Physician · Diagnoses illness and manages health for years afterward through examination and evidence, not a single operation — medicine's generalist and long-term guide.
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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.
Becoming a physician takes roughly a decade of formal training almost everywhere, but the shape of that decade differs sharply by country: the United States adds four years of unrelated undergraduate study before medical school even starts, while the United Kingdom, most of Europe and much of Asia admit students directly into a five- or six-year medical degree straight from secondary school.
This page lays out the stages most health systems share — medical school, licensing exam, residency, specialty certification — alongside the university preparation, medical schools and credentialing bodies that anchor them in different countries, two routes that exist outside the traditional degree, and what qualifying actually costs.
Countries with direct-entry medical school (UK, most of Europe, India, Japan) admit students straight from secondary school; the United States and Canada instead require a separate bachelor's degree, usually heavy in biology and chemistry, before applying.
The filterIn the US, the MCAT admissions test and undergraduate GPA; in direct-entry systems, a national school-leaving exam or a dedicated medical-school entrance exam, often the single most competitive test in the country.
Pre-clinical years cover anatomy, physiology, pharmacology and pathology in lecture and lab; clinical years place students on hospital wards rotating through internal medicine, surgery, pediatrics, obstetrics and psychiatry under supervision.
The filterRolling written and clinical exams throughout, plus a licensing-track exam partway through — USMLE Step 1 in the US, taken after the pre-clinical years and now graded pass/fail.
Graduates earn an MD, MBBS or equivalent degree, then sit a national or state licensing exam covering clinical knowledge before they may practice medicine at all, even under supervision.
The filterA national licensing exam — USMLE Step 2 in the US, the medical council's final professional exam elsewhere — that every graduate must pass regardless of which specialty they intend to enter.
New graduates work as salaried trainee physicians inside a hospital or clinic system, taking on steadily more responsibility for real patients under supervision; internal medicine and family medicine residencies typically run three years, other specialties longer.
The filterIn the US, matching into a residency program through the centralized National Resident Matching Program — a single annual algorithm that places nearly every graduating student, all at once, on 'Match Day.'
After completing residency, physicians sit a specialty board exam — the American Board of Internal Medicine's certifying exam, the UK's MRCP, Germany's Facharzt examination — that confers the formal right to practice and advertise as a specialist.
The filterA written and often oral or clinical specialty exam, retaken or renewed periodically in many countries to keep the certification current rather than granted for life.
A fully certified physician can now practice independently, join or found a group practice, or take a salaried hospital post; many spend a further one to three years in a subspecialty fellowship — cardiology, endocrinology, gastroenterology — before settling into a permanent role.
The filterOngoing medical-license renewal and continuing medical education credits, plus, in most countries, malpractice insurance and hospital credentialing before a physician can actually see patients at a given institution.
A US medical degree can run well over $300,000 in tuition and fees before residency even begins, while medical school is largely tuition-free or low-cost in Germany, much of Scandinavia, and for domestic students at many public universities elsewhere — though residents everywhere absorb years of below-market pay as a real economic cost regardless of tuition.
The most common undergraduate major among US medical school applicants, giving direct grounding in the cell biology, genetics and physiology that dominate the first two years of medical school and the MCAT admissions test.
Covers organic chemistry and biochemistry in more depth than a biology major typically does, subjects that make up roughly half of the MCAT and underpin pharmacology — how and why drugs work — later in medical school.
In the UK, most of Europe, India and Japan there is no separate 'pre-med' major at all: applicants apply to a five- or six-year medical degree directly from secondary school, admitted on exam results and interviews rather than an undergraduate transcript.
Gives early exposure to epidemiology, biostatistics and health systems, useful preparation for physicians who end up in preventive medicine, public health leadership or research alongside clinical practice.
Some physicians enter through an accelerated graduate-entry medical degree after first qualifying and working in nursing, paramedicine or another clinical role, arriving at medical school with direct patient-care experience most classmates lack.
Founded in 1893 on the model William Osler helped build — teaching at the bedside rather than only in lecture halls — and still ranked among the world's leading centers for both clinical training and research.
