Is it possible to subpoena an HIV test result from a medical provider for a non-sexual offense? It doesn't seem like it is possible under Health & Safety Code section 81.103, but wondering if anyone has dealt with this issue.

What are you hoping to accomplish? If you think a peace officer was exposed, for example by human bite, there is another way to go. You can get a court-ordered test under CCP 18.22. Easy process.