1) 42% of Medicare providers purchased EHR systems certified for meaningful use stage 2 requirements in 2014. 2) Of providers switching from uncertified to certified EHRs, around 85% switched to cloud-based systems like athenahealth, Acumen, and Practice Fusion. 3) A predictive model found modular EHRs, later adoption, and certain states made certification more likely, while specialty made no difference.