Labor Act requires that hospitals treat all patients in need of emergency medical care without considering patients' ability to pay for service.