AARP Eye Center
If you have traditional medicare and not an advantage plan then your insurance is good where ever medicare is accepted. Your medigap plan, which is issued by united health care, is required, by federal law, to pay when medicare pays. As a result all that matters is that your provider accepts medicare.
If, on the other hand, you have an advantage plan from united health care (eg plan C) then a provider can choose to accept it or not (they are not required to accept it).
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