This article aims at analyzing the profile (place of origin, nationality and sex), the place/institution of graduation and the insertion of physicians into the labor market of São Paulo between 1892 and 1932, a period covered by only a small number of studies on this topic. The source of information used in this survey is the collection of records of the Professional Practice Audit Service of the State of São Paulo, preserved in the Center for the Memory of Public Health. The present paper refers to a preliminary study, part of a broader project aimed at constructing a data bank and analyzing the formation and the profile of workers acting in São Paulo in different health areas, between 1892 and 1978.