Despite worries about post-Affordable Care Act costs for employers rising, worksite healthcare seems to be a growing trend, according to surveys from both Towers Watson and the National Business Group on Health.

“We found it interesting that there is a lot of support for onsite health centers,” says Allan Khoury, a senior health management consultant for Towers Watson. “Senior managers were satisfied with the concept and they remain satisfied—even a bit more satisfied—as time goes on.”

According to Khoury, about a 30% of companies with more than 1,000 employees have some kind of worksite health care, whether that is defined as a single nurse or a full health center with multiple doctors and nurse-practitioners. More than 50% of respondents in Towers Watson's recent survey regarding onsite health centers said they currently offer or plan to offer health services to employees' dependents. In the National Business Group on Health's August 2012 survey on large employer health plans, 46% of respondents maintained onsite health clinics, and 9% more were considering implementing them.