Atul Gawande's four books - Being Mortal, Checklists, Better and Complications. Great insight into the world of a surgeon & the realities of surgery - as well as the treatment of end of life care & medical decision making. Highly recommended.
Like Wilderness, I've read all of these books and recommend them as superbly written observations about
medicine and life.
I'm currently reading Handing One Another Along
by Robert Coles, on the recommendation of David Brooks, the New York Times columnist.