The study found that the job satisfaction of medical and health staff was comparable to other noncustody groups. No statistically significant difference in job satisfaction was found between the health care staff and teachers. The sources of job satisfaction identified support past prison research that has routinely found work-related variables to have a stronger impact on work outcomes than personal characteristics. Efficacy in dealing with inmates had the strongest influence on job satisfaction, followed by feelings toward organizational operations and supervision support. Healthcare staff serve important humanitarian, legal, and security functions inside prisons. Even though critical to daily life in prisons, little is known about their work attitudes and outcomes. Using data from the Prison Social Climate Survey, this study analyzed the amount and sources of job satisfaction among 430 healthcare practitioners in the Federal prison system. Tables, appendix, notes, and references