The median annual wage of medical assistants was $28,860 in May 2010. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $20,810, and the top 10 percent earned more than $40,190.
Most medical assistants work full time. Some work evenings or weekends to cover shifts in medical facilities that are always open.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition