Medicaid Medical Advisory Cabinet (MMAC)

Medicaid Medical Advisory Cabinet

The Medicaid Medical Advisory Cabinet (MMAC) is an interdisciplinary team of MDs and PhDs, including both clinicians and researchers, who provide expert-driven and research-based policy advice to Indiana’s Office of Medicaid Policy and Planning (OMPP).  MMAC contracts with the state to provide these services, and their agreement is guided by principles of collaboration.

Since its formal beginnings in 2006, MMAC has been called on to conduct a wide variety of projects, from large-scale data analyses and in-depth literature reviews to “off-the-cuff” expert opinions.


It is MMAC’s intent that Indiana’s government leaders will use the work produced through this collaboration to make informed policy decisions.

Recent Projects

  • A review of the Indiana Medicaid Policy Manual to ensure that existing policies are up-to-date with current medical evidence
  • Conduct a randomized control trial to assess cost effectiveness of a Genomind, Inc. genetic screening product, Genecept™, for patients with mental health disorders
  • A comprehensive reveiw for consideration of approximately 607 specific genetic tests to assess whether or not each of the genetic tests fit the general policy criteria
  • Recommendations regarding a pediatric preventive health care periodicity schedule

Significant Contributions

  • Following an analysis by MMAC of evidence for Applied Behavior Analysis (ABA) for the treatment of autism spectrum disorder, OMPP recently released coverage plans for ABA
  • An extension of an existing AHRQ/Rutgers study examining the use of atypical antipsychotics in children has led to a publication in the Psychiatry Services journal titled "Second Generation Antipsychotic Use & Cost Trends in Indiana Medicaid Children & Teens (2004-2012)"

MMAC Members

Stephen M. Downs, MD, MS

  • MMAC Director
  • Jean and Jerry Bepko Professor of Pediatrics
  • Expertise:  Pediatrics; Health Services Research;  Medical Informatics; Cost-Effectiveness Analysis; Technology Assessment

Matthew Aalsma, PhD

  • Associate Professor of Pediatrics & Psychology
  • Expertise:  Child & Adolescent Mental Health Services; Adolescent Health & Health Care; Research with Vulnerable Populations

Brownsyne Tucker Edmonds, MD, MS, MPH

  • Assistant Professor of Obstetrics & Gynecology
  • Expertise:  Patient-Provider Communication; Obstetrical Decision-Making; Impact of Race, Class and Culture on Health-Related Decision Making, Care, and Outcomes

Megan S. McHenry, MD

  • Chief Resident, General Pediatrics
  • Health Services Research; Preventative Care; Global Health

Cassie Karlsson, MD

  • Assistant Professor of Clinical Psychiatry
  • Autism & Other Neurodevelopmental Disorders in Children and Adults; Integrated Mental Health Care

For more information please contact:

Research Coordinator