Dealing with his healthcare providers was a bit of a pain, but it was way worse because he has stopped answering calls, primarily because of the call spam rate. I think because he owns his own business, he never fails to hand out his contact info when he is shopping, and he owns his own business (so his contact info is published by the city).
His phone provider has a feature to opt into spam filtering, his phone has another, and I downloaded a spam list filtering app for him. I disabled the ringer for numbers not in his contact list. I did similar actions to reduce spam in his text messages.
This was a good triage, but the damage is already done to his psyche. He doesn’t answer the phone anymore.