Mary P. Sowers

Mary P. Sowers

Executive Director
301 N Fairfax Street, Suite 101
Alexandria, VA 22314 
For email, please contact

Mary became the NASDDDS executive director on July 1, 2019. Prior to this role, Mary served as the association’s director of special projects for five years, working on a variety of federal and state initiatives on behalf of NASDDDS’ members. Before joining NASDDDS, Mary was with Mercer Government Human Services Consulting where she provided consultation and technical assistance to state governments on a wide array of Medicaid-related issues, with a focus on home and community-based services and managed long-term services and supports.

Prior to joining Mercer in 2011, Mary held senior positions with the federal Centers for Medicare & Medicaid Services (CMS), Disabled and Elderly Health Programs Group within the Center for Medicaid, CHIP and Survey and Certification. During her tenure at CMS, Mary specialized in Medicaid home and community-based services, managed long-term services and supports (including strategies for reducing institutional reliance), self-direction, and strategies to design person-centered systems of care.

In her various roles at CMS (including Technical Director for Home and Community-Based Services, Division Director for Community and Institutional Services, and Senior Policy Advisor), Mary regularly developed policy and tools on waivers and demonstrations and provided technical assistance and support to CMS leadership and staff nationally. She also regularly worked with state Medicaid programs in the development and implementation of these programs. While at CMS, Mary also collaborated extensively with partners across many components within the U.S. Department of Health and Human Services, and other federal agencies interested in and leading efforts with implications for individuals with disabilities, individuals who are aging and individuals with chronic conditions.

Before joining CMS, Mary led Maryland's efforts around home and community-based services for individuals with intellectual and developmental disabilities (I/DD). In that role, she managed two waivers serving more than 10,000 individuals, served as primary legislative contact on I/DD issues for the department, and led stakeholder input and advisory efforts, with a focus on building partnerships with self-advocates and families.