I had a liver transplant in 2023 at Mayo in Arizona. I live in Oklahoma. I have BCBS of Arkansas through Walmart, where my wife works. Regular lab draws are required and I have a DLO (Quest) and few minutes away from my home. I checked DLO's website which stated they accepted my plan. I got my labs drawn many times over the course of 6-7 months before receiving bills from the lab for the full amount, insurance was paying nothing. After contacting insurance, they said the particular location was not in network. No idea why one would be out of network but other locations of the same company are. However, after conferring with both BCBS and DLO, I was told that BCBS of Arizona is being billed because that's where the ordering provider is from. No one seems to be very helpful on either end as far as getting anything resolved, and there's nearly 20K worth of labs being denied. Does this seem accurate from both the insurance perspective of billing another state's plan as well as why they would deny one location but not another of the same company? Any suggestions on what I should do or how to handle? Thanks!