Henry Powderly

Program cements two payment tracks and "pick your pace" approach while setting aside money to support small practices.

Humana saw enrollment in plans rated four stars or higher fall to 37 percent compared to 71 percent in the prior year's ratings, pushing the company's stock down close to 5 percent in morning trading.

Overall, healthcare has added 445,000 jobs in the past 12 months.

Clinician hiring tied to population health programs also threatens to drive up expenses, the credit rating agency says.

MedPAC's analysis found that one-star hospitals saw an average of 78 percent of admissions through emergency departments while five-star hospitals were closer to 36 percent.

In Nov. 2012, Women & Infants reported a data breach after discovering that two backup tapes including unencrypted personal health information on 14,000 people went missing.

Hospitals added 10,700 jobs while ambulatory services added 12,900.

Healthcare affordability, the future of Medicare on top of mind as voters weigh healthcare issues ahead of the November election.

Top among them was NewYork-Presbyterian Hospital, which received $16 million.

Though CMS finalized a 90-day period for 2015, many providers were not able to take advantage of that flexibility and instead had to rely on hardship exemptions to avoid penalties.