The Yalow Charter School Staff

Ross T. Lyon, MD, FACS, Chairman

Dr. Lyon is a graduate of the University of Chicago and the Pritzker School of Medicine.  Dr. Lyon has a private practice, Vascular and Endovascular Private Practice, Vein Specialists of New York, and has been an Attending in Surgery at

Sandra Hayes, Ph.D, Board Secretary

Professor of Mathematics at City University of New York Professor of Mathematics at City College and a Visiting Scholar at the Graduate Center.  Researcher and teacher at universities in Germany and France for over 20 years.  A delegate to the

Debra Dennard, Ph.D

Dr. Dennard is a psychotherapist with Epic Long Island. She conducts child and family psychotherapy and administers psychological evaluations.

Alec H. Diacou, Executive Director and Founder

Founder and Executive Director. Project finance specialist and financial advisor for state and local governments.  Bronx non-profit organizer addressing economic development, senior services, and childhood obesity epidemic.  Restoration of historic Bronx homes.  Economist, and parent of 3 sons graduated from

Krisztina Geosits

Krisztina Geosits is a Managing Director at Accenture Consulting, specializing in Treasury and Risk Management with a recent focus on artificial intelligence–driven practices. She has worked extensively with leading financial institutions across the United States, EMEA, and Asia, advising on