Scammer Says My Medicare Card Will Be Deactivated with No Warning if I Don't Answer Questions

I receive scam phone calls every day. While my improv skills are weak, I try to waste their time anyway.

"Do you have your Medicare card handy?" This makes sense.
"Do you have your Medicare card in your hand?" This also makes sense.

"Go and get your Medikeer card in your handy." THIS is a scam.