Reinventing healthcare one patient at a time
Joseph Giansante
Vice President, Chief Human Resources Officer

Ellis Medicine Joseph Giansante has more than 30 years of experience in human resource management with a strong focus on organizational development.

Prior to joining the Ellis team, he led Human Resources at Buffalo General Hospital of Kaleida Health, Buffalo, NY, a merged health system with a workforce of more than 10,000 employees which includes five hospitals, four long term care facilities, community clinics and a visiting nurse association. Previously, Mr. Giansante was Vice President of Human Resources for People, Inc. in Williamsville, NY and Senior Director of Human Resources and Organizational Development for Bryant & Stratton College.

Mr. Giansante earned his master's degree in education (administration and supervision) from Niagara University, and his bachelor's degree in English from Niagara University. He is certified as a Senior Professional in Human Resources (SPHR) by the National Society for Human Resource Management, and is a member of the American Society for Healthcare Human Resources Administration Association, the National/Regional Society for Human Resource Management and the International Personnel Management Association. He is also a former instructor of human resources management at the University at Buffalo, Daemen College and Bryant & Stratton College.

Management Team

Paul A.Milton
Paul A. Milton
President / Chief Executive Officer
Wendy Rosher
Executive Vice President, Strategic Planning & Integration
Joseph Giansante
Vice President, Chief Human Resources Officer
David M.Liebers, M.D.
David M. Liebers, M.D.
Vice President, Chief Medical Officer
Marc Mesick
Vice President/Chief Financial Officer
AvinashBachwani, MD
Avinash Bachwani, MD
Vice President / Chief Medical Information Officer
Ron McKinnon
Vice President / Chief Technology Officer
Marcia (Marcy)Steiner
Marcia (Marcy) Steiner
Vice President/Executive Director, The Foundation for Ellis Medicine
Leslyn E.Williamson, DNP, MSN, MPH, RN, NEA-BC
Leslyn E. Williamson, DNP, MSN, MPH, RN, NEA-BC
Executive Vice President, Operations & Chief Nursing Officer