Elisabeth Rosenthal is a healthcare writer (and physician) who has published extensively in the New York Times and Kaiser Health News. She recently published "An American Sickness: How Healthcare Became Big Business." It's available on Amazon and other sites.
It's a great read that anyone using, buying or arranging healthcare should get.
(And remember, if you do make purchases on Amazon, help support WellOK by going to smile.amazon.com and select "WellOK" as the non-profit you support. It won't cost you a penny extra!)