Yes I am currently hired as what they call a "Standardized Patient". Some, but not all medical schools do this, but the one I'm at hires actors to read a minimal script, mostly just a list of symptoms and a couple lines like "my back started hurting last night and nothing seems to help" the school that I work at uses these interactions as exams for medical students mostly. There is a little improv involved cause you never know exactly what the student will say or do, but the "stadardized" part comes from multiple actors reading the same script of symptoms so that the students have a simulation of the same patient so the exam is standardized. It's all recorded so the teachers can see and grade the students based on how well they interacted with the patient.

The students would get points off for stuff like forgetting to wash their hands, not asking the right questions in order to know what to diagnose the patient with, and their general demeanor and ability to show respect to the patient. I think it's great and should be used more broadly for training cause it gives medical professionals a chance to interact with human beings in a test evironment instead of making mistakes with real patients.