Had a very interesting conversation with the security dept. of a local hospital a couple of weeks ago.
Took my wife there for 3 days of tests and did not see the requisite signs to ban firearms. TN law requires a sign at any entrance used by the general public. I decided as a courtesy to check with security to make sure I hadn't missed something. After all, every other hospital in this part of the state has the signs conspicuously posted. (Attn: BGs, most West TN hospitals are free-fire zones for you.)
Security told me that management doesn't want to give the impression that they are in a bad area and that the hospital's lawyer opined that if they make an announcement over the PA system periodically that guns are prohibited, that would meet the requirements. We both had a good laugh over that. Worse yet, the security people are not allowed to carry either as a function of their jobs or their own personal CCWs. If a situation arises necessitating the use of a firearm, they are instructed to call the local police.
Bottom line: ok to carry there, don't alarm the sheeple, and if anyone questions me, tell them that ____ said it was ok and check with them (protecting my source). Turns out as well that the security person and I are both big 10mm auto fans and will be getting together to shoot.
BTW, regarding liberal doctors, one of my best friends is a neurosurgeon, very conservative, loves guns and shooting and a real hot-shot rock and roll guitar player. So much for stereotypes.