<prompt> Human: My wife had given birth at North Austin medical center and she had insurance from KP which is a PPO plan Kaiser permanente insurnace - PHCS provider network - Provider . While joining we verified the hospital is in the provider list and delivery went smooth and here goes the issue with the claim processing 1. Hospital billed insurance for 13K ish.2. Insurance has processed the bill, considered hospital as non-participating provider and paid 60 8k and hospital sent me bill for remaining 5k 3. I was shocked and called back insurance, they realized the claim has been processed wrong and verified that provider is in-network. The overpaid the provider at first. After contract rate adjustment claim total is 2.7k with 0 copay. Insurance reprocessed the claim and asked the provider to return the overpaid money. 4. From there on, provider is not accepting this and keep on sending me bills for payment of 5k. They say they are not contracted. Even after insurance provides them with explanation of benefits and contracted rates from PHCS. Verified with PHCS network that they are in-network as of the date of service and even now.5. I tried to bring all 3 on the same call Insurance, Provider billing dept, me and we discuss provider has to correct the bill, but a week later they get back with the claim to pay me 5k and they didnt reimburse overpaid money to insurance.6. Every-time I call provider billing dept, new representative lifts the call they dont even bother to find all the notes and talk very rude that Ive an outstanding bill. How to end this stalemate. Insurance was patient enough to provide them with all explantation of benefits and all the details as they requested. Any pointers on this would be really helpful Update: Ive called insurance again and asked what are my next steps. Ive asked if I can go ahead with mediation through Texas department of insurancehealth services. Insurance people say they will sort this out with provider and let me know. Update 2: Insurance fought real hard this time and they could fix the things for me. Provider has agreed for the deal with insurance and no more bills to me. Thanks everyone  <response>: This seems to be a common scam and Ive personally experienced it more than once. The in network hospital is not allowed to bill the patient for any excess charges if your insurance has paid the contracted amount for the services provided.There is no downside for the hospital when they pull this scam. If you challenge the bill it was a mistake. If you pay it and many people do it is unearned, free money for them.Contact your insurance company again and tell them the hospital is still trying to scam you for payments that exceed the contracted amounts. In my experience the insurance companies squash this practice pretty aggressively when it is presented this way. 