In addition, investigators will conduct interviews every three months with selected stakeholders to assess the degree to which the intervention and the study are succeeding and what challenges have occurred. This will allow for corrections as the study proceeds. Investigators will focus on the factors that will contribute to the implementation and sustainability of the health navigator intervention including: cost, training, supervision, billing issues, and how this position will fit into the organizational model of the clinic. To begin the interview, investigators will ask each person interviewed for his or her ideas about what are the critical factors for implementation and sustainability. Finally investigators plan on conducting exit interviews with each patient as part of their final assessment. Exit interviews will focus on the patients' perceptions about the study, how it affected them, what went well, and what challenges they encountered. Each interview should last about 20-30 minutes and will be audio-recorded using an encrypted tape recorder. Investigators will use a semi-structured interview guide so that all interviewees are asked the same questions and data are comparable. Basic demographics such as gender, ethnicity, and age will be recorded for all participants.