My rule is that doctors are welcome to contact me when I’m off if they feel they need anything from me. Support staff are not. They need to ask the dr on duty as they are likely able to resolve whatever issue or sensibly decide if it’s something worth bothering me about.
I find that if I don’t enforce this, I get annoying ass texts/calls that are along the lines of “can lucky smith just come in as a tech appt for repeat bloodwork, or does it need a recheck?” Like first of all, who the **** is lucky Smith? Second, don’t call me about this ****. Either take a message and we can deal with it when I’m in, or schedule as a recheck to be safe and we can always turn it into a tech appt if needed. And finally, most of the time it says in my ****ing records what the exact plan is if they could just read.