From talking with doctors in my area it seems like they need a pre-packaged screening program to order for patients, where they get a report with recommendations. Maybe a set of blood tests, a questionare, and a cognitive test where a program scores them and generates a report. And recommendations about when to provide such tests. Otherwise, they don't know where - or when - to start.
They just send people to specialists - which can be few and far between, with long waiting times - missing the whole pre-symptomatic phase.
Concerned, but hopeful. Introverted, but will talk about science.