When medical group and HMO part company: disenrollment decisions in Medicare HMOs.

摘要: Medicare beneficiaries who enroll in "risk contract" Health Maintenance Organizations (HMOs) are covered for services only if they provided or approved by the HMO. Thus, their enrollment decisions involve selecting a health care delivery system and may be influenced whether HMO has contracts with particular providers. Disenrollment decisions, turn, breaks between its medical groups. This study examines made enrollees when terminated relationship major group; group then signed contract competing Beneficiaries were forced to choose remaining switching another provider, where could keep provider. demonstrated considerable loyalty providers; nearly 60% switched Previous research on coverage been based models which did not address consumers' knowledge, options, information sources. In this decision context, we found that knowledge sources most important determinants of beneficiary decisions.