fewer doctors are working in emergency rooms

There is little mystery as to why. Federal data shows emergency
medicine doctors are paid about $310,000 a year on average, while
nurse practitioners and physician assistants earn less than $120,000.
Generally, hospitals can bill for care by a midlevel practitioner at
85% the rate of a doctor while paying them less than half as much.

https://www.npr.org/sections/health-shots/2023/02/11/1154962356/ers-hiring-fewer-doctors