The Nebraska Medicaid managed behavioral health care initiative: impacts on utilization, expenditures, and quality of care for mental health.

This study evaluates the impact of Nebraska's Medicaid managed care program for behavioral health services on mental health service utilization, expenditures, and quality of care. Implementation of the program is correlated with progressive reductions in both total (about 13% over 3 years) and per eligible per month (20%) expenditures and a rapid, extensive decline in inpatient utilization and admissions. The percentage of enrollees receiving any type of treatment for a mental disorder actually increased modestly. Most important, several indicators of quality of care (e.g., timely receipt of ambulatory care following discharge from inpatient care and readmission to inpatient care shortly following discharge) suggest that quality of care did not materially change under the carve-out. Although a thorough assessment of quality of care impacts is warranted, this study suggests implementation of a managed care program may allow states to reduce Medicaid expenditures without compromising quality of care.