Meet our Counselors

Mr. Micheal Augustine
A.A. Liberal Arts, BA Social Sciences Teacher Endorsement, Minnesota West CC & University of Sioux Falls
M.A. Education Curriculum, The College of Saint Scholastica
Michael comes to Mullen from Bishop Machebeuf High School. He has been a Dean of Students, Director of Counseling and an Assistant Principal as well as a teacher, basketball and football coach. He has been a successful college coach in both Mens Basketball and Football and he will be coaching in the boys basketball program at Mullen. He is very excited to be a part of the Mullen community and looks forward to the opportunity of working with students and their families. Michael's wife Joanne is the Director of College Counseling at Arrupe Jesuit High school. 


Ms. Hilary Maxwell
B.A. Communications, Chapman University
M.A. Counseling, University of Denver

Hilary Maxwell has been with Mullen High School since 2013. Prior to becoming a Mustang, she worked in the Cherry Creek School District as a Counselor as well as at an advertising and communications agency in San Francisco. Her passion for growing people into the best version of their self is evident as she continues to advocate and encourage action towards personal goals and dreams. In her free time, Hilary enjoys time in the outdoors with her husband, Daniel, family and friends while also welcoming a good read by a crackling fire.

Janelle Petersen
B.S. Family Studies, Texas Tech University
M.Ed. School Counseling, University of the Southwest
M.S Marriage and Family Therapy, Texas Tech University
Janelle Petersen comes to Mullen from Denver Public Schools, where she worked as a Post Secondary Readiness coordinator for two years. She also worked as a Behavior Health Specialist for the Divsion of Youth Services for thirteen years prior to her time in DPS. Janelle is a Colorado native. She enjoys traveling, playing volleyball, watching movies, eating and spending time with friends and family. Working with young people is her passion and she is excited to get to know the Mullen students and parents.

Andrea Rieger
B.A. Political Science, Colorado State University
M.S. School Counseling, University of Phoenix
Andrea comes to Mullen from Eaglecrest High School, where she worked as a school counselor and a College & Career specialist. A Colorado native, she loves the mountains. She enjoys hiking, skiing and traveling with her husband, Glenn, and two daughters. Seeing students succeed brings great joy to her heart, and she is very grateful for the opportunity to serve the Mullen community.

Ms. Stephanie Santillo
B.A. Anthropology, The College of William and Mary
M.S. Ed in Psychological Services, The University of Pennsylvania 

Stephanie Santillo has worked at Mullen since 2011. She began her career in higher education in 2000, working in admissions at both Ursinus College and the University of Pennsylvania, as well as in career development at St. Joseph's University. Ms. Santillo transitioned to the high school side in 2005 in order to better assist students and families with the college process, and she has been a Colorado resident since 2008. When not proofreading college essays, she and her husband Kevin enjoy spending time with friends and family, traveling, enjoying the outdoors, and hanging out with their amazing dog, Shiloh.


For 7 years, no two days have been the same. The enthusiasm and creativity of Mullen High School, especially our energetic students, keep me happy to pull into the parking lot. The Counseling Program has given me the chance to delve a little deeper into the challenges as well as the gifts of some of our students. Watching them grow in their confidence, resiliency, and self-advocacy is beyond gratifying.

- Hilary Maxwell

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