u/Admirable-Series-292

Hello, first time on the subreddit, please remove if the is the wrong place to ask.

My uncle is a physical therapist and owns his own business. He has been having some money troubles recently and I volunteered to help look over some things. In going through his books, it seems like there are many instances of insurance companies just not paying for treatments. These patients are in-network and paying their copays, but then the insurance companies don’t pay their portion. From January 01, 2026 to end of April alone, there about $60k in unpaid insurance contributions that are 120+ days past due. What recourse does he have to collect from insurance companies? He has an in-house biller on payroll. Are they just not doing their job adequately?