(Copied from kcom.edu...link provided by Soopa on Planet Ross)

To become an osteopathic physician, an individual must be a graduate of one of 19 osteopathic medical schools. Each school is accredited by the Bureau of Professional Education of the American Osteopathic Association. This accreditation is recognized by the U.S. Department of Education.

Medical Education
The osteopathic curriculum involves four years of academic study. Reflecting the osteopathic philosophy, the curriculum emphasizes preventive medicine and holistic patient care. Medical students learn to use osteopathic principles and techniques for the diagnosis and treatment of disease.

Postgraduate Medical Education
After completing osteopathic medical college, D.O.s serve a one-year internship, gaining hands-on experience in internal medicine, obstetrics/gynecology, general practice, pediatrics, and surgery. This experience ensures that osteopathic physicians are first trained as primary care physicians even if they plan to pursue a specialty. The internship provides every D.O. with the opportunity to see and treat every patient as a whole person.
After the one-year internship, D.O.s enroll in a residency program of their choice. A residency typically requires from two to six years of additional training, depending on their chosen area of medicine.

All physicians (both D.O.s and M.D.s) must pass a national medical board examination in order to obtain a license. D.O.s are eligible to take the Comprehensive Osteopathic Medical Licensing Examination (COMLEX) and the United States Medical Licensing Exam (USMLE). There are three parts to each examination which are taken throughout the medical education experience. Additionally, all physicians must pass a state licensing exam. Each state board sets its own requirements and then issues the license for the physician to practice in that state.

Continuing Medical Education
Continuing Osteopathic Medical Education is a lifelong commitment to learning by osteopathic physicians in full recognition of the fact that the study of medicine does not end with graduation from medical school. The American Osteopathic Association requires its members to complete a specified number of continuing medical education credits during each three-year period in order to maintain membership.