St. John's Mercy Hospital Building is a historic hospital building located at Springfield, Greene County, Missouri. The building was constructed in four stages: The original section was built in 1906 (demolished about 1970); a separate convent was constructed in 1914; a four-story Jacobethan addition was added in 1922; and in 1944 a four-story unit and gymnasium were constructed. The brick and limestone building features Tudor arch and segmental arch openings.[2]: 5