Johanna Medina

Johanna Medina

2019 NACSA Leader

Assistant Director of Academic Affairs, Arizona State Board for Charter Schools

Johanna Medina is the Assistant Director of Academic Affairs for the Arizona State Board for Charter Schools (ASBCS). She is responsible for continuous monitoring and improvement of policies impacting the oversight and accountability of charter schools. She started as the Director of School Quality in 2011, overseeing the new charter applications and quality expansions of existing charters.

Prior to joining the ASBCS, Johanna served as the principal for a charter school in Laveen, Arizona. Her experience as a teacher and Curriculum Instructional Specialist, from 1998 to 2009, led her to focus on the importance of being an instructional leader and establishing sound systems to support improved student achievement.

Her teaching and leadership experience with charter schools has further developed the work she has contributed to the ASBCS. The focus of her work has included refinements to the monitoring and oversight process, implementation of a rigorous new charter application process, and the development of the operational performance framework.

Johanna draws on her educational background and professional experience as an educator, a charter school administrator, and her history with the ASBCS.

Johanna was born in Lima, Peru. She was primarily raised in Union City, New Jersey and Phoenix, Arizona where she grew up in diverse neighborhoods. She holds a BA from Arizona State University.


Most Recent Posts
Public charter schools are not religious schools
In 2025, a divided U.S. Supreme Court preserved an Oklahoma Supreme Court ruling that blocked the application for what could have become the country’s first religious charter school, St. Isidore of Seville...
Communities want unique and innovative schools. Are authorizers ready?
By Jay Whalen From their inception, public charter schools promised to provide innovative ways to meet the students’ learning needs. At NACSA, we’re invested in helping authorizers be responsive to those needs, to ensure that...
NACSA Transition Updates
NACSA’s Board of Directors is thrilled to announce that Guerschmide Saint-Ange, NACSA’s Chief Operating Officer, has been appointed as Interim CEO following the departure of Karega Rausch. Guerschmide’s extensive leadership...