Olathe Medical Center is the newest beneficiary of a donation splurge by the Sunderland Foundation. Olathe Health announced that the foundation pledged $4 million to support a planned expansion of Olathe Medical Center’s surgery suite and pharmacy. The pledge is a lead gift in a $7 million capital campaign. The overall project, to be completed next summer, includes a two-story expansion that adds nearly 17,000 square feet south of the center’s existing surgery space, according to a release.…