i'm a boss.

hubby and i own our own business.
we have had employees who have shared medical information and some who haven't.
in your state it may not be a law that you have to share medical info.
it was not a very good situation with the employee who did not share. not being informed didn't allow us to know what to do when a crisis happened.
also making sure that employers are given more than 1 emergency contact numbers is helpful.
i totally agree with what ellie said about medications. if something were to happen, then they would have the list to give to ems.