Insurance Claim Denial: therapist breaching confidentiality

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Illustrative scenario prepared by my practice.
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Hypothetical question

EDIT: added more context below. I've been trying to resolve this on my own but I'm stuck.

therapist breaching confidentiality. I've been dealing with this for about 3 weeks now and the situation isn't improving.

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