If you're looking for a new doctor in Massachusetts, use this website from the Massachusetts Board of Registration in Medicine.  You can search by name, city, specialty and/or hospital affiliation.  These Physician Profiles provide tons of information on doctors practising in Massachusetts, including:

• Education
• Training
• Medical Specialties
• Professional demographics, including business address, insurance plan and hospital affiliations, and available translation services.
• Professional or community awards received
• Research or publications by the physician
• Malpractice claims paid in the past ten years
• Hospital discipline in the past ten years
• Criminal convictions in the past ten years
• Disciplinary actions of the Massachusetts Board of Registration in Medicine in the past ten years