Ambulant (secondary) health care is the chain of health care, where specialized (secondary level) consultations of doctors specialists are rendered. In Lithuanian national health system we can mark three models (types) of institutions which render ambulant health care services, depending on organization of services and type of ownership. These institutions are: municipality clinics, rendering primary and secondary health care services (mixed institutions), municipality centres of primary health care (municipality institutions of primary health care) and private institutions of primary health care (independent contractors). This research is a way to name problems, which emerge seeking to control mixed institutions, rendering (secondary level) health care services. The aim of work: to analyse control problems of rendering ambulant health care services and propose possible ways of solutions. Methodology: to analyse ambulant services, rendered by secondary level doctors otorinolaringolists in the period 2006-01-01 – 2006-01-31, equivalence of these services to law acts and validity of tender to discharge them from the budget of compulsory health insurance allocation. Informational system data SVEIDRA of State patient fund and primary medicine documentary were analysed. Research involved three institutions (mixed clinics), rendering primary and secondary ambulant health care services in Vilnius city. These clinics had contracts with State patient fund. All chosen clinics were... [to full text]