- Medicare Halts Release Of Much-Anticipated Data ProPublica by Charles Ornstein—In the past few years, many seniors and disabled people have eschewed traditional Medicare coverage to enroll in privately run health plans paid for by Medicare, which often come with lower out-of-pocket costs and some enhanced benefits. These so-called Medicare Advantage plans now enroll more than a third of the 58 million beneficiaries in the Medicare program, a share that grows by the month. But little is known about the care delivered to these people, from how many services they get to which doctors treat them to whether taxpayer money is being well-spent or misused. The government has collected data on patients' diagnoses and the services they receive since 2012 and began using it last year to help calculate payments to private insurers, which run the Medicare Advantage plans. But it has never made that data public. Officials at the Centers for Medicare and Medicaid Services have been validating the accuracy of the data and, in recent months, were preparing to release it to researchers. The grand unveiling of the new data was scheduled to take place at the annual research meeting of AcademyHealth, a festival of health wonkery, which just concluded in New Orleans. But at the last minute, the session was canceled.