Founded in Southern California in 1997, Cogent is one of the nation’s leading hospitalist companies when it relocates to Brentwood under its renowned leader, Dr. Ron Greeno.

Former HCA executive Gene Fleming is tapped to lead the company, which goes on to acquire competitor HMG several years later.

In 2014, Cogent HMG’s competitor Sound Inpatient Physicians, a subsidiary of Germany’s Fresenius Medical Care, purchases Cogent for almost $300 million. Sound nearly doubles in size.