A Practice Note providing an overview of AI for health care providers. This Note explains terms used for AI in health care, such as natural language processing, machine learning, generative AI (GenAI), and clinical decision support software. This Note also provides an overview of the key regulatory requirements applicable to AI used in health care, including regulation by the Food and Drug Administration (FDA), the Federal Trade Commission (FTC), the Department of Health & Human Services (HHS), and state laws.