Rainfall Health, an AI-driven compliance and reimbursement platform for hospitals and medical groups, announced it has closed on a $15 million Series A funding round. The company will lean on this investment to build out its AI teams and build a world-class customer support team, who will support the hospitals impacted by the Transforming Episode Accountability Model (TEAM), which launched on January 1, 2026.

This Series A investment was led by Two Bear Capital, along with support from other notable investors.

This new CMS mandate incentivizes hospitals and health systems to deliver on quality outcomes associated with the five highest-spend surgical procedures: lower extremity joint replacement, spinal fusion, coronary artery bypass graft, major bowel procedures, and hip/femur fracture treatment. By complying with the quality metrics, hospitals now stand to gain 20% in increased revenue from existing lines of service, yielding more than $100 million in new revenue per Health System.