Locum Leaders, an Alpharetta, Ga.-based locum tenens provider, was acquired by holding company OGH LLC, whose principal shareholder is New York-based private equity firm Welsh, Carson, Anderson and Stowe. The deal was announced by CHILDS Advisory Partners, who advised Locum Leaders.

The deal closed May 1; terms were not disclosed.

Locum Leaders will keep its brand. The company’s senior management team will remain intact and lead OGH’s locum tenens effort. “They look at it as a platform for them in the locum tenens space,” said Dave Phillips, director at CHILDS Advisory Partners.

“The U.S. health care system is undergoing a significant expansion with the implementation of the Affordable Care Act,” said Kevin Clark, CEO of OGH. “As a result, hospital executives are experiencing an acceleration of labor shortages of skilled healthcare professionals while trying to effectively manage patient care and maintain positive operating margins.”

In addition to Locum Leaders, Wilton, Conn.-based OGH’s staffing businesses include Onward Healthcare, Onward MD, Onward Search and Onward ITG.

OGH also owns Medefis, a healthcare vendor management system, and online recruiting platform Recruitics.