Dr. Raul Cardenas Jr, PhD - President & Chief Executive Officer

raul.cardenas@mullenhigh.com| Ext. 3300

Dr. Raul Cardenas, Jr, was born in El Paso, Texas.  He joined the Mullen family in May 2019 assuming the role of President & Chief Executive Officer. He earned his Bachelor’s Degree from Pepperdine University, his Masters from Northern Arizona State, and his PhD from Arizona State University (ASU).

Dr. Cardenas comes from a family of educators and learned very early the value of listening.  That early experience led him to higher education. Along the way, he started two charter high schools in Arizona for high-risk groups, so that those students would be on track to college. Since that experience 15 years ago, Cardenas has continued working to get young people into education pipelines. “In our society, we need to make sure people have opportunities to fulfill their dreams,” Cardenas says. “I want to positively impact every student.”

Prior to his current position, he worked as the Vice Chancellor for Student Affairs for the University of Colorado, Denver. During his long tenure at both CU Denver and the University of Northern Colorado, he has become aware that Colorado has some of the lowest rates in the country for students going to college. It is a statistic that has motivated his work.

Dr. Cardenas’ experience in leadership, retention and access-related issues, and his extensive experience in education; particularly in enrollment management, marketing and pre-collegiate program development and implementation will ensure a partnership that will continue to enhance the Mullen High School community.




Mr. Jeffrey M. Howard - Principal 
howard@mullenhigh.com | Ext. 3300

Jeffrey M. Howard has spent his entire career in Catholic education at the high school level. He earned his bachelor’s degree in English and Secondary Education from the Catholic University of America and his master’s degree in Creative Writing from Regis University. Jeff began his teaching career in Washington, DC. at Bishop McNamara High School, a school in the Holy Cross tradition. He returned to his native Colorado and his alma mater Regis Jesuit High School in 1994 as an English teacher and, over a 20-period, served in many roles including Assistant Principal for Faculty and Curriculum for the Girls Division and Acting Principal for the Boys Division. He has spent the last four years as the Director of Ignatian Mission Formation for the Jesuit Schools Network.

Jeff is a gifted educator-leader, and is organized, collaborative, and articulate.  In his years working in high schools, he has come to understand and support Catholic education and the spirit which underlies it. He is well versed in school leadership and has a passion for working with teachers and students alike.

Jeff enjoys reading, going to movies, playing the guitar and jogging and is married to Caroline, herself a Catholic high school teacher with over 20 years’ experience. They have three college-aged children: Ian, Matthew and Kateri.


Dr. Mary Beth Porter -  Assistant Principal - Curriculum and Instruction
porter@mullenhigh.com | ext. 3310

Betsy is a Colorado native. She began her career in science receiving a BS in Microbiology from the University of Notre Dame in 1984 and a Doctoral Degree in Molecular Biology from Baylor College of Medicine in 1990. She worked as a research scientist at the Fred Hutchinson Cancer Research Center in Seattle for several years before staying home with her children. While her children were young, Betsy loved being at home with them, and eventually moved back to Colorado and received a Master's of Theological Studies from Madonna University in 2005. She began teaching at Mullen that same year as a theology and occasional science teacher. Betsy was Theology Department Chair for several years. She became the Assistant Principal for Curriculum and Instruction in 2015. Today she continues as Assistant Principal for Curriculum and Instruction and as a member of the Theology Department, primarily teaching Bioethics. Mullen has been an amazing place to teach and grow as a person. She feels especially blessed to be in a Lasallian, Catholic environment that is both academic and strongly relational. 


Mr. Joe Welling -  Assistant Principal - Curriculum and Instruction
joe.welling@mullenhigh.com | ext. 3352 

After receiving his bachelor's degree in Psychology from Xavier University, Joe's commitment to Catholic education began in 2008 as a volunteer teacher. Since joining the Mullen community in 2011, he has served as an English teacher, Director of Student Life, Dean of Students, and head cross country coach. Joe has also been assisting regional Lasallian initiatives as a District of San Francisco New Orleans representative for the Regional Council of Young Lasallians since 2015. Joe also holds his MA in Educational Leadership from St. Mary's University of Minnesota. When not at Mullen, Joe can be found running, hiking, and spending time with his wife, Alyssa.   




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