[1] The church dedicated to the Miraculous Medal was established in 1933 by the Daughters of Charity of Saint Vincent de Paul, who had been in Grosseto since 1877 and managed the San Lorenzo girls' orphanage.

[2][3] By the late 1950s, with the completion of the Basilica of the Sacred Heart of Jesus on Via della Pace, the church of the Miraculous Medal was made a subsidiary of that parish.

[3][4] The church of the Miraculous Medal features a single-nave layout in Romanesque Revival style, with a semi-circular apse and a bell tower rising from the rear left.

[3][4] The masonry of both the church and the bell tower is distinguished by a striking two-tone effect created by the regular alternation of travertine and brick, which seamlessly covers the entire exterior wall.

The mosaic floor displays a symbol featuring two hearts and an "M" topped by a cross, with the date 27 November 1830, commemorating the old cemetery built by Leonardo Ximenes that once stood nearby, at the site of the current financial offices building.