Answer:
The enforcement of Medicare regulations against a hospital for non-compliance would fall under the category of public law. Medicare is a federal government program that provides health insurance for individuals over 65 years of age, as well as for certain people with disabilities or certain medical conditions. As such, Medicare regulations are established by the government and are enforced through administrative agencies, such as the Centers for Medicare and Medicaid Services (CMS).
Public law deals with the relationships between individuals and the government, and includes areas such as constitutional law, administrative law, and criminal law. In this case, the government is enforcing regulations against a hospital, which is a private entity, based on its participation in a public program. Therefore, the enforcement of Medicare regulations against a hospital for non-compliance would be considered an example of public law.