Meet Our Leadership Team

Margaret Kroese, MSSW, FACHE, CBIS

Executive Vice President & Executive Director

As the Executive Vice President and Executive Director, Margaret leads all Hope Network Neuro Rehabilitation programs and locations, where we employ over 600 clinical, direct support, and professional team members.

Margaret’s impact on the well-being of people with brain injuries and the medical benefits of people who have yet to be injured are more than some can hope to achieve in a lifetime. She has been an advocate for individuals with catastrophic injuries since she started working at Hope Network Neuro Rehabilitation in 1994 as a direct support professional. Since then, she has worked on many public policy initiatives to expand care to those in need, testified on multiple insurance reform proposals over the years and has been an invited speaker at multiple town halls on the subject of auto insurance in Michigan.

Margaret has served in multiple roles for the Michigan Brain Injury Providers Council (MBIPC), the Executive Committee of the Coalition Protecting Auto No-Fault (CPAN), as well as the Brain Injury Association of Michigan (BIAMI). She is also a published author in the Brain Injury Professional, the official publication of the North American Brain Injury Society (NABIS) and the International Brain Injury Associations (IBIA).

She earned her Fellow of the American College of Healthcare Executives (FACHE) in 2019 and holds a Master’s degree in Social Work from the University of Louisville in Kentucky, and a Bachelor of Arts degree in Political Science.

Shane Kistler, MA

Director of Business Operations

Shane joined Hope Network Neuro Rehabilitation in 2010, where he leads the financial planning, capital expenditures, budgeting, contract negotiations, and return on investment analysis for new projects and capital spending.

Shane has a wealth of business to business expertise holding several financial leadership roles, including Vice President of Operations for Tomra North America, Inc., where he was responsible for all finance functions and supervised departments such as Information Technology, Field Operations, and Commodity Sales & Marketing.

Shane earned his Bachelor of Science degree in Business & Managerial Economics form Albion College and his Master of Science degree in Accounting and Business Administration from Walsh College.

Elizabeth Lock, BA

Director of Business Development

Elizabeth has a breadth of experience in the neuro rehabilitation field, she’s held management roles in in business development, marketing, admissions, and transitional and long term residential.

In her current role, she leads the referral development, and marketing and communications departments, overseeing the strategic direction and implementation of comprehensive sales and marketing for Hope Network Neuro Rehabilitation. Her team has played a significant role in creating innovative ways to expand our reach and communicate our ability to provide services on a national level.

Elizabeth is proud graduate of Michigan State University, where she earned her Bachelor of Arts degree in Communications.

Ebony Moore, BA, PHR

Sr. Human Resource Business Partner

Ebony has over 18 years of operational and strategic leadership experience in the healthcare and retail fields. As a Business Partner for the Neuro Rehabilitation division of Hope Network, Ebony develops and implements strategies that support and sustain the functional areas of Human Resources and Employee Recruitment.

Ebony works closely with our leadership team to build and streamline processes for building an inclusive workforce and develop and promote leaders within the organization. In this role, Ebony also oversees a team of recruiters and generalists to support the organization’s overall strategic initiatives.

Ebony earned her Professional Human Resource certification in 2017, and hold an alumnus of Western Michigan University.

Martin J. Waalkes, PhD, ABPP, CBIST, LP

Director of Neuro Rehabilitation

Dr. Waalkes has over 30 years of experience in neuro rehabilitation, working for Hope Network Neuro Rehabilitation that entire time. Martin is a Board Certified Rehabilitation Psychologist who oversees and leads the psychology team, psychology services, clinical activities, and clinical program development for all locations. He is active in providing neuropsychological assessments, counseling, and emotional support and education to our patients and their families.

Martin has presented at several national, state and regional conferences on a variety of topics related to brain injury rehabilitation, and is a published author in the Brain Injury Professional, the official publication of the North American Brain Injury Society (NABIS) and the International Brain Injury Associations (IBIA).

One of his recent accomplishments include leading the development of the Hope Network Acuity Scale© (HAS), a behavioral rating scale that identifies care workload relating to the support and supervision of adults with brain injury, published by The Center for Outcome Measurement in Brain Injury (COMBI).

Martin is a member of several professional organizations, including the American Board of Professional Psychology,  American College of Rehabilitation Medicine (ACRM), the Brain Injury Association of America (BIAA), and the Division 22 Rehabilitation Psychology Practice Committee, part of the American Psychology Association.

He earned his Ph.D. in Clinical Psychology from Michigan State University.

Kris Witters, BA, PHR

Director of Quality and Compliance

As the Director of Quality & Compliance, Kris directs all quality and compliance systems for Hope Network Neuro Rehabilitation and oversees a great team that is responsible for ensuring compliance with policy, accreditation standards (CARF), Adult Foster Care Licensing, MIOSHA, HIPAA, and other regulations, laws, and contracts.

Her years of service in this role have helped Kris to understand what drives customer and stakeholder satisfaction and how to ensure the best possible care to our persons served through quality systems-reporting and data-driven performance measurement and improvement initiatives. In this role, she also oversees outcomes management, stakeholder satisfaction, recipient grievances and appeal processes, staff development and training, and safety and risk management.

Kris received her Professional in Human Resources (PHR) certification from the HR Certification Institute, and earned her Bachelor of Arts in Psychology from Cedarville University in Ohio.

Laura Amenta, MS, OT

Program Director – Grand Rapids

Laura joined Hope Network Neuro Rehabilitation in 2018, where she oversees the program operations and leadership for the transitional, day rehab, and outpatient programs, including program development, financial management, and facility management for the Grand Rapids location.

Previously, Laura was the National Director of Rehabilitation Services for Trinity Health at Home, where she was the liaison to over 300 colleagues in nine states. Before that, she served in various leadership roles at Rusk Institute of Rehabilitation Medicine in New York City, specializing in neuro rehabilitation.

Laura earned her Master of Science degree in Occupational Therapy from Western Michigan University and her Bachelor of Arts in Psychology from Calvin University.

Marcy Bos, BS, OT

Program Director – Kalamazoo

Ms. Bos has been with Hope Network Neuro Rehabilitation since 1985, serving in multiple roles throughout that time. In her current role of Program Director she manages the business operations ensuring high-quality staff performance and service delivery.

Marcy oversees the coordination of services and staff in the clinical, vocational, and residential areas, and the day-to-day management, program growth and development, financial management, budgeting, quality, and crisis and facility management. She also leads the development of new and existing programs to better meet the needs of the patients we serve.

Marcy earned her Bachelor of Science degree in Health Care Administration from Davenport University and is also a Certified Occupational Therapy Assistant.

Sandra Costello, BSN-RN

Program Manager – East Lansing

As Program Manager, Sandra oversees the East Lansing rehabilitation programs, therapy services, and physician services, in addition to all team members that support and care for our patients and residents.

Sandra came to us from Medilodge of Lansing, where she gained experience in both sub-acute rehabilitation and long-term care. In her years there, she served in several capacities, most recently as the Director of Nursing.

Sandra graduated from Michigan State University with her Bachelor of Science in Nursing and received the “Outstanding Undergraduate Student Nurse” award.