Rabbi Yossi Rapoport - Judaic Upper School Administrator

Patrick Crowley - Dean of Students 

Mr. Crowley is passionate about supporting a community that provides all of its members with opportunities for personal and intellectual growth. He believes that all great schools are rooted in strong communities.

Patrick received his BA in Cultural Anthropology from Columbia University. Concurrently he completed the Barnard Education Program. He also earned an Masters Degree in Sociology from Brooklyn College. After five years of teaching he was accepted into the SAM program, which allowed him to earn a Masters Degree in School Leadership from Baruch College and a School Leader Certification while apprenticing under the current Deputy Chancellor of New York City Public Schools.

Patrick has a diverse range of teaching and administrative experiences. He worked in a Brooklyn public high school for ten years as a teacher, a curriculum designer, and a teacher trainer. He worked as the Dean of Academics at the prestigious Johns Hopkins University CTY summer program and was the Lead Education Coordinator in a school for at-risk youth in Portland, Oregon. For the past four years he has been a Clerk, teacher, and coach in Bucks County, PA.

Patrick was born and raised in Philadelphia, Pennsylvania.  He lived and worked in New York City for 15 years. He and his wife have a 6-month old daughter they look forward to raising in Orange County.


Rochel Leah Stillerman - Director of Student Life

Mrs. Stillerman, her husband Rabbi Tzali, and their children, serve as the Chabad Shluchim in Aliso Viejo, California.

I have been the leading teacher and Mashpia in the Upper School for the past decade and I served as special advisor to the Administration. I have a vibrant approach to teaching and enjoy weaving life lessons into each class. I have a scholarly approach to Judaic learning and I am devoted to the well-being of the students, I am excited to be joining the administrative staff of the Upper school.

I will be working in developing Judaic curriculum as well as working with the B’nos youth directors as a supervisor, helping them plan engaging and meaningful programs for the students.  I will be advising students in religious values, life goals, and general emotional growth. I will also be available daily to meet with students to oversee their progress.

Marjan Jahanfard - Middle and High School Math Teacher

Marjan graduated cum laude from University of Pittsburgh with a Bachelors of Science in Mathematics and Psychology with a minor in French. She then earned her Master’s degree in Business Administration (MBA) from University of Pittsburgh. After working in the corporate world for several years, she received her teaching credential in K-12 mathematics also from University of Pittsburgh.  For the past 6 years, Marjan has taught a variety mathematics classes at the Hebrew Academy ranging from general math to pre-calculus. 


McKenna Harkins - Middle and High School Science Teacher

I am thrilled to be returning to the Hebrew Academy family for my fourth year of teaching.  After growing up in Huntington Beach, I attended college in San Diego where I graduated Summa Cum Laude and a Bachelor's Degree and teaching credential. I now live in South Orange County with my husband and young son, Fisher.  Middle School Science holds a special place in my heart, where I love to engage students in rigorous scientific learning that is relevant to their lives. I do my best to provide consistent guidance, support, challenge and encouragement. See you in the lab!  

Dr. Mary Greer - x-stream Lab Coordinator 

I was born and raised in Southern California, graduated from UC Irvine in biology and was a Clinical Nutritionist before starting a family. My husband and I are blessed with four fantastic daughters and 13 grandchildren!

I began teaching at the Hebrew Academy in 1981. It was my very first time teaching young people.  I loved it so much I went back to Irvine and earned my Teaching Credential. I have continued teaching and learning ever since.  I earned a Ph.D. in molecular biology in Utah and I have taught math and science in Middle School, High School, and college.

I love to read, particularly science books and I am an avid and Master gardener.  I love children and believe time spent with and for them is the most honorable time spent for the future of humanity.  They bring beauty, growth, love, and awe to my life and I am most grateful for them and the opportunities I have had to participate in the lives of many, many young people. I am so happy to be able to come back to where it all began and be part of this wonderful community again.

Lisa Lopez - Curriculum Specialist/Special Student Services

I have an extensive background in education as a Teacher, Academic Coach, and Curriculum Specialist. I hold a Bachelor’s of Art Degree in History, Liberal Studies and Teaching Credential from California State University, Long Beach in California.  I also have a Masters of Education in Curriculum and Instruction and I am currently a doctorate student of Education with Concordia University. 

My personal interests include spending with time my family, including my husband and two highly energetic sons.  We enjoy traveling, musicals, museums, and spending time in nature.  

Lauren Adler - Middle School English Teacher


I have always been passionate about educating our future leaders, and I knew from an early age that I would become a teacher. As a result, I have been in the field of education for over twenty years. I have taught Language Arts, Math, Science, and Social Studies in elementary and middle school, up to grade 8, as well as high-school English and History. Born and raised in L.A, I have my degree from UCLA, having studied Communications, Education, and Liberal Arts. In addition, I earned my certification in supervision and administration. I also had the unique opportunity to study English and Education at the University of Essex in Britain. I then was assistant head of school and teacher at a pre-preparatory Montessori school.

One of my greatest accomplishments in my teaching career  was receiving the National Beth A. Lake Award for my Writers' Workshop program and receiving a grant for my class.  

Dorian Shiver - 6th Grade Humanities Teacher

My name is Dorian Siver, and I am the 6th grade General Studies teacher at The Hebrew Academy. I was born in Albuquerque, New Mexico.  My parents, who were both teachers, instilled in me a passion for learning at an early age. My love of language led me to the stage, where I performed in plays throughout middle and high school, and went on to study theatre at the University of New Mexico. After earning a Master’s Degree in Education, I spent the first three years of my career in a dual language classroom. In 2013 I relocated to California, and became a STEM instructor in middle school. I am thrilled to bring my skills and experience to the Academy.

Jonathan Zoltan - Middle School Athletics Teacher

My name is Jonathan Zoltan (Coach). I have been a PE and after school sports coach for thirteen years. Over my years of coaching I have worked at the high school, middle school, and elementary grade levels. I even coached division one college baseball for a year. I am proud to say that I will be starting my fourth year as the PE coach at the Hebrew Academy. Working at the Hebrew Academy and being apart of the community here has been a great pleasure. I couldn't be more excited to start the next school year and work with your students. 

Go Rams!!