A new study has found that the cost of health care is the No. #1 financial concern for retired Americans. The report from eHealth is based on a survey of Americans age 60 through 70, including both retired workers and those close to retirement.

The research looked closely at Medicare options for seniors and how those who are retired or near retirement are thinking about that program. Experts with eHealth and Retirable, which also sponsored the survey, said that Medicare recipients often seek out the lowest premiums, but that they should be aware of possible health care needs and think about out-of-pocket costs as well.

"Selecting the right Medicare health plan for your personal needs and budget is an incredibly important financial consideration in retirement," said eHealth CEO Fran Soistman. "Affordable premiums are key, but it's also important to look beyond premiums. By choosing a Medicare insurance plan that properly aligns with your personal health care needs, you can minimize or avoid unnecessary out-of-pocket costs."