Welcome New Herndon High School Assistant Principals!

Herndon High School is excited to welcome Mr. Chrismer as a  new Assistant Principal. With more than 15 years of experience in education, Mr. Chrismer brings a strong background in instructional leadership, student support, and school community engagement.

Mr. Chrismer served as Assistant Principal at Culpeper County High School, for 5 years where he was responsible for supporting more than 600 students in grades 9–12. In this role, He supervised Math, ESOL, PE,  Career and Technical Education (CTE), and Agriculture.

Throughout his time as an administrator, Mr. Chrismer played an active role in hiring and mentoring teachers, conducting classroom observations, supporting the school's Multi-Tiered Systems of Support (MTSS), leading freshman orientation efforts, serving on the crisis response team, and collaborating with staff to strengthen instructional practices and student achievement. He is passionate about building strong relationships and creating an inclusive school environment where all students feel supported and empowered to reach their full potential.

Prior to becoming an assistant principal, Mr. Chrismer served as an Assistant Director of Student Activities at Thomas A. Edison High School in Fairfax County. In addition to teaching, he led the Health, Physical Education, and Driver Education Collaborative Learning Team, helped expand opportunities for student clubs and activities, supported athletic and extracurricular events, and developed instructional resources to better serve English Learners.

Mr. Chrismer earned a Master of Education in Educational Leadership from the University of Mary Washington  and holds a Bachelor of Science in Health and Physical Education (PK–12) from Bridgewater College.

Mr. Chrismer is committed to fostering a positive school culture, supporting excellence in teaching and learning, and partnering with students, staff, and families to help every Hornet succeed. We are thrilled to welcome him to the Herndon High School community and look forward to the leadership, experience, and enthusiasm he brings to our school.

Herndon High School is pleased to welcome Dr. Robert Lewis as a new Assistant Principal. Dr. Lewis brings more than two decades of educational leadership experience in public, private, charter, and international schools, with a proven record of fostering academic excellence, supporting student success, and building strong school communities.

As a bilingual Leader, Dr. Lewis spent five years as Middle School Principal at The American School Foundation in Mexico City, where he led the International Baccalaureate Middle Years Programme (IB-MYP), implemented data-driven instructional improvements, and helped students achieve exceptional academic growth. Under his leadership, students consistently performed at or above the 91st percentile in language usage, reading, and mathematics, reflecting his commitment to continuous improvement and high expectations for all learners

Most recently, Dr. Lewis served as an Assistant Principal and as a Dean of Students  in Alexandria City Public high School. In this role he lead special education, facilitated Student Support Team (SST) meetings, ensured full compliance with special education regulations and IDEA requirements, and coordinated the high school's New Teacher Mentor Program. He partnered with community organizations to expand student access to social services, academic tutoring, and career opportunities, contributing to a significant reduction in student suspensions. Dr. Lewis has  supervised a multitude of instructional departments to include social studies, ESOL, World language and special education. He has  coached teachers in mathematics and science, and supported multilingual learners through rigorous, student centered instruction.

Dr. Lewis has served in a variety of leadership roles across the United States and internationally. As Campus Executive Director for Gestalt Community Schools in Memphis, Tennessee, he led a K–8 charter school, strengthened instructional practices, and significantly reduced chronic absenteeism while fostering a positive school culture. At Lausanne Collegiate School, he successfully guided the middle school through the challenges of the COVID-19 pandemic, maintained high levels of student engagement, and led a successful accreditation process.

Dr. Lewis holds a Doctor of Education in School Administration from the University of Pittsburgh, a Master of Business Administration in Human Resource Management from the Keller Graduate School, and a  Master of Arts in History from the University of Pittsburgh, and a Bachelor of Science from Indiana University of Pennsylvania.

Dr. Lewis is dedicated to building strong relationships with students, families, and staff while creating a safe, inclusive, and engaging learning environment where every student can thrive. His passion for instructional excellence, student support, and collaborative leadership makes him an outstanding addition to the Herndon High School community!