I agree with @Bayequentist but would go further.

"Statistician" is a broader term than just people with a PhD in statistics. My PhD is in psychometrics, but I've worked as a statistician for more than 20 years. (When talking to statisticians, I call myself a data analyst).

I know less theory than a lot of people (probably less than almost all the regular answerers on this site) but I've got a lot of practical experience with data.

So, e.g. I'd expect anyone called a statistician to know something about various kinds of regression. But what about them? Need we all be able to prove various theorems? I don't think so. Need we all be able to take a messy data set and figure out how to model it (and know how to interact with the substance-matter expert)? I don't think so.

(I can do the second, but not the first).