Executives and Department Leaders
Bill Vaughn, President/CEO
Bill Vaughn was appointed President and CEO of Mainstream Living in 2013. He began his career with the organization in 1980 as a direct care staff member, serving in a variety of roles, including 1st Vice President. He is the founder and served as Executive Director of Community Support Advocates, LLC (CSA), a subsidiary of Mainstream Living until it was sold in 2014. Under his direction, CSA was recognized for outstanding services and received the highest annual independent reviews awarded from the University of Iowa Law, Health Policy & Disability Center for eleven straight years. CSA was also awarded the prestigious “Excellence Award for Program Innovation and Quality” from the Iowa Association of Community Providers. Vaughn holds a Master’s degree in social work administration from the University of Iowa, and a Bachelor’s degree in psychology from Iowa State University. He is a Licensed Independent Social Worker, and provides direction and oversight for the agency's mental health services. Vaughn served as an Administrative Surveyor for the Commission on Accreditation of Rehabilitation Facilities (CARF) for fifteen years. CARF is an independent, nonprofit accreditor of health and human services. Vaughn lead accreditation teams in reviewing similar organizations throughout the United States and Canada, to improve the quality of service and business practices for the industry. He is proud to have outstanding long-term relationships with members and their families and a proven record of developing extraordinary teams.
Kris Eastman, Chief Operating Officer
Kris Eastman's commitment to the disability field began as a student at Iowa State University. Following completion of her Bachelor’s of Science in Social Work, she started a career focused on servant leadership. Eastman's passion to provide creative, innovative and responsive services has been given an outlet for nearly four decades at Mainstream Living. She has had many roles in the organization including direct care, mid-level management and senior leadership. In 2013, she was appointed Vice-Present of Waiver Services and began oversight and supervision of all residential and day services programs at Mainstream Living serving persons with intellectual disabilities and brain injuries. In 2017, she began sharing her talents with other organizations by becoming a certified CARF surveyor. CARF is an international accreditation agency that provides peer driven surveys and guidance through its surveyor’s expertise and knowledge. She has completed surveyes in several states around the country. Eastman recognizes the importance of work /life balance; so, you will often find her enjoying the outdoors during her free time. She likes to bike trails, hike around, listen to music at the park or simply enjoy a glass of wine on her deck. Most importantly, she loves to spend time with her friends and family.
Stuart Ambrose, Chief Financial Officer
Stuart Ambrose joined Mainstream Living in 2008 when he was hired as the Director of Finance. In 2016, Ambrose was promoted and now holds the title of Chief Financial Officer at Mainstream Living. Ambrose is responsible for the management of all general accounting areas and the organization's budget as well as oversight of the annual audit. As a former bank auditor, his knowledge and expertise of fiscal management is an asset. Ambrose received his Bachelor's Degree from the University of Northern Iowa and his Masters in Accounting from Iowa State University. Stuart lives in Nevada and is a proud dad to his son Tucker.
Traci Miner, Vice President of Waiver Services
Traci Miner was appointed Vice President of Waiver Services in 2022. Miner has worked for the organization since 1994 when she was looking for an organization to complete her college practicum. She has held multiple positions with Mainstream Living's Home and Community Based Services (HCBS) Program, serving as Program Coordinator for over 13 years. As Vice President of Waiver Services, Miner is responsible for oversight of Mainstream Living’s multi-county residential services and day programming for adults with intellectual disabilities and brain injuries. Traci is a servant leader who excels at collaborating with others to find creative solutions to the many challenges in the industry. She is committed to commitment to compassionate care and appreciates the many ways in which she is able to positively impact the lives of many individuals and families. Miner received her Bachelor's Degree from University of Northern Iowa. She enjoys yard work and spending time with family.
Lu Wingfield, Vice President of Mental Health
LuAnn Wingfield is the Vice President of Mental Health Services, overseeing all mental health program offered by Mainstream Living. Wingfield has worked for the organization since 1988 when she began her career in direct care while attending Iowa State University. Since that time, she has held nine positions with the company, including Case Management Supervisor and Program Administrator for a 40-bed Residential Care Facility that Mainstream previously operated in Des Moines. Wingfield works conscientiously to develop the leadership capacity of our direct care and mid-level staff, while inspiring others to provide the very best services possible. She is committed to involving families, guardians, and members in enhancing their understanding of mental health needs and engaging them in a comprehensive manner towards recovery-focused goals. Working to ensure mental health programs meet the needs of the community, she emphasizes our mission, while leading Positive Behavior Supports (PBS) efforts throughout the organization. Wingfield holds a Bachelor's of Social Work from Iowa State University. She lives in Urbandale with her husband and they have an adult son, Boyse. Outside of work, she enjoys going to the gym, home decorating, and painting.
Amber Corrieri, Director of Corporate Compliance & Communications

Marcanne Lynch, Human Resources Director
Marcanne joined Mainstream Living in the fall of 1986 as a direct support professional. She completed her Bachelor of Arts degree at Drake University in 1987 and spent the next 15 years of her tenure working in many positions in residential services. She worked as a Program Coordinator in the Mental Health program for two years before returning to work with individuals with intellectual disabilities. She opened and managed the first of many five person homes in Polk County. After serving as the Director of the Des Moines residential services; Home and Community Based Program for 10 years, she switched career paths to Human Resources. Initially focused on Des Moines recruiting, her duties expanded to company wide efforts with recruiting, retention, and employee relations. Her passion lies in promoting the mission and building a positive culture for Mainstream Living. Marcanne was appointed Director of Human Resources on July 1, 2019. She serves on the Central Iowa Workforce Development Board. Marcanne is a resident of Des Moines and enjoys flower gardening, crafting with friends and spending time with her five children and extended family.
Amber Schaefer, Program Director - The Center
Amber Schaefer has worked for Mainstream Living for nine years. She started in direct care and worked as a Team Leader in the HCBS residential program until 2011, when she became the Program Director of The Center (formerly known as the Mainstream Employment and Learning Center). Under her leadership, programming at The Center has expanded to include a new focus on the Sensory Program and the addition of ACE, a new program designed for members working towards greater independence. Schaefer also serves on the Board of Directors for Creative Counseling Services in Ames. She received her Bachelor of Science in Child, Adult and Family Services from Iowa State University. Outside of work, Amber enjoys spending time with her family, gardening, painting, playing piano and playing the ukulele with her bandmates, Britches and Hose Ukulele Club. She is honored to be part of a team that has such genuine care for the members served. "I feel that we are all so privileged to have the opportunity to be a part of so many wonderful peoples’ lives. I can’t imagine spending my days anywhere else."