Leadership
The Milestone Senior Services leadership team is deeply rooted in our community. We approach every decision with skill, experience, and compassion. We are ready to listen.
We are committed to having a diverse staff and leadership team. We believe that we can better serve the people in our community when our organization is led by people who reflect the population of our communities. We continue to evaluate and adjust our board and staff recruiting practices to ensure we are true to this value.


Richard Kline
Richard has held leadership roles in healthcare, supporting those with disabilities and age-related needs, for 29 years in for-profit, non-profit, government, academic, and volunteer settings. He has a breadth and depth of experience in quality management, operations and finance, fundraising, state and federal policies, programs and regulations, advocacy, industry association board leadership and accreditation. Richard holds a bachelor’s degree from Michigan State University, a Master of Health Administration degree from Grand Valley State University, and is a member of the Kalamazoo Rotary.

Anita R. Grivins, CPA
Anita graduated with a BBA from Western Michigan University with minors in Latvian and General Business. Upon graduating from WMU, she started work at Plante & Moran where she remained for 16 years. Anita then worked for 10 years as the Director of Finance for the Pokagon Band of Potawatomi Indians in Dowagiac, MI. There she had the opportunity to work with many grants and funding sources, a wide variety of departments, as well as experience casino operations, while attending regular meetings with casino management.
Anita’s community involvement is largely focused on the Latvian community. She is currently the Board Chair of the Latvian Ev. Luth. United Church of Kalamazoo, and Treasurer of the American Latvian Association, which is a national organization uniting Latvians with cultural, educational and political programs to advance goals in America and in Latvia.

Corinne Bradley MSN, RN, CPHQ

Cassandra Boyd

Ruben Osorio-Sanders
Ruben Osorio-Sanders joined Milestone as the director of HR in 2022. Prior to Milestone, Ruben was managing HR processes at a global manufacturing company, and brought a different prospective to our HR needs. He believes in a strong HR team, that can lead initiatives and be instrumental in the direction of an organization. His top priorities in HR are equitable recruiting, employee relations and talent development. His years of experience and education are helping our HR team lead initiatives in DEIA, employee recognition and community outreach. When Ruben is not keeping busy at work, you may see him out on the town with his wife and family, and he enjoys outdoor activities and spending time among his loved ones.

Mark Vlietstra
Mark is a graduate of Western Michigan University and has worked in the health and human services industry for nearly 15 years. After graduation, Mark gained experience with discharge planning in skilled nursing facilities as well as managing specialized residential settings. In 2008, he joined Prudential Financial offering brokerage services while also serving on the Alzheimer’s Association board. Since joining Milestone Senior Services in 2011, Mark has enjoyed working in various leadership roles over the years. In 2022, he left for one year to join his wife Erin, co-owner of Restorative Therapy and Counseling Services, focusing on operations and expansion. In 2023, with his wife’s company exceeding goals, Mark rejoined Milestone as Director of Operations. Mark’s favorite aspect of being a team member at Milestone is working with the many talented and mission driven people who serve our community members. In his free time, Mark enjoys reading, traveling, and following sports.
Board
Milestone is guided by experienced board members who care deeply and hold strong connections throughout our community. Our Board members all reside in our service area.
