I work in Law Enforcement and suffered a work related injury that put me out on Light Duty. The workers comp doc said that I should not run "long distance" which ended up being 300 yds. I was recommended for demotion by my LT. My LT had emailed my workers comp case manager and LOTS of information was passed back and forth (which I was never privvy to) and LOTS of it was incorrect. Statements were made that I had "multiple operations on both knees over the course of my life and that i had known i was not supposed to run long distances" which is an absolutely FALSE statement (one operation, one time, one leg) and my supervisors were using this info for grounds for my demotion... Ultimately I was not demoted, but for months it was meeting after meeting and constant worry about being able to keep my job. Does the fact that all of those emails went back and forth without my consent or knowledge constitute a HIPPA violation? Or the fact that my supervisors were using the incorrect info as a punitive measure?

No, this is not a HIPAA (not HIPPA) violation. Think of HIPAA as doctor/patient privilege. In this case this was a work related injury. Your employer has a right to know what is going on with your case.

It would have been a violation if you went to your private doctor for a non-work-related issue (the flu for example) and the doctor gave out information regarding your illness and/or its treatment.

No, your work place is allowed, to have and get this information,

If there is incorrect information, who is giving it, since your doctor should have the correct info

As noted, this has nothing to do with HIPAA. But I would consider talking with HR and finding out why false information was being bandied about.