anyone w/knowledge of Medicare???

[abevilac]

My parents are 90 and 92 and have been in very good health, but now my Dad has a skin cancer that required some surgery and now follow-up radiation. They are starting to get bills from the hospital and I happen to be visiting and I saw that one bill said that "our records show that you have one insurance plan. If you have coverage with any other plan, please contact us."

So, the have Medicare and a supplemental insurance called KHPE. When they go to the hospital, they have only shown the KHPE card and never the Medicare card.

I am wondering if the hospital has ever submitted anything to Medicare??? Wouldn't they need the info on the cards? I find it odd that they have never been asked for the Medicare card. Does anyone have a clue?

Thanks.