Structural Problems of Managed Care in California and Some Options for Ameliorating Them

by Sara Singer, Alain Enthoven

Fall 2000

Volume 43
Issue 1

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Of the two main types of health maintenance organizations (HMOs), IPA/network HMOs (which contract with independent practice associations (IPAs) and other medical groups) have grown faster than group/staff HMOs (which partner with exclusive multi-specialty medical groups or employ staff physicians). However, because the IPA/network HMOs in California contract with wide and overlapping networks of physicians and hospitals in order to satisfy purchaser demand, these arrangements suffer from inefficiencies that confound and frustrate physicians and consumers and these arrangements fail to provide the highest-quality, most-economic care. This article reviews the historical context and growth of managed care in California and then delineates efficiency problems due to overlapping networks of IPA/network HMOs. The authors also review a variety of potential strategies for addressing these problems and discuss advantages and disadvantages of each option.

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