Our Team

Leadership Team

Mark Lashley

Chief Executive Officer

Before joining Tarrytown Expocare in April 2023, Mark headed a rapidly growing service agency supporting 3,000 individuals in five states. His prior roles in healthcare have equipped him with a deep understanding of the unique needs and challenges faced by our community.

Blake Colandrea

Chief Operations Officer

With years of leadership experience in the pharmacy industry, Blake passionately manages pharmacy services and customer care by inspiring and motivating his team. He closely collaborates with agencies and pharmacies, prioritizing quality care and championing innovative solutions.

Mary Howard

Chief Financial Officer

Mary, our CFO since 2022, has a rich background in financial reporting and leadership in healthcare and private equity businesses. She is a respected leader with an understanding of details with a focus on creating channels of communication with boards, colleagues, and providers we support.

Marc Altholz

Chief Sales Officer

Marc joined as Chief Sales Officer in 2021, managing sales and marketing. He’s committed to providing superior pharmacy services to those assisting individuals with intellectual developmental disabilities. His team creates innovative services, educational tools, and varied marketing tactics.

Scott Walker

Chief Information Officer

Scott has devoted most of his career to meeting the growing IT needs of long-term care pharmacies and various healthcare environments. He is committed to creating and implementing IT solutions that enhance the quality of care for our supported providers and the individuals they serve.

Conor Feeney

vice president of corporate development

Conor has over a decade of experience in investment banking and corporate development, specializing in M&A, capital-raising, and strategic initiatives. Passionate about the IDD community, he aims to use his expertise to improve the lives of people with disabilities by expanding the reach and capabilities of Tarrytown Expocare’s services.

Clinical Advisory Committee

Zach Corbell, PharmD

Vice president of operations

Zach’s dedication to the IDD community transformed Tarrytown Expocare from a local pharmacy into a national provider. Originally our Pharmacist-in-Charge and now our VP of Operations, his leadership and passion continue to inspire what we do and how we do it.

Kristi Torres, PharmD

director of account management

Clinically minded and community-focused, Kristi leads our account management team. She works closely with providers to overcome challenges and develop solutions while providing excellent care. Her compassion and dedication significantly impact both our pharmacy and those we serve.

Deb Maloy, RN, CDDN

Director of education and development

Deb is a registered nurse with over 38 years of experience specializing in IDD. As a certified developmental disability (DD) nurse, president of the Developmental Disabilities Nurses Association, and our director of education and development, she leads training, webinars, and more.

Kathy Brown, RN, CDDN


With 40+ years in IDD, Kathy is dedicated to advancing DD nursing certification, promoting the Developmental Disabilities Nurses Association, and supporting the IDD and behavioral health community. At Tarrytown Expocare, she shares her passion for medication administration rights while providing helpful resources and industry updates.

Nanette Wrobel, RPh

Director of Business Development

Nanette, a pharmacist with 40+ years of experience, specializes in clinical health and medication education for healthcare professionals who support individuals with IDD. At Tarrytown Expocare, she is a key resource who uses her knowledge to provide clinical insight and educational resources.

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