AI in health insurance is scaling faster than its evidence base and September 2026 reporting around Medicare’s WISeR pilot made the risk impossible to ignore. AI-assisted prior authorization can accelerate reviews, but speed also amplifies bad data, weak controls, stale policies, and shallow human oversight. Meanwhile, CMS now requires faster decisions and specific denial reasons, with prior-authorization API requirements arriving in 2027. The enterprise challenge is no longer “Can we au...