State legislators are filling the artificial intelligence regulatory void in the absence of a federal framework for emerging health care devices, creating a challenging patchwork of laws with which providers, insurers, patients and other health stakeholders must comply. Stakeholders say the emerging patchwork of state health AI regulations could harm patient access and technological innovation, adding that new federal policies are necessary. This year, 22 states have introduced legislation addressing AI “health use,” up from 11 states in 2023 and...