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New Principal and Vice Principal Appointments for the 2022-23 School Year
Posted 7/21/22

Message from Dr. John Rubio, MDUSD Chief of Human Resources:


Good Afternoon MDUSD School Communities,

As you may know, it is very difficult to find new employees during the months of June and July. MDUSD decided to move quickly as a District to complete interviews for multiple sites and positions, and we appreciate any feedback that parents and staff submitted to assist us in the process.

MDUSD remains committed to recruit and hire the most qualified candidates for every position within the District. The below new or existing employees have been hired and will also be formally appointed at the first Board meeting of the 2022-2023 school year on August 17, 2022.

We would like to welcome the below individuals into their new roles in Mt. Diablo Unified School District, and we look forward to their important work at each one of our school sites.

Principal Appointments
El Monte Elementary - Jeffrey Miles
Holbrook Language Academy - Silvia Orellana
Sequoia Elementary - Rebecca Vichiquis
Ygnacio Valley Elementary - Gilbert Armenta
El Dorado Middle School - Megan Gemma
Concord High School - Julene Mackinnon

Vice Principal Appointments
Hidden Valley Elementary - Jennifer Tosi
Oak Grove Middle School - Diane Fitzpatrick
Mt. Diablo High School - Josie Kirkland
Mt. Diablo High School - Ryan Murrow
Ygnacio Valley High School - Therron Adams
Mt. Diablo Adult Education - Maureen Campbell

The Human Resources team is still looking to hire an Administrator at our Crossroads site, and Vice Principals at El Dorado Middle School and Rio Vista Elementary. If you know anyone that you think would be amazing, or a teacher who would like to earn a hiring bonus for some of our specific positions, please ask them to apply at



Dr. John Rubio
Chief of Human Resources
Mt. Diablo Unified School District


Previously announced District and School Site administrative appointments for the 2022-23 School Year are here.