Their web site has an easy to use way to find out where and when a doctor was trained.
Doctors normally have four to five years of residency training after graduation from medical school.
They are not considered to be fully trained until they complete their residency. However, they may obtain a license from the state after the first year of residency. Be aware that any doctor who has not been out of medical school for more than five years may still be in training. During the training period they may make many mistakes that never lead either to medical board discipline or to a malpractice lawsuit. The site also includes board certification.