Physician

A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments. They may focus their practice on certain disease categories, types of patients or methods of treatment – known as specialist medical practitioners – or assume responsibility for the provision of continuing and comprehensive medical care to individuals, families and communities – known as general practitioners. Medical practice properly requires both a detailed knowledge of the academic disciplines (such as anatomy and physiology) underlying diseases and their treatment – the science of medicine – and also a decent competence in its applied practice – the art or craft of medicine.

Both the role of the physician and the meaning of the word itself vary around the world, including a wide variety of qualifications and degrees, but there are some common elements. For example, the ethics of medicine require that physicians show consideration, compassion and benevolence for their patients.

Modern meanings
In modern English, the term physician is used in two main ways, with relatively broad and narrow meanings respectively. This is the result of history and is often confusing. These meanings and variations are explained below.

Specialist in internal medicine
Around the world the term physician refers to a specialist in internal medicine or one of its many sub-specialties (especially as opposed to a specialist in surgery). This meaning of physician conveys a sense of expertise in treatment by drugs or medications, rather than by the procedures of surgeons.

This term is at least nine hundred years old in English: physicians and surgeons were once members of separate professions, and traditionally were rivals. The Shorter Oxford English Dictionary, third edition, gives a Middle English quotation making this contrast, from as early as 1400:

Henry VIII granted a charter to the London Royal College of Physicians in 1518. It was not until 1540 that he granted the Company of Barber/Surgeons (ancestor of the Royal College of Surgeons) its separate charter. In the same year, the English monarch established the Regius Professorship of Physic at the University of Cambridge. Newer universities would probably describe such an academic as a professor of internal medicine. Hence, in the 16th century, physic meant roughly what internal medicine does now.

Currently, a specialist physician in the United States may be described as an internist. Another term, hospitalist, was introduced in 1996, to describe US specialists in internal medicine who work largely or exclusively in hospitals. Such 'hospitalists' now make up about 19% of all US  general internists, who are often called general physicians in Commonwealth countries.

This original use, as distinct from surgeon, is common in most of the world including the United Kingdom and other Commonwealth countries (such as Australia, Bangladesh, India, New Zealand, Pakistan, South Africa, Sri Lanka, Zimbabwe), as well as in places as diverse as Brazil, Hong Kong, Indonesia, Japan, Ireland, and Taiwan. In such places, the more general English terms doctor or medical practitioner are prevalent, describing any practitioner of medicine (whom an American would likely call a physician, in the broad sense). In Commonwealth countries, specialist pediatricians and geriatricians are also described as specialist physicians who have sub-specialized by age of patient rather than by organ system.

Physician and surgeon
Around the world, the combined term "Physician and Surgeon" is used to describe either a general practitioner or any medical practitioner irrespective of specialty. This usage still shows the original meaning of physician and preserves the old difference between a physician, as a practitioner of physic, and a surgeon. The term may be used by state medical boards in the United States of America, and by equivalent bodies in provinces of Canada, to describe any medical practitioner.

Chiropractors
Though generally considered doctors but not physicians, chiropractors use the physician title in some countries.

In the United States, practitioners with a Doctor of Chiropractic (DC) have been added to the list of recognized physicians by the Joint Commission on Accreditation of Healthcare Organizations. This change does not affect or alter any health care practitioner’s license or scope of practice. Some medical organizations have criticized the addition of chiropractic to the definition of physician.

In Switzerland, students since 2008 have the option of studying in the University of Zurich medical school earning a Bachelor of Medicine (with a focus on chiropractic) and a Masters in Chiropractic Medicine. By attending medical school they become "physicians" in the more traditional sense. Swiss chiropractors have been found to treat conditions in a similar way to their international counterparts while enjoying enjoy a greater number of medical specialist referrals.

North America
In the United States and Canada, the term physician describes all medical practitioners holding a professional medical degree. The American Medical Association, established in 1847, as well as the American Osteopathic Association, founded in 1897, both currently use the term physician to describe members. However, the American College of Physicians, established in 1915, does not: its title uses physician in its original sense.

Other designations
A physician in the United States who is a Doctor of Osteopathic Medicine (DO) is a graduate of an osteopathic medical school and may obtain unlimited practicing rights in all specialties and subspecialties of medicine. United States osteopathic medical schools have a curriculum almost identical to MD schools with the addition of osteopathic manipulative medicine, which focuses on extra instruction in the musculoskeletal system.

Graduates of osteopathic medical schools in the United States should not be confused with osteopaths, who are found in the European and Commonwealth nations. Osteopaths in this capacity are not medical school graduates and as such have a very limited alternative care role that is more aligned with being a chiropractor than with being a physician and health care provider.

Also in the United States, the American Podiatric Medical Association (APMA) defines podiatrists as physicians and surgeons that fall under the department of surgery in hospitals.

