State professional licensing boards can provide information on whether doctors are licensed within a specific state, according to USA.gov. State medical boards can also provide information regarding any disciplinary actions against a physician.
Many state health departments let people file complaints against doctors and maintain a database of these complaints through offices dedicated to tracking professional misconduct, explains the New York State Department of Health. In some states, government offices provide information about doctors' medical education, professional awards and the health plans with which doctors are affiliated. Questions about board certification of specific doctors should be directed to the American Board of Medical Specialties.