physician vs medico

physician and medico both are nouns.

Word	Noun	Adjective	Verb	Adverb
physician	Yes	No	No	No
medico	Yes	No	No	No

As nouns, physician and medico are synonyms defined as:

Other synonyms of physician include doc, doctor, Dr., MD.

physician (noun)	medico (noun)
a licensed medical practitioner	a licensed medical practitioner
	a student in medical school