I once insisted with an optometrist that they only take my insurance number and not my SSN. They contacted my insurance and the insurance sent them my SSN.
I can't avoid medical insurance having my SSN because of tax reporting requirements.
I can't avoid medical insurance having my SSN because of tax reporting requirements.
If all you're doing is making them get the information from someone else, what exactly are you accomplishing? Adding a bit of friction to a process?
I mean, fine, if that's the aim, but it sounds like this was intended as more of a “they don't need this information at all, and if you don't give it to them, then they won't have it” technique, and (apparently) that doesn't work.
There is no "someone else" who will give the insurer this information.