In many countries such as India, Bahamas and Jamaica, BHMS (homeopathic) and BAMS (ayurvedic) degree holders may register as a medical practitioner in their respective field and are referred to as physicians.

Nurse practitioners (NPs) in the United States are classified as mid-level advance practice registered nurses. Nurse practitioners may perform work similar to that of primary care physicians, but are educated in nursing models rather than the medical models of physicians. The scope of practice for a nurse practitioner in the United States is defined by individual state boards of registration in nursing, as opposed to individual state boards of registration in medicine as governs physicians.

Physician assistants are also classified as mid-level advance practice clinicians. PA's have a similar scope of practice as nurse practitioners, but are educated in the medical model and are regulated by state boards of registration in medicine.

Biomedicine
Within Western culture and over recent centuries, conventional Western medicine has become increasingly based on scientific reductionism and materialism. This style of medicine is now dominant throughout the industrialized world, and is often termed Biomedicine by medical anthropologists. Biomedicine "formulates the human body and disease in a culturally distinctive pattern", and is a world view learnt by medical students. Within this tradition, the medical model is a term for the complete "set of procedures in which all doctors are trained" (R. D. Laing, 1972), including mental attitudes. A particularly clear expression of this world view, currently dominant among conventional physicians, is evidence-based medicine. Within conventional Western medicine, most physicians still pay heed to their ancient traditions: The critical sense and sceptical attitude of the citation of medicine from the shackles of priestcraft and of caste; secondly, the conception of medicine as an art based on accurate observation, and as a science, an integral part of the science of man and of nature; thirdly, the high moral ideals, expressed in that most "memorable of human documents" (Gomperz), the Hippocratic oath; and fourthly, the conception and realization of medicine as the profession of a cultivated gentleman.

— Sir William Osler, Chauvanism in Medicine (1902)

In this Western tradition, physicians are considered to be members of a learned profession, and enjoy high social status, often combined with expectations of a high and stable income and job security. However, medical practitioners often work long and inflexible hours, with shifts at unsociable times. Their high status is partly from their extensive training requirements, and also because of their occupation's special ethical and legal duties. The term traditionally used by physicians to describe a person seeking their help is the word patient (although one who visits a physician for a routine check-up may also be so described). This word patient is an ancient reminder of medical duty, as it originally meant 'one who suffers'. The English noun comes from the Latin word patiens, the present participle of the deponent verb, patior, meaning 'I am suffering,' and akin to the Greek verb πάσχειν (= paskhein, to suffer) and its cognate noun πάθος (= pathos).

Physicians in the original, narrow sense (specialist physicians or internists—see above) are commonly members or fellows of professional organizations, such as the American College of Physicians or the Royal College of Physicians in the United Kingdom, and such hard-won membership is itself a mark of status.

Complementary and alternative medicine
While contemporary biomedicine has distanced itself from its ancient roots in religion and magic, many forms of traditional medicine and complementary and alternative medicine (CAM) continue to espouse vitalism in various guises: 'As long as life had its own secret properties, it was possible to have sciences and medicines based on those properties' (Grossinger 1980). The US National Center for Complementary and Alternative Medicine (NCCAM) classifies CAM therapies into five categories or domains, including: alternative medical systems, or complete systems of therapy and practice; mind-body interventions, or techniques designed to facilitate the mind's effect on bodily functions and symptoms; biologically based systems including herbalism; and manipulative and body-based methods such as chiropractic and massage therapy.

In considering these alternate traditions that differ from biomedicine (see above), medical anthropologists emphasize that all ways of thinking about health and disease have a significant cultural content, including conventional western medicine.

Ayurveda, Unani medicine and Homeopathy are popular complementary systems of medicine. They are included in national system of medicine in many countries including India and neighbouring countries. The practitioners of these medicine in these countries are generally referred to as Ved, Hakim and homeopathic doctor/homeopath/homeopathic physician, respectively.

Physicians' own health
Some commentators have argued that physicians have duties to serve as role models for the general public in matters of health, for example by not smoking cigarettes. Indeed, in most western nations relatively few physicians smoke, and their professional knowledge does appear to have a beneficial effect on their health and lifestyle. According to a study of male physicians, life expectancy is slightly higher for physicians (73.0 years for white and 68.7 for black) than lawyers or many other highly educated professionals. Causes of death less likely in physicians than the general population include respiratory disease (including pneumonia, pneumoconioses, COPD, but excluding emphysema and other chronic airway obstruction), alcohol-related deaths, rectosigmoidal and anal cancers, and bacterial diseases.

However ... "By medicine life may be prolong'd, yet death will seize the Doctor too" (Cymbeline). Physicians do experience exposure to occupational hazards, and there is a well-known aphorism that "doctors make the worst patients". Causes of death that are shown to be higher in the physician population include suicide and self-inflicted injury, drug-related causes, traffic accidents, and cerebrovascular and ischaemic heart disease.

