What organization implemented a set of patient rights in 1995?

The correct organization that implemented a set of patient rights in 1995 is the American Hospital Association. The American Hospital Association introduced the "Patient's Bill of Rights" to affirm patients' rights to receive respectful and patient-centered care, emphasizing the importance of communication between patients and healthcare providers. This initiative was aimed at enhancing the quality of care by ensuring that patients are informed about their rights within a healthcare setting.

While other organizations mentioned have their own roles in healthcare advocacy and policy, they did not specifically establish this set of rights in that year. The American Medical Association focuses more broadly on medical ethics and standards, the Association of American Physicians and Surgeons advocates for political and economic aspects of healthcare, and the National Health Service is a publicly funded healthcare system in the UK that operates under different guidelines and rights.