INTRODUCTION: Colorectal cancer has the second most frequent incidence among men and women in São Paulo state, it was expected 11.560 new cases for 2014.  Most of cases require surgical treatment and nowadays the public health care system covers only 54% of the demand. Raise coverage may occur without increase the health care network. A Fast Track program that brings efficiency and consists in a set of perioperative actions that generates less surgical stress, less inflammatory response, promoting a faster recovery and lower complications rate, when compared with standard treatments could help to achieve this goal. Several studies show that it’s possible to reduce the hospital stay in 2.5 days with the adoption of a Fast track program, without increasing mortality and readmission rates. OBJECTIVES: Evaluate the potential growth coverage in the existing demand by simulating the deployment of a Fast Track program in key public institutions in São Paulo state. METHODS: Hospitals with the greatest colorectal cancer surgical volume were selected. Ten services correspond to 50% of the surgical volume in colorectal cancer. Based on the results obtained in the literature and the current hospital stay of each hospital, it was simulated the deployment of a Fast Track program and measured the productivity, considering the same bed infrastructure.  RESULTS: During the simulation, 9 of 10 hospitals would increase productivity, resulting in a potential growth of 30% in the number of surgeries, from 1,390 to 1,804 procedures. Thus, the adoption of a Fast Track program in 10 institutions would increase the current demand coverage from 54% to 71%. The average length of stay would decrease from 8.7 to 6.7 days. CONCLUSIONS: Fast Track program could increase the productivity and efficiency of the colorectal cancer surgical care without raises the health care network, contributing to increase the public health care coverage.