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ISDD Team
Meet our Team
Holly York
Executive Director
Holly York is a passionate, dedicated nonprofit leader and proud Atlanta native with more than 25 years of experience driving strategic growth, building strong relationships, and empowering high-performing teams. Known for her collaborative, sustainability-minded leadership, York has consistently helped organizations grow, exceed fundraising goals, and expand their impact in the community.
Throughout her career, York has held executive leadership roles at respected human services nonprofits addressing hunger, homelessness and poverty. As executive director of North Fulton Community Charities, she guided the organization through the COVID-19 pandemic, expanding outreach and enhancing services to meet growing community needs. Her leadership experience also includes key roles with Corners Outreach, MUST Ministries, BCM Georgia and The Drake House.
York currently serves as a commissioner for the Housing Authority of Fulton County and as an advisory board member for Wellstar North Fulton. She is also a graduate of Leadership North Fulton, a program that strengthens community involvement and leadership development. In recognition of her work, York was named Nonprofit Leader of the Year by the Greater North Fulton Chamber of Commerce in 2022. Under her leadership, North Fulton Community Charities was honored as Nonprofit of the Year by the chamber in both 2020 and 2021.
She holds a Master of Science in education with a concentration in human resource development from Georgia State University and a Bachelor of Arts in English from the University of Connecticut.
Thindiwia Bellamy
Program Director
Bellamy leads all Project GRANDD services, supervising case managers, program assistants and
volunteers. She facilitates support groups, coordinates educational sessions, manages outreach and oversees emergency assistance programs. With over 30 years in social services, she has extensive experience working with at-risk seniors and individuals with disabilities. Bellamy holds a BA in Sociology (State University of West Georgia), has pursued advanced studies in Gerontology, and is trained in adult abuse investigations, mandated reporting, trauma-based care, special education law, and parenting curricula. She has earned a Certificate in Grandfamily Leadership (University of Maine), and certification in Quality Standards for Family Strengthening & Support (National Strengthening Families Network).
Patty Riley, CPA
Finance Director/CFO
Riley oversees ISDD’s financial operations, including budgeting, reporting, grant compliance, and audit preparation. She brings extensive experience in financial leadership, having previously served as CFO for Priority Ambulance and National EMS. Patty holds a BBA in Accounting from Georgia State University and ensures ISDD’s finances are managed with strategic insight and accountability.
Shantell Thomas
Program Manager
Thomas manages the logistics for support groups, parenting classes, material assistance, and Family Fun Day events. She coordinates activities with caregivers, manages evaluation data and oversees the Apricot 360 Client Relationship Management system. She is responsible for newsletters, resource emails, and program communications. Thomas holds a BA in Psychology (Spelman College) and is a Registered Behavioral Technician. She is certified in the Quality Standards for Family Strengthening & Support (National Strengthening Families Network) and will be obtaining a Certificate of Grandfamily Leadership in the fall from the University of Maine.
Emily Ferrer
Marketing & Fundraising Manager
Ferrer leads ISDD’s branding, communications, and outreach strategies, including digital and print
marketing. She manages donor engagement, fundraising events, and stakeholder communications. She holds a BA in Psychology (Georgia State University) and has seven years of nonprofit experience, specializing in marketing and event planning. She will be obtaining a Certificate of Grandfamily Leadership in the fall from the University of Maine.
Sherri Feliccia, MS
Lead Social Work Case
Manager
With 19 years of experience and eight with ISDD, Feliccia specializes in working with children, families, and seniors. She holds a BA in Social Work, an MS in Applied Gerontology (Brenau University) and is certified in Grandfamily Leadership from the University of Maine and in the Standards of Quality for Family Strengthening & Support. Feliccia is also trained in Mandated Reporting, Trauma-based Care, Safe Sleep, Special Education Law, Motivational Interviewing and facilitation of Parenting A Second Time Around and 1-2-3 Magic parenting curriculums. She received a 2024 Service Award from the Georgia Division of Aging Services in recognition of her dedication to supporting kinship families.
Sandi Austin
Case Manager
A human services professional with 18 years of experience supporting individuals in crisis, particularly those facing housing instability. Austin has always helped vulnerable populations, including her time as a Senior Logistics Manager for seniors and CPS agent for Georgia DFCS. She holds degrees in Healthcare Administration (Ashworth College and Perdue University) and is certified in Grandfamily Leadership from the University of Maine and in the Standards of Quality for Family Strengthening & Support.
Antalaya Israel, MSW
Case Manager
Israel has extensive experience in developmental disabilities case management and resource navigation. She holds a BA in Psychology (Shaw University) and an MSW (Metropolitan College of New York). She is also a Registered Behavior Technician. Israel will be obtaining a Certificate of Grandfamily Leadership in the fall from the University of Maine.
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Barbara Nakan
Bookkeeper
Nakan has served as ISDD’s bookkeeper since 2015. She is responsible for maintaining accurate financial records, processing transactions, and supporting the organization’s day-to-day financial operations. Her work ensures that ISDD’s finances are managed with consistency, clarity, and care.
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