Background: Background: For optimal patient care and outcomes, effective collaboration and communication between nurses and physicians are essential. This can be attained through various factors that impact nurses' productivity. The study aimed to assess the effect of enhancing nursing personnel- physicians' communication and collaboration on nursing. Design: A quasi-experimental design was utilized. Setting : The study was conducted in emergency and intensive care units (ICU) at Damanhour Medical National Institute. Subjects consisted of all available nursing personnel (52) and physicians (36). Tools of data collection five tools was used; Communication and Collaboration Knowledge Questionnaire. , Communication and Collaboration Attitude Questionnaire Communication Skills Observational Checklist. , Collaboration Skills Observational Checklist. , and Nursing productivity Questionnaire The result showed that nursing personnel(75 %)and physicians(63.9 %)had an inadequate level of knowledge in preprogram phase while in the post program(84.6,90.4%)and follow up(82.7,86.1%)their knowledge levels improved to become adequate. There was a negative attitude prevailing in the pre-program phases (71.2, 66.7 %), which shifted to a positive attitude in the post-program (78.8,83.3% ) and follow-up phases( 75.0,80.6%) .There was incompetent level of skills in pre-program phase(71.2 , 55.6 %) which it improved to be competent in the post program(82.7,86.1% ) and follow up( 80.8,83.3%) . Less than half of nursing personnel (40.4 %) had moderate level of total productivity in preprogram phase while in the post program (67.3% ) and follow up( 61.6%) there total productivity was improved and became high respectively.Additionally, nursing personnel had moderate level of productivity in pre-program phase while in the post program & follow up their productivity became high. The study concluded that the program effectively improved knowledge, attitude, and skills regarding collaboration and communication among participants during both the post-program and follow-up, as well as in the productivity of nursing personnel. During both the pre-program and follow-up phases, there was a statistically significant positive correlation was evident between nursing personnel and physicians regarding their knowledge, attitude, and skills pertaining to communication, collaboration, and productivity within the nursing personnel. The study recommended developing interprofessional education programs uniting nurses and physicians to enhance collaborative learning, and promoting teamwork culture.Background: For the best possible patient care and results, it is imperative that nurses and doctors collaborate and communicate more effectively. This can be achieved through a number of variables that influence nurses' output. The study aims to assess nursing personnel - physicians communication and collaboration thorough program and its effect on nursing productivity. Design: A quasi-experimental was utilized. The study subjects consisted of all available nursing personnel's (52) nursing personnel and physicians 36 . The study setting was at Damanhour Medical National Institute. Tools of data collection five tools was used; Communication and Collaboration Knowledge Questionnaire. Communication and Collaboration Attitude Questionnaire. The result showed that Nursing personnel and Physicians had inadequate level of knowledge in pre-program phase while in the post program& follow up there knowledge items became adequate..These studied concluded hat the training course was successful. During the post-program and follow-up phases, there was an improvement in the knowledge, attitude, and skills regarding collaboration and communication, as well as an improvement in the productivity of nursing staff.. The study recommended to develop inter professional education programs that bring nurses and physicians together for collaborative learning. These programs focus on enhancing communication skills, understanding each other's roles, and fostering a culture of teamwork.