The PriceWaterhouseCoopers team questioned 700 companies in 30 industries for the report.

About 60 percent of Americans under the age of 65 get health insurance through an employer. Health benefits are often a major part of any employee compensation package. Most employers, 63 percent, offer a preferred provider organization or PPO, the survey found. And many have raised the deductible, with 43 percent having a deductible of $400 or more, compared to 25 percent in 2009.

Two-thirds of companies said they planned to expand wellness programs and 63 percent already offer health risk questionnaires, according to the report.

But fewer than half -- 39 percent -- offered weight management programs and just 27 percent provided nutritional training. More than two-thirds of Americans are overweight or obese, a cause of many of the most expensive health conditions such as heart disease, diabetes and cancer.

Employers blame shifting of Medicare costs for much of the anticipated increase in their healthcare costs, the report found.