John A. Darin, President & CEO
As President & CEO of NADAP, John oversees the entire Agency’s operations. He has over 25 years of diversified programmatic and administrative experience in social services.

Mr. Darin serves as a consultant to the U.S. Department of Justice’s Office of Juvenile Justice and Delinquency Prevention Division and the U.S. Department of Education. Mr. Darin also serves on the New York City Human Resources Administration’s Citizens Advisory Committee. He is a member of the Executive Committee of The Association for A Better New York (ABNY). In 1998, he was selected as a national fellow leader of the Join Together National Fellow Leadership Program.

Mr. Darin has developed a curriculum, funded by the New York State Empire State Development Corporation called “Skills Development Training” and has trained over 300 members of the Teamster's Local 456 on techniques used to enhance their work performance.

Mr. Darin holds a Bachelor’s Degree in Business Administration from Bernard M. Baruch College. He is also a New York State Credentialed Alcoholism and Substance Abuse Counselor (CASAC) and is a faculty member of the New York State Office of Alcoholism and Substance Abuse Services’ Academy of Addiction Studies.

Gary Stankowski, Senior Vice President
As NADAP’s Senior Vice President, Gary has complete oversight of the organization’s New York City operations including Assessment, Case Management, Employment and Training Services as well as contract management for New York City and State funded programs. In addition, Gary oversees Human Resources, Information Technology and works on development activities for the organization.

Mr. Stankowski joined NADAP in July 1998 and during his tenure has developed, implemented and managed program services in addition to providing executive leadership for the Agency.

Prior to joining NADAP, Gary worked for 15 years in public and private agencies managing programs and delivering services to a variety of special needs populations.

Gary holds a Master’s Degree in Health Administration from the New School University.

Lizzette Dunn-Barcelona, Vice President of Program Services
Lizzette Joined NADAP in November 2011. She oversees all case management, employment and training programs and also has general administrative responsibilities for NADAP.

Most recently, Lizzette worked at Sinergia Inc. where she was responsible for residential and nursing services, housing and Medicaid service coordination for individual with developmental disabilities.

Prior to Sinergia, Lizzette worked at STRIVE/East Harlem Employment Services where she was responsible for the development of funding opportunities, and employment and social service programs for low-income and formerly incarcerated individuals.

Lizzette Dunn-Barcelona holds a Master’s Degree in City and Regional Planning from Pratt Graduate Institute.