Our Management

At Intervention Associates, our senior managers not only guide the organization, but also work side-by-side with our care management staff to devise the best solutions for families and their loved ones. They also work hands-on with professional advisors to help them get the support they need for their clients.

Louis D. Horvath, MA
Executive Director

Lou Horvath joined Intervention Associates in 2007. In addition to his role as top administrator, Lou works with professional referral sources—attorneys, trust officers, financial planners, medical advisors and others—to identify the best combination of services to meet the care management and home care needs of their clients.

Lou’s diverse experience in health care includes a specialty in psychiatric and addictions services. He has honed his management skills and best-practices expertise over decades in chief executive positions at multi-hospital health systems, community-based organizations and mental health centers.

Lou earned his master’s degree from Temple University. He is an adjunct faculty member at St. Joseph’s University in Philadelphia, where he teaches health administration to both undergraduate and graduate students. He also serves as an adjunct instructor at the University of St. Francis in Joliet, Illinois.

Lou is a fellow of the American College of Healthcare Executives, and is a certified member of both the Association of Behavioral Health Executives and the National Association of Professional Geriatric Care Mangers. He is also a member of the Estate Planning Councils of Bucks, Chester, Delaware, Montgomery and Philadelphia counties. Lou designed and conducts a professional leadership workshop for national, state and regional groups.

Maxine Scherz, BSN, RN
Director of Client Services

Maxine Scherz joined Intervention Associates in 2005. In her role as Director of Intakes and Community Resources she collects clinical information and assigns appropriate care managers; supervises and provides consultative support to Intervention Associates’ care managers and home care staff; and interacts directly with clients, family members and professional referral sources.

Maxine is a registered nurse who holds a Bachelor of Science in Nursing from Temple University. Her extensive experience includes addictions, public health, and adolescent and adult psychiatric nursing. She has served as nurse coordinator of the Dual Diagnosis Adolescent Unit of Northwestern Institute in Fort Washington, Pennsylvania, and as nurse manager of Abington Memorial Hospital’s Medical Psychiatric Unit in Abington, Pennsylvania. At Abington Hospital, Maxine co-created and coordinated the Medical-Surgical/Psychiatric RN/LPN Mentorship Program. The program received the Big Brother/Big Sister award for best new community mentoring initiative.

Dianna J. Rienstra, CPA
Chief Financial Officer/Corporate Controller/Treasurer

Dianna Rienstra serves as Chief Financial Officer/Corporate Controller/Treasurer of the Friends Life Care System and its subsidiary corporations Intervention Associates and Friends Life Care. In this role, she oversees, coordinates and supervises all finance and technology needs for Intervention Associates.

Dianna joined Friends Life Care System in 2007, after a long, successful career in public accounting where her primary expertise was in the area of audit, tax and consulting services for not-for-profit organizations.

A graduate of Montclair State University in Upper Montclair, New Jersey, Dianna holds a Bachelor of Science degree in Business Administration with a major in Accounting, and is licensed as a Certified Public Accountant in Pennsylvania. She is a member of both the American Institute of Certified Public Accountants (AICPA) and the Pennsylvania Institute of Certified Public Accountants (PICPA).

Daryl MacKeverican, BA
Director of Business Development

Daryl MacKeverican is a new addition to Intervention Associates' management team, joining the organization in 2010. In her role as Director of Business Development, she builds and nurtures relationships with referral sources to help identify services and facilitate solutions for clients. She is also charged with monitoring guardianships, trusts, powers of attorney and representative payee services.

Daryl has more than eight years of experience in the field of special needs trusts. Previously, she served as Director of Trust Administration for The Arc Community Trust of PA. There, she focused largely on special needs trusts and the disability, legal, and educational communities.

Daryl earned her bachelor’s degree from Temple University. She is a past board member of The Arc of Montgomery, Berks and Bucks Counties, and has extensive volunteer and advocacy experience in the disability community.

Sandra Grant, BA
Home Care Coordinator

Sandra Grant has worked with Intervention Associates since 1999. Over the years, she has played a variety of integral roles serving the organization. In 2010, she joined the management team with her promotion to Home Care Coordinator. Sandra brings to this post 13 years of experience in the nursing home and private home care environments. Previously, she held management positions at Bryn Mawr Terrace and Senior Helpers, both on Philadelphia's Main Line. Her expertise includes professional staffing, customer relations, payroll processing, staff supervision and general oversight of case management.

Sandra combines her business acumen, mentoring and supervisory experience, and her outstanding interpersonal skills in her current position overseeing Intervention Associates' home care services. She holds a Bachelor of Arts degree in Business Administration from Manchester Business School in Jamaica.