Elimination of methadone benefits in the Oregon Health Plan and its effects on patients.

Objectives: This prospective study assessed the impacts of a policy change to Oregon's Medicaid program (Oregon Health Plan; OHP) that eliminated methadone benefits for 60 percent of active methadone patients. Recipients of OHP Standard (expanded Medicaid benefits, which were discontinued after the policy change) self-selected into two groups: those who paid for methadone after the policy change and those who terminated treatment. OHP Plus beneficiaries (traditional Medicaid) did not lose benefits.