Mathematica and the RAND Corporation are conducting a mixed-methods evaluation of the CCBHC model to assess the model’s implementation and impacts on service utilization and costs.
Allison Wishon Siegwarth
- Mental Health Policy
- Policy Analysis and Program Evaluation
- Qualitative Research
- Medicaid and CHIP
- Human Services
Allison Wishon Siegwarth’s research centers on the delivery and quality of health care for people with mental illnesses and disabilities. Much of her work has focused on evaluating strategies to expand access to and coordination of Medicaid behavioral health services.
Wishon Siegwarth currently leads the design and implementation of a national study for the Centers for Medicare & Medicaid Services (CMS) regarding payments to Medicaid managed care plans on behalf of certain enrollees receiving services in institutions for mental diseases. She also leads key tasks for the evaluation of the Certified Community Behavioral Health Clinic Demonstration for the Office of the Assistant Secretary for Planning and Evaluation and the evaluation of the Substance Abuse and Mental Health Services Administration’s Primary and Behavioral Health Care Integration program. Previously, she led development of a data validation strategy for the Inpatient Psychiatric Facilities Quality Reporting program for CMS. She also provided qualitative leadership on the evaluations of the Health Care Innovation Awards behavioral health awardees and the Medicaid Emergency Psychiatric Demonstration for CMS.
Wishon Siegwarth has published in peer-reviewed journals, including Psychiatric Services and the Psychiatric Rehabilitation Journal. Before joining Mathematica in 2013, she served on the policy team at the Bazelon Center for Mental Health Law, where she conducted policy analysis and research, provided technical assistance, and represented the interests of those with serious mental illnesses. She holds an M.H.S. from the Department of Mental Health at the Johns Hopkins Bloomberg School of Public Health.
Evaluation of the Certified Community Behavioral Health Clinic Demonstration
Evaluation of the Primary and Behavioral Health Care Integration Program
We are evaluating the Primary and Behavioral Health Care Integration program, designed to improve the health status of adults with serious mental illnesses.
Evaluation of the Medicaid Emergency Psychiatric Services Demonstration (MEPD)
Through this demonstration, 11 states and the District of Columbia receive federal Medicaid matching funds for inpatient treatment in participating private institutions for beneficiaries with psychiatric emergency medical conditions. As mandated by the Affordable Care Act, the evaluation is addressing...
Strategies for Integrating and Coordinating Care for Behavioral Health Populations: Case Studies of Four States
Mathematica conducted an environmental scan and discussions with state officials and other stakeholders in Louisiana, North Carolina, Tennessee, and Vermont to describe each state’s approach to integrating and coordinating care for behavioral health populations.
Innovative State Systems Supporting Coordinated Services for Individuals with Mental and Substance Abuse Disorders
Mathematica examined the features of innovative state systems that support coordinated services for individuals with mental health and substance use disorders. We conducted case studies of states to examine how they finance, organize, and deliver coordinated care for this target population.
Mathematica Disability and Health Experts Guest Edit, Contribute to Psychiatric Rehabilitation Journal®
Mathematica Policy Research behavioral health and disability expert Crystal Blyler guest edited a special issue of the Psychiatric Rehabilitation Journal, which includes a number of articles coauthored by Mathematica disability and mental health experts.