Pdoc is a compressed phrase combining psychiatrist/psychologist and doctor. In conversations patients often want to distinguish between their general practitioner and their mental health practitioner, but psychiatrist is a long word and difficult to spell. So, in keeping with the instant message and texting trends to rely on abbreviations and acronyms, we have the evolution of a new word – pdoc.
For further reading, you may find Who Are All These Mental Healthcare Professionals an interesting article.