Education and training
Medical education and career pathways for doctors vary considerably across the world.

All medical practitioners
In all developed countries, entry-level medical education programs are tertiary-level courses, undertaken at a medical school attached to a university. Depending on jurisdiction and university, entry may follow directly from secondary school or require pre-requisite undergraduate education. The former commonly takes five or six years to complete. Programs that require previous undergraduate education (typically a three or four year degree, often in Science) are usually four or five years in length. Hence, gaining a basic medical degree may typically take from five to eight years, depending on jurisdiction and university.

Following completion of entry-level training, newly graduated medical practitioners are often required to undertake a period of supervised practice before full registration is granted, typically one or two years. This may be referred to as "internship", "Foundation" years in the UK, or "conditional registration". Some jurisdictions, including the United States, require residencies for practice.

Medical practitioners hold a medical degree specific to the university from which they graduated. This degree qualifies the medical practitioner to become licensed or registered under the laws of that particular country, and sometimes of several countries, subject to requirements for internship or conditional registration.

Specialists in internal medicine
In some jurisdictions, specialty training is begun immediately following completion of entry-level training, or even before. In other jurisdictions, junior medical doctors must undertake generalist (un-streamed) training for one or more years before commencing specialization. Hence, depending on jurisdiction, a specialist physician (internist) often does not achieve recognition as a specialist until twelve or more years after commencing basic medical training—five to eight years at university to obtain a basic medical qualification, and up to another nine years to become a specialist.

Regulation
In most jurisdictions, physicians (in either sense of the word) need government permission to practice. Such permission is intended to promote public safety, and often to protect the public purse, as medical care is commonly subsidized by national governments.

In some jurisdictions (e.g. Singapore), it is common for physicians to inflate their qualifications with the title "Dr" in correspondence or namecards, even if their qualifications are limited to a basic (e.g. bachelor level) degree. In other countries (e.g. Germany), only physicians holding an academic doctorate may call themselves doctor.

All medical practitioners
Among the English-speaking countries, this process is known either as licensure as in the United States, or as registration in the United Kingdom, other Commonwealth countries, and Ireland. Synonyms in use elsewhere include colegiación in Spain, ishi menkyo in Japan, autorisasjon in Norway, Approbation in Germany, and "άδεια εργασίας" in Greece. In France, Italy and Portugal, civilian physicians must be members of the Order of Physicians to practice medicine.

In some countries, including the United Kingdom and Ireland, the profession largely regulates itself, with the government affirming the regulating body's authority. The best known example of this is probably the General Medical Council of Britain. In all countries, the regulating authorities will revoke permission to practice in cases of malpractice or serious misconduct.

In the large English-speaking federations (United States, Canada, Australia), the licensing or registration of medical practitioners is done at a state or provincial level or nationally as in New Zealand. Australian states usually have a "Medical Board" which has now been replaced by the Australian Health Practitioner Regulatory Authority (AHPRA) in most states, while Canadian provinces usually have a "College of Physicians and Surgeons." All American states have an agency which is usually called the "Medical Board", although there are alternate names such as "Board of Medicine," "Board of Medical Examiners", "Board of Medical Licensure", "Board of Healing Arts" or some other variation. After graduating from a first-professional school, physicians who wish to practice in the U.S. usually take standardized exams, such as the USMLE for MDs and DOs or the COMLEX-USA for DOs, which is not available to MDs. (although most DOs in the U.S. also take the USMLE exams and undergo the same residency training as MDs).

Specialists in internal medicine
Most countries have some method of officially recognizing specialist qualifications in all branches of medicine, including internal medicine. Sometimes, this aims to promote public safety by restricting the use of hazardous treatments. Other reasons for regulating specialists may include standardization of recognition for hospital employment and restriction on which practitioners are entitled to receive higher insurance payments for specialist services.

Performance and professionalism supervision
The issue of medical errors, drug abuse, and other issues in physician professional behavior received significant attention across the world, particularly following a critical 2000 report which "arguably launched" the patient-safety movement. In the U.S., as of 2006 there were few organizations which systematically monitored performance. In the U.S. only the Department of Veterans Affairs randomly drug tests, in contrast to drug testing practices for other professions which have a major impact on public welfare. Licensing boards at the U.S. state level depend upon continuing education to maintain competence. Through the utilization of the National Practitioner Data Bank, Healthcare Integrity Protection Databank, Federation of State Medical Boards Disciplinary Report, and American Medical Association Physician Profile Service, the 67 State Medical Boards (MD/DO) continually self report any Adverse/Disciplinary Actions taken against a licensed Physician in order that the other Medical Boards in which the Physician holds or is applying for a Medical License will be properly notified so that corrective, reciprocal action can be taken against the offending physician. In Europe, as of 2009 the health systems are governed according to various national laws, and can also vary according to regional differences similar to the United States.