Leadership Team



Tracey Hamlet,
Executive Director

In her Executive Director role, Tracey works collaboratively with internal and external partners to support solutions for providing high quality services for people in our community.  Tracey believes in our mission and is passionate about MOKA because we are an agency that is “grounded” in, and has never strayed from, a grassroots advocacy for people who need support to gain a stronger voice and full community belonging.

Dorothy Bowne,
Human Resources Director

Dorothy has the privilege of supporting MOKA’s amazing employees! She loves being part of an organization that is making a real impact in the lives of the people we serve.

Emily Betz,
Director of Programs

Emily has the privilege of supporting the work that is done in our Programs. She loves working for an organization that truly lives its mission of “creating opportunities for independence and acceptance.” Emily believes our work impacts West Michigan in a way that in the future we will no longer need to be working toward acceptance but instead will be working toward membership of every person of the community, disability or not.

Bryan Voss,
Finance Director

Bryan helps support our team’s through management of the financial health of the organization. Currently, this management includes the accounting, property, and information systems team areas. Bryan believes that MOKA is an organization that lives its mission and truly cares about the individuals that we serve and enjoys being able to help guide the financial strategies that allow us to continue and even expand this mission.

Michael Gross,
Director of Process Improvement

Michael works in collaboration with program and shared services leaders to achieve improvements in operational performance, efficiency and effectiveness throughout the agency. Michael leads the agency’s Information Technology team and champion’s process improvement and data analysis in order to achieve measurable improvements. It has become very important to Michael to work at something that positively impacts the lives of others.  When he first saw this position and studied the focus and goals of MOKA, he knew this is what he wanted to do.  Michael looks forward to the years that come and meeting with everyone.

Lee Ann Shedleski-Holmden,
Director of Residential Services

Lee Ann is responsible for the operations of MOKA’s Residential and Care Coordination programs, including ensuring quality services are provided consistent with the vision, mission and strategic direction of the agency. Lee Ann loves seeing the people we serve become active members of their communities and is grateful for the dedication of our employees who work diligently every day to help people achieve their hopes and dreams

Daudi Mbuta

Daudi Mbuta,
Regional Director of Residential Services, MOKA North

Daudi supports and equips teams with skills that will improve the individual’s experiences and improve the quality of services. Seeing the impact of the work his teams do in individual’s lives, gives Daudi the zeal to continue loving what he does.

Tom Zvirgzds,
Regional Director of Residential Services, MOKA South

Tom supervises residential services in Ottawa and Allegan Counties. He loves that every day is filled with possibilities to help others, and being part of a strong, active, skilled, supportive, and fun team that makes lasting impact.

Nicole Knights,
Director of Community Supports

Community Supports offers an array of programs and services to help individuals lead their best lives. It’s Nicole’s job to ensure that every individual is supported in the most beneficial way possible through MOKA services. She enjoys helping individuals served by MOKA to gain knowledge and skills necessary to be successful and accomplish their goals through community connections that support their health and wellbeing. Investing in people, teaching self-advocacy, and helping every person reach their goal/s is the most fulfilling work that Nicole could ever do.

Angel Reese,
Performance Improvement Specialist/Corporate Compliance Officer

Angel supports the overall assurance of quality processes for the agency including direction of MOKA’s CARF accreditation activities, gathering consumer stakeholder input and satisfaction, program evaluation, performance improvement and outcomes management. Angel enjoys her role as she is able to see the positive impact of on the lives of people served at MOKA.

Nate Tubergen,
IT Manager

Nate serves the organization in managing the IT Department including support, system maintenance and improvement, and identifying technology solutions that best serve MOKA. Nate believes that non-profits are the true lifeblood of a society, and is proud to be part of the MOKA team.

Tom Miller-Edwardson,
ECR Administrator

Tom manages and administrates Mpower (MOKA’s electronic clinical record) which includes overseeing system maintenance, user training, testing, enhancements, and long-term system development.

Tom loves the challenge of working through complicated problems/learning new things daily and is grateful for the privilege to work with excellent team members who have helped him grow in so many ways.

Hannah Kater,
Executive Assistant

Hannah provides a wide range of administrative and executive support to optimize the effectiveness of the executive leadership team. She loves that her job allows her to be a part of the positive difference being made in the lives of the individuals we serve.

Lisa Perdaris,
Executive Assistant of Programs

Lisa provides executive level administrative support for leadership  and executive leadership and supports the forward movement of agency initiatives related to programming, agency trainings, ORR/licensing processes, committees, quality improvement, CARF standards, and much more.

Lisa appreciates MOKA’s deeply rooted mission and culture.  This is an agency where she is able to openly and safely share input and an agency where she feels her input is valued.  Lisa likes the autonomy she has, which allows for her to be more creative.  Lisa feels very fortunate to work with such an amazing team of leaders.

Samantha Brigham,
Executive Assistant to the MOKA Foundation

Samantha has the privilege of providing administrative assistance to the leadership team while focusing on the growth of the Foundation. Passionate about relationships, Sam’s focus is bridging the connection between MOKA’s internal and external audiences, donor relations, and fundraising. She loves coming to work with people just as passionate about the success of individuals served as she is and is continuously amazed by MOKA’s positive culture and dedication to its mission.

Make a Gift

To make a gift online, click on the Donate button below. You may also mail a check or money order payable to: MOKA Foundation, 715 Terrace Street, Muskegon, MI 49440; or call (800) 644-2434 ext. 648 to make a credit card gift over the phone.

MOKA Foundation is recognized by the IRS as a 501(c)(3) charitable organization, and gifts are tax deductible. We’ll acknowledge your gift with a prompt letter for tax purposes.

If you would like more information, please contact:
Jenna VandeKamp, Development Director of the MOKA Foundation at jvandekamp@moka.org.