medical building vs healthcare facility

medical building and healthcare facility both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical building	Yes	No	No	No
healthcare facility	Yes	No	No	No

As nouns, medical building and healthcare facility are synonyms defined as:

medical building and healthcare facility: building where medicine is practiced

Other synonyms of medical building include health facility.

medical building (noun)	healthcare facility (noun)
building where medicine is practiced	building where medicine is practiced