A physician, medical practitioner, medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the study, diagnosis, prognosis and treatment of disease, injury, and other physical and mental impairments. Physicians may focus their practice on certain disease categories, types of patients, and methods of treatment—known as specialities—or they may assume responsibility for the provision of continuing and comprehensive medical care to individuals, families, and communities—known as general practice. 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.
Internal medicine, also known as general internal medicine in Commonwealth nations, is a medical specialty for medical doctors focused on the prevention, diagnosis, and treatment of internal diseases in adults. Medical practitioners of internal medicine are referred to as internists, or physicians in Commonwealth nations. Internists possess specialized skills in managing patients with undifferentiated or multi-system disease processes. They provide care to both hospitalized (inpatient) and ambulatory (outpatient) patients and often contribute significantly to teaching and research. Internists are qualified physicians who have undergone postgraduate training in internal medicine, and should not be confused with "interns”, a term commonly used for a medical doctor who has obtained a medical degree but does not yet have a license to practice medicine unsupervised.
Hospital medicine is a medical specialty that exists in some countries as a branch of family medicine or internal medicine, dealing with the care of acutely ill hospitalized patients. Physicians whose primary professional focus is caring for hospitalized patients only while they are in the hospital are called hospitalists. Originating in the United States, this type of medical practice has extended into Australia and Canada. The vast majority of physicians who refer to themselves as hospitalists focus their practice upon hospitalized patients. Hospitalists are not necessarily required to have separate board certification in hospital medicine.
Against medical advice (AMA), sometimes known as discharge against medical advice (DAMA), is a term used in health care institutions when a patient leaves a hospital against the advice of their doctor. While leaving before a medically specified endpoint may not promote the patient's health above their other values, there is widespread ethical and legal consensus that competent patients are entitled to decline recommended treatment.
The American College of Cardiology (ACC), based in Washington, D.C., is a nonprofit medical association established in 1949. It bestows credentials upon cardiovascular specialists who meet its qualifications. Education is a core component of the college, which is also active in the formulation of health policy and the support of cardiovascular research.
The American College of Physicians (ACP) is a Philadelphia-based national organization of internists, who specialize in the diagnosis, treatment, and care of adults. With 161,000 members, ACP is the largest medical-specialty organization and second-largest physician group in the United States, after the American Medical Association. Its flagship journal, the Annals of Internal Medicine, is considered one of the five top medical journals in the United States and Britain.
Outpatient surgery, also known as ambulatory surgery, day surgery, day case surgery, or same-day surgery, is surgery that does not require an overnight hospital stay. The term “outpatient” arises from the fact that surgery patients may enter and leave the facility on the same day. The advantages of outpatient surgery over inpatient surgery include greater convenience and reduced costs.
In the healthcare industry, pay for performance (P4P), also known as "value-based purchasing", is a payment model that offers financial incentives to physicians, hospitals, medical groups, and other healthcare providers for meeting certain performance measures. Clinical outcomes, such as longer survival, are difficult to measure, so pay for performance systems usually evaluate process quality and efficiency, such as measuring blood pressure, lowering blood pressure, or counseling patients to stop smoking. This model also penalizes health care providers for poor outcomes, medical errors, or increased costs. Integrated delivery systems where insurers and providers share in the cost are intended to help align incentives for value-based care.
Internal medicine-pediatrics, or med-peds, is a medical specialty in which doctors train to be board certified in both internal medicine and pediatrics. A residency program in med-peds is four years in length, contrasted with three years for internal medicine or pediatrics alone. Upon completion of a med-peds residency, a doctor can practice in the areas of internal medicine, pediatrics or can complete a fellowship program to further specialize in an internal medicine or pediatrics sub-field.
A nocturnist is a hospital-based hospitalist who only works overnight. Most nocturnists are trained in internal medicine or family medicine. However, there are nocturnists trained in other specialties, such as pediatrics. The main role of a nocturnist is to admit patients into the hospital from an emergency department, and to care for previously admitted inpatients through the night. Nocturnists differ from on-call doctors in that they work exclusively at night, rather than being on-call and also working daytime shifts. As of 2020, about half of teaching hospitals in the United States staff nocturnists, and a 2018 study reporting 76.1% of adults-only hospitals, 27.6% of children-only hospitals, and 68.2% of combined hospitals had nocturnists.
