There are a lot of good blogs available...I track a couple dozen, and least lightly, via the web app FEEDLY, have a few real favorites, and there are probably other good ones I'm not aware of.
Louis Jacques MD, who until early 2014 held the very important position of head of the Coverage and Analysis Group at the Medicare agency, is now a national-class blogger with a steady stream of new ideas. In March 2014, he stepped down from his agency position to join the health policy consulting group ADVI.
Dr. Jacques' blog is called Healthcare Insighter and is worth tracking.