A new Harvey L. Neiman Health Policy Institute study found that neurointerventionalists, who often deliver lifesaving and disability-sparing treatments for emergency stroke cases, have essentially no financially viable access to payment recovery through the No Surprises Act (NSA) for professional mechanical thrombectomy (MT) out-of-network (OON) claims. MT is an effective treatment for emergent large vessel occlusions, such as ischemic stroke. This Journal of Neurointerventional Surgery study was based on 1,000 simulated years of OON MT claims.