Superintendent
Dr. Brett Geithman | Superintendent
bgeithman@lcmschools.org (415) 927-6960
Karmela Cleary | Executive Assistant: Superintendent & HR
kcleary@lcmschools.org (415) 927-6960 x3202
Biography
Dr. Brett Geithman has proudly served as Superintendent of the Larkspur-Corte Madera School District since 2017. He believes exceptional schools are built through meaningful stakeholder engagement, high expectations, continuous improvement, and a shared commitment to student success. Known for bringing together diverse stakeholder groups to create a common vision and align resources, he has partnered with students, families, staff, trustees, and community members to strengthen school culture and improve outcomes for all students.
In 2024-25, Dr. Geithman led LCMSD’s largest community engagement effort in decades. Through more than 1,200 stakeholder inputs from students, staff, families, alumni, and community members, the district developed Vision 2036, a shared roadmap that reflects the community’s aspirations for the future of LCMSD schools.
As a learning leader, Dr. Geithman has focused much of his career on advancing research-based instructional practices, including literacy, Cognitively Guided Instruction (CGI) in mathematics, personalized learning, and the thoughtful balance of wellness and technology. He has been featured on educational podcasts discussing artificial intelligence in schools, organizational visioning, stakeholder engagement, leadership, and high-yield professional development models that create sustainable change in schools and districts.
Under Dr. Geithman’s leadership, all three LCMSD schools have been recognized as California Distinguished Schools. Hall Middle School was also designated a California Schools to Watch and was selected as one of only two secondary schools in California to receive National Distinguished School recognition.
As a recognized presenter and facilitator, Dr. Geithman has delivered professional learning and presentations throughout the country. Most recently, he presented at AASA’s National Superintendents’ Conference on a continuous improvement framework that has guided major LCMSD initiatives, including equitable grading practices, school safety, and technology implementation. He is also an ACSA Certified Leadership Coach.
Under his leadership, LCMSD was awarded a $900,000 STOP School Violence Prevention Grant to strengthen school safety systems, prevention strategies, and student supports. He has also collaborated with leading educational researchers, including Stanford University’s Dr. Jo Boaler, on studies related to growth mindset and mathematics achievement.
Prior to joining LCMSD, Dr. Geithman served as Assistant Superintendent of Educational Services and Executive Director of Human Resources for Manhattan Beach Unified School District. From 2008 to 2013, he served as Principal of Alvarado Elementary School in Long Beach Unified School District, a teaching and demonstration school recognized for its work in literacy. Earlier in his career, he served as Assistant Principal in Los Alamitos Unified School District and taught at both the elementary and secondary levels in Long Beach.
Dr. Geithman has also served in higher education as an adjunct professor at California State University, Long Beach, teaching in both the Doctor of Education and Master’s in Educational Administration programs, and at the University of Southern California in the Master of Arts in Teaching program.
Dr. Geithman earned his Doctor of Education from the University of Southern California, where his dissertation focused on growth models used to determine teacher and school effectiveness.
He and his wife, Kristy, are proud parents of two LCMSD alumni. Their oldest child attends New York University, and their youngest attends Redwood High School.


