Medical Billing Dispute — insurance company denying valid claim

Has anyone dealt with something like this? I'm not sure what my options are.

insurance company denying valid claim. I've been dealing with this for about 14 months now and the situation isn't improving.

I have already consulted briefly with a lawyer but the other party is not cooperating.

What are the risks if I pursue this? What's the likely timeline?

Attorney here. Here's my take on the legal issues.

The key question is whether the applicable statute of limitations has run. Depending on your jurisdiction, you typically have the relevant statute years for this type of claim.

Before taking legal action, consider sending a formal demand letter. In many cases, this alone resolves the issue.