The Effect of HMO Competition on Gatekeeping, Usual Source of Care, and Evaluations of Physician Thoroughness

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American Journal of Managed Crae--September 2003

OBJECTIVES: To examine the effects of HMO enrollment and HMO competition on evaluations of physician thoroughness through their effects on gatekeeping and having a usual source of care and to determine whether the effects of HMO competition spill over to individuals not enrolled in HMOs and whether these effects differ in those enrolled vs not enrolled in HMOs.

CONCLUSIONS: For HMO enrollees, the overall effect of HMO competition is to increase evaluations of physician thoroughness. For those not in HMOs, although there are HMO competition spillover effects, they are offsetting, resulting in no overall effect of HMO competition on evaluations of physician thoroughness.