Hi @jenniferhunter, so glad you chimed in. I was told the same thing as you, that if your insurance has in-network access then all the providers who work at Mayo Clinic are also in-network because they work exclusively for Mayo. So far I have not found the Billing Dept to be very helpful in clarifying this. The billing superisor was astonished when I told her what my understanding of in-network(with respect to Mayo) was/is!! Billing has been submitting out-of-network claims to our insurance with in-network access at Mayo. Member service from our insurance has verified Mayo is in-network, as well as the list of insurance contracts on the Mayo website. The billing supervisor said she would look into it. Meantime, I was thinking of contacting the pre-certification department or hope that they can steer me to someone who can help resolve this issue. We've run into billing issues since we found out about it in early May of this year. Other than Billing, are there any other dept you think might be able to help me resolve this? We have dealt with billing issues before at other institutions but Mayo is by far the most difficult to work with because their billing is a black hole!!