Mercy West Medical Center

The Mercy West Medical Center is a rival hospital to Seattle Grace Hospital in Seattle, which has been described as on "the other side of town". The doctors have stolen patients from Mercy West quite frequently.

Season 2
Preston Burke and Erica Hahn fought over a donor heart for their patients (GA: 17 Seconds).

On Thanksgiving, Dr. Kent worked as a temp attending at Seattle Grace, he currently works at Mercy West.

Season 3
An intern from Mercy Wes named Marshall was admitted to Seattle Grace after causing an accident.

George O'Malley applied to become a resident at Mercy West, he was accepted pending the result of his intern examination. However he failed and instead came back to work at Seattle Grace.

Season 6
As Richard Webber couldn't promote her, Callie Torres left Seattle Grace and became a surgeon at Mercy West instead. Richard Webber was later admitted after being involved in an accident and had an intern, Dr. McKee as his doctor.