“…Due to asymmetry of information, however, patients often rely on their referring physicians to make this consequential choice (Chernew et al, 2021). Given that referring physicians act as gatekeepers to specialty care, it is important to understand how referring physicians choose providers for their patients.Existing evidence suggests that referring physicians care about specialist 'ability' when making referral decisions (Kinchen et al, 2004;Naik et al, 2023). However, relatively little is known about how referring physicians learn about specialist ability.…”