Doctor of Medicine

Doctor of Medicine (MD, from the Latin Medicinae Doctor meaning "Teacher of Medicine") is a doctoral degree for physicians. The degree is granted by medical schools. It is a professional doctorate / first professional degree (qualifying degree) in some countries, including the United States and Canada, although training is entered after obtaining from 90 to 120 credit hours of university level work (see second entry degree) and in most cases after having obtained a Bachelors Degree. In other countries, such as the United Kingdom, Germany, Sri Lanka and India, the MD is an advanced academic research degree similar to a PhD or a higher doctorate. In Britain, Ireland, and many Commonwealth nations, the qualifying medical degree is instead the Bachelor of Medicine, Bachelor of Surgery (MBChB, BM BCh, MB BCh, MBBS, BMBS, BM) and is considered equivalent to the MD and DO degrees in the U.S. system.

History of the medical degree
According to Sir John Bagot Glubb, Syed Faride and S. M. Imamuddin, the first medical schools to issue academic degrees and diplomas were the teaching Bimaristan (Hospitals) of the medieval Islamic world. The first of these institutions was opened in Baghdad during the time of Harun al-Rashid. They then appeared in Egypt from 872 and then in Islamic Spain, Persia and the Maghreb thereafter. Physicians and surgeons at these hospital-universities gave lectures on Medicine to medical students and then a medical diploma or degree was issued to students who were qualified to be practicing physicians.

According to Douglas Guthrie, who bases his account on L Thorndike, medical men were first called "Doctor" at the Medical School of Salerno. He states that the Emperor Frederick II decreed in 1221 that no one should practice medicine until he had been publicly examined and approved by the masters of Salerno. The course lasted 5 years, and to start one had to be 21 years old and show proof of legitimacy and of three years study of logic. The course was followed by a year of supervised practice. After the laureation ceremony the practitioners could call themselves "magister" or "doctor."

The first medical schools that granted the MD degree were Penn, Columbia, Harvard, Maryland, and McGill These first few North American medical schools that were established were (for the most part) founded by physicians and surgeons who had been trained in England and Scotland. University medical education in England culminated with the MB qualification, and in Scotland the MD, until in the mid-19th century the public bodies who regulated medical practice at the time required practitioners in Scotland as well as England to hold the dual Bachelor of Medicine and Bachelor of Surgery degrees (MB BS/MBChB/MB BChir/BM BCh etc.). North American Medical schools switched to the tradition of the Ancient universities of Scotland and began granting the M.D. title rather than the MB beginning in the late 18th century. The Columbia University College of Physicians and Surgeons in New York (which at the time was referred to as King's College of Medicine) was the first American University to grant the MD degree instead of the MB.

Within the United States, MDs are awarded by medical schools accredited by the Liaison Committee on Medical Education (LCME), an independent body sponsored by the Association of American Medical Colleges and the American Medical Association (AMA).

Admission to medical schools in the United States is highly competitive, with about 17,800 out of approximately 47,000 applicants receiving at least one acceptance to any medical school in recent application years. Before entering medical school, students must complete a four year undergraduate degree and take the Medical College Admission Test (MCAT). Before graduating from a medical school and achieving the degree of Medical Doctor, most schools require their students to take the United States Medical Licensing Examination (USMLE) Step 1 and both the Clinical Knowledge and Clinical Skills parts of Step 2. The M.D. degree is typically earned in four years. Following the awarding of the MD, physicians who wish to practice in the United States are required to complete at least one internship year (PGY-1) and pass the USMLE Step 3. In order to receive Board Eligible or Board Accredited status in a specialty of medicine such as general surgery or internal medicine, then undergo additional specialized training in the form of a residency. Those who wish to further specialize in areas such as cardiology or interventional radiology then complete a fellowship. Depending upon the physician's chosen field, residencies and fellowships involve an additional three to eight years of training after obtaining the M.D. This can be lengthened with additional research years, which can last one, two, or more years. The Doctor of Osteopathic Medicine or D.O. degree is the only other legal and professional equivalent to the M.D. degree in the United States and some parts of Canada. The major differences between the M.D. and the DO degrees lie in the distinctive osteopathic philosophy and osteopathic manipulative treatment (OMT). In Canada, the M.D. is the basic medical degree required to practice medicine. McGill University Faculty of Medicine is the only medical school in Canada to award M.D., C.M. degrees (abbreviated MDCM). MDCM is from the Latin "Doctorem Medicinae et Chirurgiae Magistrum" meaning "Doctor of Medicine and Master of Surgery".

Even though the M.D. / D.O. is a first professional degree and not a doctorate of research (i.e. Ph.D.), many holders of the M.D. or D.O. degree conduct clinical and basic scientific research and publish in peer-reviewed journals during training and after graduation. Medical Scientist Training Programs (MSTPs) are offered at many universities, which are a combined medical degree and Ph.D.. Some MDs and DOs choose a research career and receive funding from the NIH as well as other sources such as the Howard Hughes Medical Institute. A few even go on to become Nobel Laureates.