Objectives: This research has been done on the impact of the hospital information system on the staffing of Imam Jafar Sadiq Hospital in Alborz in 2016. The research method is applied and in terms of data collection method, descriptive-survey method. The statistical population consisted of all employees of contractual, design and contract personnel working in Imam Jafar Sadiq Hospital. Methods: In this study, 384 people were selected using Cochran's formula, which were selected by available sampling method. The validity of the researcher-made questionnaire and their reliability were confirmed by Cronbach's alpha with a coefficient of above 0.7. In the descriptive statistics section, mean, standard deviation, frequency and percentage of frequency were used. In the inferential statistics, the inclination and elongation were used to determine the normality of the data. Results: The results of one-sample T-test and Friedman indicate that the hospital information system improves the work process of the staff members of Imam Jafar Sadiq Hospital. Conclusion: Hospital information system has the greatest impact on hospital support and administration and has had the least impact on hospital performance. It should be noted that the results are consistent with most studies performed. Peer Review History: Received 29 September 2017; Revised 16 February; Accepted 25 February, Available online 15 March 2018 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file: Reviewer's Comments: Average Peer review marks at initial stage: 4.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. Hebatalla Ibrahim Ahmed Abdel Hameed, Al-Azhar University, Faculty of Pharmacy (Girls), Nasr City, Cairo, Egypt, hebatalla123@yahoo.com Dr. Luisetto Mauro, AUSL PC, Piacenza Area, Italy, M.Luisetto@ausl.pc.it Similar Articles: IDENTIFYING AND PRIORITIZING FACTORS EFFECTIVE ON HOSPITAL SERVICES QUALITY FROM THE PATIENT ATTENDANTS VIEW USING FUZZY AHP TECHNIQUE IN 2017 EXAMINING THE IMPACT OF ACCESS TO HEALTHCARE INFORMATION IN PROVIDING SERVICE IN HOSPITAL LEVEL OF HORMOZGAN PROVINCE