Hi @hello1234, all of the services they have billed so far are out of network. My hubby has Medicare as primary and employer insurance as secondary. Our secondary insurance is BCBS of California PPO(also known as Anthem Blue Cross of Calif) which is listed as in-network in Mayo Clinic in Az. The billing supervisor seems to imply that not all providers are in-network at Mayo which is contrary to what we were told when we first signed up to go to Mayo in 2021!! She said she would look into it but so will I. I have already spoken to Member services but I'm going to get it in writing.