After a doctor completes medical school and is licensed to practice medicine, the physician may pursue a rigorous 3 year training program in Internal Medicine.
The American Board of Medical Specialties recognizes Family Medicine as a distinct discipline requiring an additional three years of training for doctors who wish to become Board Certified in this field. Family Medicine doctors are usually primary care providers (PCPs) [formerly general practitioners, or GPs] for the entire family.
Pediatric emergency physicians specialize in the treatment of children and teens with acute illnesses and injuries. After completing medical training, the physician receives at least three more years of training in a pediatric or emergency-medicine residency.