Once you let the cat out of the bag that you are considering leaving, you are toast.
Employers are also supposed hire someone 7 months pregnant that shows up for an interview - but no one does.
I don't think an employee would have a leg to stand on screaming about violating
HIPAA for inter office chatter - no way.
The bigger issue you bring up is the fact that EMPLOYEES have NO CLUE what their Health Care cost and what portion the employer is paying. This would be nice to clearly print on the employees pay stub - then the employee would know the answer to their question and maybe not say "PER MONTH?" every time someone calls me for an IFP quote.