@sofaramnotdead, I would think (but don't know) that coverage is dependent on a) the type of insurance one has and b) the condition for which one is receiving IVIg. Your warning to others that they do their due diligence and find out about cost and reimbursement when considering IVIg therapy is well pointed. Thank you.

I regret that you are not getting satisfactory assistance from Patient Account Services. Have you talked to the Office of Patient Experience about this issue? I wonder if they may be of help. Here's their contact info: https://www.mayoclinic.org/about-mayo-clinic/patient-experience