Medical Personnel Services assists the medical community with their staffing needs with full and part time medical office help. Description Medical Personnel Services, a service of the Chattanooga-Hamilton County Medical Society, is a professional medical staffing company that specializes in placing healthcare professionals with healthcare organizations. Our network is continuously growing with experienced individuals ready to serve in any healthcare field throughout the Tennessee Valley. We match highly qualified and talented individuals with positions that suit their personal goals and lifestyles. MPS is the most qualified source for all medical staffing needs!