Medical Issues: Can Employers Question Your Reason for FMLA Absence

My question involves labor and employment law for the state of: Georgia

My employer has instituted a policy of questioning the purpose of intermittent FMLA leave AND whether the absence is for an appointment or an episode. They are also now requesting medical/ doctor's notes for all FMLA leave. Of course, depending on your medical condition and reason for FMLA, not all leave will result in a doctor's visit. Does this currently violate any FMLA, DOL, or HIPAA laws or regulations? Thanks.

Medical Issues: Can Employers Question Your Reason for FMLA Absence