Provider not providing codes for claim processing.

Anyone have any advice on how to proceed further with an issue like this. The backstory is I had to get a physical exam done for a state dept position (physical and stress test). The state department will only reimburse for costs not covered by insurance. I'm currently covered by blue cross blue shields FED employee program. So I had the procedures done at a concentra occupational clinic, since it was the most convenient to get the work done in a quick time frame (only allotted 90 days to get the exams done).

I've tried filing a claim with my insurance but the provider (concentra) has not provided the diagnosis code, CPT code, and no tax id number. I've tried getting it from them to no avail (was able to get the itemized list), BCBS has tried twice (once via letter, and via three way call I was one), I've also tried emailing an email I was given by a provider rep on the phone but received no response. Anyone have any recommendations on how to further proceed?

TLDR version I'm stuck in limbo because the provider wouldn't give correct codes needed to process a claim, despite being asked multiple times.

Thank you all

submitted by /u/Leviath73
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