🩺Pay & Market

A physician diagnoses and manages illness through examination, testing and medication, typically following a patient over months or years. A surgeon treats disease or injury by operating, usually for a single well-defined episode of care. Many physicians — internists, family doctors, cardiologists — never operate; some conditions are handled entirely by a physician, others are referred to a surgeon once medical treatment is exhausted.

Most countries require roughly ten to eleven years after secondary school: four to six years of medical school followed by three or more years of residency in a specialty such as internal medicine, family medicine or pediatrics. The United Kingdom compresses medical school to five or six years but adds a two-year foundation programme before specialty training begins, so the total ends up similar.

In everyday English, "doctor" covers any licensed physician, including surgeons and specialists. "Physician" more precisely means a non-surgical doctor practicing internal medicine or a related specialty. A "general practitioner" or family doctor is a physician trained broadly rather than in one organ system, usually a patient's first point of contact and the one who decides which specialist, if any, a case needs next.

It varies enormously by country and specialty. Primary care physicians in the United States earn roughly $220,000 to $260,000 a year on average; NHS consultant physicians in England sit on a national scale from about £93,666 to £126,281; salaried internal medicine specialists in Germany typically earn €90,000 to €110,000. Physicians in lower-income countries often earn a small fraction of these figures despite comparable training.

Diagnostic pattern-matching is exactly the kind of task large language models are improving at fastest, and controlled studies already show some AI systems matching or beating physicians on written case tests. What survives is harder to automate: physical examination, years of trust with a returning patient, weighing a person's full context, and carrying legal responsibility no algorithm can hold. That narrows the job rather than replacing it.

A physician completes medical school and residency, typically ten or more years of training, and in most countries can independently diagnose, prescribe and manage the full range of adult or pediatric disease. A nurse practitioner completes a nursing degree plus a master's or doctoral program, usually four to six years total, and in many US states can practice independently within a narrower scope, often in primary care.