AMA Doctor-Finder : The American Medical Association's Doctor-Finder lists background information including doctors' specialties, education, and board certification.
HealthGrades.com : HealthGrades.com, Inc., offers extensive report cards on doctors, hospitals, health plans and nursing homes nationwide (the reports cost between $3-7). State and national disciplinary actions are listed along with other background information.
Licensing Boards : The Administrators in Medicine site provides searches of Maryland's and Virginia's state government licensing board information on specific doctors. This includes licensing background, malpractice, criminal conviction and disciplinary information for physicians and other health care providers.
Questionable Doctors : Public Citizen's Questionable Doctors database allows you to search for disciplinary action records for doctors in 42 states, including Washington D.C., Maryland, and Virginia. The search is free, though the reports are sold at the price of $30 for 10 reports.
Questionable Therapies : Quackwatch, run by Dr. Stephen Barrett, helps patients examine and debunk questionable medical therapies from acupuncture to wild yam cream.