 He was appointed a member of the State charities convention in 1914 and served as superintendent of Peoples Hospital in New York City from 1910 to 1927.He was appointed commissioner of child welfare in 1919 and served until 1931; in 1924 he was an unsuccessful candidate for election to the 69th United States Congress.Sirovich was elected as a Democrat to the 70th, 71st, 72nd, 73rd, 74th, 75th and 76th United States Congresses, and served from March 4, 1927 until his death.