Combines a pre-clinical degree steeped in physiology and biochemistry with clinical training at Oxford's teaching hospitals; graduates sit the same MRCP and Royal College exams as every other UK-trained physician.
Founded in 1810 to train army surgeons after heavy losses in the Finnish War, it now selects the Nobel Prize in Physiology or Medicine and ranks among Europe's most research-intensive medical schools.
Growing out of a 1710 Berlin plague hospital, it is one of Europe's largest university hospitals and a common site for Facharzt (specialist) training in internal medicine after German medical school and the Approbation license.
Japan's oldest medical faculty, entered through one of the country's most competitive university admissions processes; graduates still sit the national Ishi Kokka Shiken licensing exam before independent practice.
Established by a 1956 Act of Parliament as an autonomous, research-driven alternative to India's existing medical colleges, and consistently the most competitive medical school entry in the country.
One of Latin America's oldest and most selective medical schools, training physicians who go on to staff both Brazil's public SUS health system and its private hospital networks.
Sub-Saharan Africa's oldest medical school, tracing its teaching hospital lineage to 1912, and a major training pipeline for physicians across Southern Africa.
Graduates pass the three-step United States Medical Licensing Examination to become licensed, then, after an internal medicine residency, sit the American Board of Internal Medicine's certifying exam to practice and advertise as a board-certified internist.
The Membership of the Royal Colleges of Physicians, run jointly by the Royal Colleges of Physicians of London, Edinburgh and Glasgow, requires two written exams and a clinical assessment called PACES; passing it is required to train as a physician specialist anywhere in the UK.
After medical school, graduates earn the Approbation license, then complete five to six years of supervised Weiterbildung (further training) in a chosen specialty such as internal medicine before a regional medical chamber certifies them as a Facharzt.
A single national exam, administered by Japan's Ministry of Health, Labour and Welfare after six years of integrated medical education, that every graduate must pass before beginning the supervised clinical training required for independent practice.
Physician associates, called physician assistants in the US, complete a two- to three-year master's-level program after a health-science bachelor's degree and practice medicine under a supervising physician's license — faster and cheaper than medical school, but without the independent licensing or full scope of a physician.
Physicians trained and sometimes already practicing in one country can re-qualify in another — for example, passing the USMLE as an international medical graduate to enter a US residency — a slower, exam-heavy but well-worn path that supplies a large share of some countries' physician workforce.
Closest neighbours on the six-score profile — not the same field only.
Designs and fabricates the transistors inside every computer, phone and weapon, using machines precise enough that only a few factories on Earth can run them.
AI-resistant 60 🧠Diagnoses and treats mental illness through medication and therapy, one of medicine's only specialties with legal authority to detain a patient in crisis.
AI-resistant 73 🧫Uses clinical, trial and health-system data to generate reliable evidence for safer care, research and operational decisions.
AI-resistant 68 🦾Designs the machines that sense, decide and act in the physical world, where the hard problem was never intelligence but the world itself.
AI-resistant 65 🔐Protects systems, data and people by finding, preventing and responding to digital attacks.
AI-resistant 63 🌬️Designs, builds and improves wind, solar, storage and grid systems that turn renewable resources into dependable electricity.
AI-resistant 72The physician who operates to cure, from Sushruta's ancient rhinoplasty to today's robotic operating rooms, still alone with the decision at the table.
AI-resistant 92 💉Healthcare's largest profession: from Scutari's lamp to the ICU monitor, the person who is still at the bedside when everyone else has gone home.
AI-resistant 91 💊The medicines expert behind every prescription — from Baghdad's first drug shops and the apothecary's mortar to morphine, artemisinin and the modern dispensary.
AI-resistant 58 🐾Treats patients from goldfish to horses that cannot describe a symptom, and carries the legal power to end their suffering by euthanasia.
AI-resistant 78 🧠Diagnoses and treats mental illness through medication and therapy, one of medicine's only specialties with legal authority to detain a patient in crisis.
AI-resistant 73 🧬Helps people understand inherited conditions, testing choices and results, combining genomic science with non-directive, compassionate counseling.
AI-resistant 72