Question: I just got my first job in the medical field and have seen the word APP (all capitalized letters) around occasionally. When I see that word in nonmedical contexts, I think of applications, like for a phone. What should this mean while I’m at work? Codify Subscriber Answer: APP is an acronym that is becoming more popular in some corners of the medical community as a replacement for the acronym NPP, says Suzan Hauptman, MPM, CPC, CEMC, CEDC, director, compliance audit, Cancer Treatment Centers of America. APP stands for “advanced practice provider” while the perhaps more familiar NPP stands for nonphysician practitioner.