PCP vs primary care provider

PCP and primary care provider both are nouns.

Word	Noun	Adjective	Verb	Adverb
PCP	Yes	No	No	No
primary care provider	Yes	No	No	No

As nouns, PCP and primary care provider are synonyms defined as:

PCP and primary care provider: a person who helps in identifying or preventing or treating illness or disability

Other synonyms of PCP include caregiver, health care provider, health professional.

PCP (noun)	primary care provider (noun)
a drug used as an anesthetic by veterinarians; illicitly taken (originally in the form of powder or `dust') for its effects as a hallucinogen	a person who helps in identifying or preventing or treating illness or disability
a person who helps in identifying or preventing or treating illness or disability