Pacific Health Care Organization, Inc. engages in managing and administering health care organizations and manages provider networks through its subsidiaries. The company is headquartered in Irvine, California and currently employs 30 full-time employees. The company went IPO on 2005-06-09. The firm offers an integrated and layered array of complementary business solutions that enable its customers to manage their employee worker compensation-related healthcare administration costs. Its services include providing customers access to its HCOs and MPNs. The firm also provides medical case management, medical bill review, employee advocate services, utilization review, workers' compensation carve-outs and Medicare set-aside services. In addition, it also provides expert witness testimony. The company offers its services as a bundled solution, as standalone services, or as add-on services. Its customers include self-administered employers, insurers, third party administrators, municipalities and others. The firm's subsidiaries include Medex Healthcare, Inc., Medex Medical Management, Inc., and others.