Can you try talking to your primary MD about it ?

I know that , insurance wise, all testing should be done by WC, but I've gotten some things covered by my regular health insurance because the lack of action on dx'ing and treating my TOS by WC was impacting other areas....ie, higher blood pressure because of pain, higher blood sugars because of Neurontin, and depression. Is there something that your primary could work up.....like headaches, which are probably from TOS, but could justify testing/treatment under your regular insurance ?

Desperate times call for desperate measures.