Good question. I have Medicare "F" which does not have a deductible, so that isnt the issue. I wish it was.... 

Stanford and the provider are participating providers.  I never signed an Advanced Beneficiary Notice. This service/procedure, which I have to get every 3 - 4 weeks, has been covered since 2018.  I first tried to chat with Medicare, then called Medic...

On my Medicare Claims and Medicare Summary, a service is not covered and Medicare States I may be billed / am responsible for $0. This is with a Medicare Contractrated Provider.  Stanford is taking the amount I am not responsible per Medicare and bil...