A number of large companies are opening on-site medical clinics as a way to cut growing healthcare costs, according to a published report.

The employers, which include Toyota, Sprint Nextel and Pepsi, are trying to reduce medical costs and increase employee productivity by having workers conduct healthcare visits on-site as much as possible.

David Beech, a healthcare specialist at Watson Wyatt, told the New York Times that it's easy to see reduced referrals to hospital emergency rooms and specialist physicians, and a shift away from hospital outpatient doctors to the on-site clinics.

Earlier this month, Toyota opened a 20,000-square-foot medical center in San Antonio that has two-full time doctors, a lab for bloods tests, and an X-ray center, the newspaper reports.

The clinics can also result in lower out-of-pocket expenses and faster medical care for employees, according to the report.