From a Report by Anna Gorman in Kaiser Health News:
"Like many professionals, physicians take time off to raise children, care for sick family members or to recover from their own illnesses. Some want to return from retirement or switch from non-clinical jobs back to seeing patients. But picking up where they left off is more difficult in medicine than in most careers.
In medicine, change occurs quickly. Drugs, devices and surgical techniques that were standard a decade ago may now be obsolete. Or a returning doctor’s skills may simply be rusty...
After extended leaves, doctors must convince medical boards to reissue their licenses, hospitals to grant admitting privileges and malpractice insurers to provide coverage. Only a handful of programs around the country are set up to help physicians brush up on their skills, and they can cost doctors thousands of dollars."