medicare check vs medicare payment

medicare check and medicare payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
medicare check	Yes	No	No	No
medicare payment	Yes	No	No	No

As nouns, medicare check and medicare payment are synonyms defined as:

medicare check and medicare payment: a check reimbursing an aged person for the expenses of health care

medicare check (noun)	medicare payment (noun)
a check reimbursing an aged person for the expenses of health care	a check reimbursing an aged person for the expenses of health care