Ah yes HIPAA does apply to us all. Also HIPAA only applies to personal medical information or information that can identify the person. If you tell the officer your patient said they smoked weed an hour ago you didn't disclose any personal information.
But HIPAA also has exemptions here is just a few copied from the HIPAA website:
If an officer suspects my patient of doing something, he's going to have been at the scene to find out who's involved. He can subpoena the ER records for a BA and a UDS. He can subpoena my report for what the patient said and the findings of my assessment. What he can't do is get that info from me.
None of that has anything to do with carrying as an EMS provider, however, nor does it change what I said. If I carry, it's not to enforce laws, it's to save my hind end so I get to go home at the end of the shift, just like when I carry any other time, it's because I know that my pistol can only help me if it's available, not locked in the safe at home.
Blessings,
Bill