Transitional care refers to the coordination and continuity of health care during a movement from one healthcare setting to either another or to home, called care transition, between health care practitioners and settings as their condition and care needs change during the course of a chronic or acute illness. Older adults who suffer from a variety of health conditions often need health care services in different settings to meet their many needs. For young people the focus is on moving successfully from child to adult health services.
Maintenance of Certification (MOC) is a recently implemented and controversial process of physician certification maintenance through one of the 24 approved medical specialty boards of the American Board of Medical Specialties (ABMS) and the 18 approved medical specialty boards of the American Osteopathic Association (AOA). The MOC process is controversial within the medical community, with proponents claiming that it is a voluntary program that improves physician knowledge and demonstrates a commitment to lifelong learning. Critics claim that MOC is an expensive, burdensome, involuntary and clinically irrelevant process that has been created primarily as a money-making scheme for the ABMS and the AOA.
Inpatient care is the care of patients whose condition requires admission to a hospital. Progress in modern medicine and the advent of comprehensive out-patient clinics ensure that patients are only admitted to a hospital when they are extremely ill or have severe physical trauma.
A hospital is a healthcare institution providing patient treatment with specialized health science and auxiliary healthcare staff and medical equipment. The best-known type of hospital is the general hospital, which typically has an emergency department to treat urgent health problems ranging from fire and accident victims to a sudden illness. A district hospital typically is the major health care facility in its region, with many beds for intensive care and additional beds for patients who need long-term care. Specialized hospitals include trauma centers, rehabilitation hospitals, children's hospitals, seniors' (geriatric) hospitals, and hospitals for dealing with specific medical needs such as psychiatric treatment and certain disease categories. Specialized hospitals can help reduce health care costs compared to general hospitals. Hospitals are classified as general, specialty, or government depending on the sources of income received.
The American Board of Hospital Medicine (ABHM) is a Member Board of the American Board of Physician Specialties (ABPS), the nation's third largest physician multispecialty certifying organization and was founded in 2009. The ABHM is North America's first and only board of certification devoted exclusively to hospital medicine founded by hospitalists and governed by hospitalists.
T. Brian Callister is an American physician who works on care transitions. He is a critic of assisted suicide and euthanasia. Callister was the National Medical Director, Chief Medical Officer and Senior Physician Executive at The LifeCare Family of Hospitals, a system of specialty care hospitals, from 2004 – 2016. He was an academic hospitalist and associate professor of internal medicine in Reno, Nevada. and is the governor-elect of Nevada for the American College of Physicians. Much of his work is focused on healthcare policy, quality improvement, and end-of-life issues.
Post-Hospitalist Medicine is the discipline concerned with the medical care of patients residing in Post-Acute, Long-Term Care, Rehabilitation and Assisted Living Facilities. The Physicians whose primary professional focus is the post-hospital medical care of these patients are called Post-Hospitalists.
An obstetric hospitalist is an obstetrician and gynaecologist physician who is either employed by a hospital or a physician practice and whose duties include providing care for laboring patients and managing obstetric emergencies. Some obstetrics hospitalists also have responsibilities including resident and medical student teaching; providing backup support for family practitioners and nurse midwives, assisting private physicians with surgery, assuming care for ob-gyn patients unassigned to a physician and providing vacation coverage for the private practicing physician.
Vineet M. Arora is an American medical researcher who is the Herbert T. Abelson Professor of Medicine and Dean for Medical Education at the University of Chicago Pritzker School of Medicine. She is a Fellow of the National Academy of Medicine. Her research considers clinical medicine and medical education, with a focus on the improvement of the quality of care in teaching hospitals.
Samir S. Shah is an American pediatric hospital medicine and pediatric infectious disease physician. Shah's research has focused on improved management of patients with common childhood infections, particularly pneumonia and meningitis.
