Physicians are key personnel in the health care system. Currently there is a worldwide shortagernof health workers, particularly physicians. In some countries this shortage of physicians isrnaggravated by migration. Ethiopia is one of those countries who face severe shortage ofrnphysicians. With the advent of private health sectors, the movement and migration of physiciansrnFrom public to private sector becomes a common phenomenon. Moreover, there is a mass exodusrnof physicians outside Ethiopia. Because of these internal and external migrations of physicians,rnthe service delivery of the public sector is highly affected. But this phenomenon is given littlernattention. The objective of this study is to find out the root causes of migration and its impact onrnservice delivery. To do this research both primary and secondary source of data were used.rnDescriptive and econometric techniques had been employed for analysis. A pro bit estimationrnwas used to analyze the determinants of migrate on. The findings of the study show that lowrnsalary and remuneration, unavailability of drugs, lack of professional resources and poor qualityrnof management were the major push factors for internal migration. The significant pull factorsrnfor internal migration were found to be the opposite of push factors of internal migration.rnConcerning out-migration the study revealed that low salary, lack of incentives, poor quality ofrnmanagement, and feeling de-motivated by poor health care infrastructure, resources andrnfacilities were the main endogenous push factors. From endogenous pull factors better salary,rnprovision of different incentives, better opportunity and quality of education; and sophisticatedrnhealth facilities, in Infrastructure and resources were found to be the most important attractingrnfactors. Low quality of life in Ethiopia and political repression were found to be the mostrnsignificant exogenous push factors of migration. The opposite of these factors were found to bernthe most influential exogenous pull factors.