The antonyms for the word "nonphysician" are "physician," "doctor," "surgeon," "specialist," "medical practitioner," "healthcare professional," and "medical doctor." These antonyms refer to professionals who possess the necessary education, training, and licensure to diagnose and treat medical conditions. Nonphysicians, on the other hand, include healthcare workers who perform support services such as medical assistants, nurses, and administrative personnel. While nonphysicians may assist in the provision of medical care, they must work under the supervision and direction of a licensed physician. Therefore, understanding the antonyms of nonphysician is essential to fully appreciate the different roles healthcare professionals play in the medical industry.