It can be defined as a practitioner who provides initial contact for a person without diagnosing health concern as well as long-term care of different medical conditions which is not limited to cause, organ system or diagnosis. A primary care physician is first practitioner who contact patient because of easy and simple communication and to provide care to the patients.The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information.The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.