The search results provided do not contain any information related to AI agents or agentic AI in healthcare, which is the specific requirement outlined in your query. While the results include several relevant healthcare news items from the week of April 13-21, 2026, they focus exclusively on traditional healthcare policy, clinical services, and institutional changes rather than artificial intelligence technologies.

The healthcare stories in these search results cover important topics but do not address your AI focus. Results discuss the Centers for Medicare & Medicaid Services (CMS) proposing nationwide bundled payment models for joint replacement procedures, vaccine policy expansions in Maine allowing pharmacists greater authority, bilateral health agreements between the United States and other countries, and updates to Medicare coverage options. Additionally, the results reference hemophilia research, regional health system meetings, and comparative studies of healthcare systems globally.

To provide you with a comprehensive digest specifically about AI agents and agentic AI in healthcare, I would need search results containing relevant information such as: implementations of autonomous AI systems in hospitals or clinics, machine learning applications for clinical decision-making, AI-powered diagnostic tools, natural language processing in healthcare, robotic process automation in medical settings, or other agentic AI technologies transforming healthcare delivery. The current search results lack this critical focus area.

I recommend conducting a new search with terms specifically targeting AI agents, agentic AI, artificial intelligence applications, machine learning in healthcare, autonomous AI systems, or related keywords to obtain results that match your request. This will allow me to generate an accurate, citation-supported digest that meets your specifications for content, reading level, and format requirements.