For disputes above a specific dollar amount, further appeals of Part A hospital benefits are available using the SSA administrative appeals procedure, and finally federal court review. Initial decisions involving non-hospital Part A services will generally be issued by Blue Cross and Blue Shield of Rhode Island. If your dispute is above a specific dollar amount, you can obtain review of Blue Cross' decision through the SSA administrative process and federal court. A dispute involving Part B services must be brought to the appropriate insurance carrier. For disputes involving many AT devices, this will be Metrahealth.
Further review depends upon the cost of the device or service in dispute.
The notices which you receive from Medicare should explain how to appeal Medicare's decision.