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 Brian Cassayre
    Brian Cassayre '98
    Facilities and Maintenance
    Director of Facilities
    Since: 2011
    707.255.0950 ext. 680
    Californai Polytechnic State University - B.S.
  • Photo of Elaine Cavalin
    Elaine Cavalin
    Science
    Instructor of Science
    Since: 2019
    707.255.0950 ext. 733
    South Dakota State University - M.Ed.
  • Photo of Steve Cavalin
    Steve Cavalin
    Mathematics
    Instructor of Mathematics
    Since: 2023
    707.255.0950 ext. 773
    University of Hawaii - B.A.
    Sonoma State University - M.A.
  • Photo of Jeffrey Chappell
    Jeffrey Chappell
    Science
    Instructor of Science
    Since: 1993
    707.255.0950 ext. 639
    San Diego State University - M.A.
  • Photo of Emily Ciabattari
    Emily Ciabattari
    English
    Instructor of English
    Since: 2008
    707.255.0950 ext. 593
    University of California, Davis - M.A.
  • Photo of Derald Cook
    Derald Cook
    Transportation
    Bus Driver
    Since: 2007
    707.255.0950
  • Keith "Mr. Keith" Cygan
    Residential Life
    Campus Coordinator
    Since: 2024

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.