According to projections in a recent report,

...in 2014, a man would need $64,000 in savings and a woman would need $83,000 if each had a goal of having a 50% chance of having enough money saved to cover health care expenses in retirement.

Source: "Needed Savings for Health Care in Retirement Continue to Fall," Employee Benefit Research Institute (EBRI) Press Release, October 28, 2014, http://www.ebri.org/pdf/PR1097.HlthSvgs.28Oct14.pdf