Final answer:
The healthcare professional described is a Physician Assistant (PA), who completes about 26 1/2 months of education to provide medical care under a physician's supervision.
Step-by-step explanation:
The healthcare professional who goes through approximately 26 1/2 months of education and is licensed to practice medicine with the oversight of a physician is called a Physician Assistant (PA). Physician Assistants are trained to perform many of the diagnostic, preventative, and health maintenance services as physicians do, as part of a healthcare team. PAs can work in a variety of medical settings and specialties, collaborating with doctors and other healthcare providers to offer high-quality medical care to patients.