Introduction: Integrated and goal - oriented productivity attempts as well as decision making for next action can be considered as a leading approach for organizations which will in turn result in to competitive advantages. This research was done to assess Social Security Organization Hospitals in Tehran according to The National Productivity Model.

Methods: This cross- sectional descriptive research was done in two Social Security Organization hospitals with ISO certification. Data collection was done using a self-assessment questionnaire of the national productivity model based on nine criteria of the model in the hospitals.

Findings: According to the findings Alborz hospital has had the higher score in leadership criterion (46.1%), policy and strategy (50.6%), and processes (61%). Panzdah khordad hospital has had the higher score in employee criterion (47.39%), partnership and resources (49.5%), customer results (46.1%), employee results (39%), society results (40.6%), and key performance results (56.5%). The total shows that Panzdah khordad hospital scored 471.56 and Alborz hospital 439.55, respectively.

Conclusion:The result , as the first practical experience in health care field , showed that the model is quite applicable to benchmark and supervise hospital performance with a focus on continuous quality improvement. There fore, it is remmended to the Ministry of Health to use the criteria of the model for grading and formal assessing of hospitals.