Quintiles average salary is $77,627, median salary is $74,000 with a salary range from $36,878 to $300,000.Quintiles salaries are collected from government agencies and companies. Each salary is associated with a real job position. Quintiles salary statistics is not exclusive and is for reference only.uintiles average salary is $77,627, median salary is $74,000 with a salary range from $36,878 to $300,000.