The search results provided do not contain sufficient information to create a comprehensive healthcare news digest focused specifically on AI agents or agentic AI for the week of April 20-28, 2026.

While the search results include several healthcare-related stories from this time period, they primarily focus on policy changes, funding opportunities, and healthcare system management rather than artificial intelligence agents or agentic systems. For example, search result mentions that Grand Challenges Grant Opportunities for 2026 include funding for "AI for charitable giving," but provides no details about agentic AI applications. Similarly, search result references discussions about "Automation in Medicaid Prior Authorization" at a MACPAC meeting, which could potentially involve AI systems, but does not specify whether these are agentic AI systems or other automation approaches.

To provide you with an accurate and comprehensive digest of healthcare news specifically related to AI agents or agentic AI, the search results would need to contain articles, announcements, or reports that directly discuss autonomous AI systems, multi-agent AI platforms, or agentic AI implementations in healthcare settings. The current search results appear to have been generated from broader healthcare policy and business searches rather than specialized queries targeting AI agent technology.

I recommend conducting a new search specifically focused on terms like "agentic AI healthcare," "AI agents medical," "autonomous healthcare systems," or "multi-agent AI" to find the relevant articles and information needed to create the digest you requested.