He moved to Moscow in 1921. There he served as Secretary of the People's Commissariat at Glavpolitprosvet (Central Committee of the Republic for Political Education). From 1921 to 1926 he published his essays in the Moscow edition of Berlin’s newspaper "Yesterday", collaborated with the newspapers "Whistle", "Work", the journal "Medical Practice" (where he published his famous Notes of a Young Doctor), "Russian", and "Revival" (which published Notes on the Cuffs and the novel White Guard). The first collection of satirical stories Diaboliad (1925) caused controversy in the press. In 1926, the Moscow Art Theater staged Bulgakov's play Days of the Turbins, from 1926 to 1929 Bulgakov’s play Zoyka’s apartment was staged in the Studio of Vakhtangov Theater, and in 1928 and 1929 rehearsals of The Purple Island started in the Moscow Chamber Theatre. Literary critics of the late 20s negatively assessed Bulgakov’s work. By 1930 his works were not printed and his plays were removed from the repertoire of the theaters. In 1930 he worked at the Central Theatre of working youth (TRAM). From 1930 to 1936 Bulgakov worked as an assistant director at the Moscow Art Theater, which in 1932 staged Dead souls by Gogol. From 1936 Bulgakov worked as a librettist and translator at the Bolshoi theatre. He died on March 10, 1940 in Moscow and was buried at Novodevichy Cemetery.