About

Meet our Faculty

Meet our Faculty & Staff

Justin-Siena is home to an extraordinary group of committed faculty and staff who care deeply about our students. Our teachers encourage and set high expectations not only for Justin-Siena students but also for each other. We recognize that mastery of our craft is a career-long process, one that Justin-Siena generously supports through professional development opportunities, a mentoring program for new faculty, tuition assistance for higher degrees, and other programs that support ongoing learning for our faculty. Learn why our faculty love their craft and their students below. 

Faculty & Staff Directory

  • Photo of Alex Peterson
    Alex Peterson
    Social Studies
    Instructor of Social Studies
    Since: 2023
    707.255.0950 ext. 777
    Georgetown University - B.A.
    Princeton Theological Seminary
  • Photo of Jamie Powell
    Jamie Powell
    Administrative Support
    Assistant to the Administrative Team
    Since: 2022
    707.255.0950 ext. 674
    University of Portland - B.A.
  • Photo of Matthew D. Powell
    Matthew D. Powell
    Administration
    President
    Since: 2022
    707.255.0950 ext. 641
    University of Portland - B.A.

For more information, contact

List of 1 members.

  • Photo of Joe Welling

    Joe Welling 

    Principal
    707.255.0950 ext. 768

Justin-Siena High School

4026 Maher Street
Napa, CA, 94558
United States
T: 707.255.0950 
F: 707.255.0334
Justin-Siena is a Lasallian Catholic college preparatory community that serves young people in grades 9–12.