Whitman Hospital and Medical Center (Colfax, Wash.). Whitman Hospital and Medical Center first opened in May 1893 and has continued to grow, boasting more than 200 employees and 47 physicians today. It has been in its current building since 1968 and serves a 1,200-square-mile district. This year, for the first time, iVantage Health Analytics named WHMC as a Top 100 Critical Access Hospital, and the hospital earned the Award of Excellence from Qualis Health this year for its readmission reduction project.