The Obama administration announced on Wednesday that it will for the first time reveal how much Medicare pays individual doctors for medical services and procedures, including MRIs and CT scans. The U.S. Department of Health and Human Services will release on April 9 massive amounts of data on more than 880,000 individual doctors and other health professionals in all 50 states who participate in Medicare's Part B fee-for-service program, which covers physician fees and out-patient services. The information, which includes doctors' names and addresses and summaries of their services, had been barred from public release by court injunction for more than 30 years until last May when a federal judge in Miami lifted the ban in response to a motion by Dow Jones.