Contra Costa County, CA Executive and Leadership Team

June, 2026

Leadership Overview

Contra Costa County, CA has 4 executives leading key functions including information technology, administration, finance, and health services.

Driven by a commitment to public service, Contra Costa County, CA provides comprehensive public services across the San Francisco Bay Area, managing diverse operations from healthcare to IT infrastructure and engineering projects.

Leadership Roles at Contra Costa County, CA

  • Deputy Director & Deputy Chief Financial Officer, Health Services - Paul Reyes
  • Chief Information Officer - Marc Shorr
  • Deputy Chief of Staff - Lea Castleberry
  • Chief of Staff, Contra Costa County - Jennifer Quallick
  • Paul Reyes - Deputy Director & Deputy Chief Financial Officer, Health Services

    Paul Reyes, the Deputy Director & Deputy Chief Financial Officer, Health Services at Contra Costa County, CA, manages financial operations and strategic planning for the county's health services. Reyes oversees the fiscal health of medical facilities and public health programs, ensuring resources are allocated effectively to meet community healthcare needs. This critical position involves developing budgets, monitoring expenditures, and identifying financial efficiencies within the health services sector. Paul Reyes's financial acumen supports the delivery of comprehensive healthcare services across the San Francisco Bay Area, impacting patient care and public health outcomes. The Deputy Director & Deputy Chief Financial Officer's responsibilities are integral to maintaining the operational capacity and financial stability of Contra Costa County's health system.

    Marc Shorr - Chief Information Officer

    Marc Shorr, the Chief Information Officer at Contra Costa County, CA, directs the county's information technology infrastructure and strategy. Shorr oversees the development and implementation of technology solutions that support diverse county operations, including healthcare facilities, legal services, and administrative functions. This leadership role involves ensuring the security, reliability, and efficiency of the county's IT systems, which are critical for delivering public services across the San Francisco Bay Area. By managing technology resources, Marc Shorr enables departments to leverage digital tools for enhanced service delivery and operational effectiveness. The Chief Information Officer's responsibilities extend to planning for future technological advancements and maintaining robust data management practices to support community governance and public safety initiatives.

    Lea Castleberry - Deputy Chief of Staff

    Lea Castleberry, the Deputy Chief of Staff at Contra Costa County, CA, supports the Chief of Staff in overseeing administrative operations and strategic initiatives. Castleberry assists in coordinating departmental efforts across various functions, including human resources, finance, and public services, ensuring alignment with the county's governance objectives. This role involves facilitating communication between executive leadership and county departments, contributing to the efficient management of community resources and public programs. Lea Castleberry plays a part in implementing policies and operational improvements designed to enhance the delivery of services to residents throughout the San Francisco Bay Area. The Deputy Chief of Staff's work supports the county's mission of providing essential public services through effective administration and strategic planning.

    Jennifer Quallick - Chief of Staff, Contra Costa County

    Jennifer Quallick, the Chief of Staff, Contra Costa County at Contra Costa County, CA, directs high-level administrative functions and strategic planning for the county government. Quallick oversees the coordination of multiple departments, including legal services, information technology, and engineering projects, ensuring operational synergy and alignment with public service mandates. This executive position involves advising county leadership on policy matters and driving initiatives that enhance community governance and resident services throughout the San Francisco Bay Area. Jennifer Quallick's leadership is central to managing the county's diverse operations and fulfilling its mission of providing essential public resources. The Chief of Staff's role is pivotal in maintaining the effective functioning of the county's administrative and operational framework.

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    Frequently Asked Questions Regarding Contra Costa County, CA Top Executives and Leadership Team

    Who leads Contra Costa County, CA?
    Contra Costa County, CA is led by Paul Reyes (Deputy Director & Deputy Chief Financial Officer, Health Services), along with executives such as Marc Shorr (Chief Information Officer) and Lea Castleberry (Deputy Chief of Staff).
    Who is part of Contra Costa County, CA’s executive team?
    The executive team of Contra Costa County, CA includes leaders such as Paul Reyes (Deputy Director & Deputy Chief Financial Officer, Health Services), Marc Shorr (Chief Information Officer), Lea Castleberry (Deputy Chief of Staff) and other senior executives.
    How many executives does Contra Costa County, CA have?
    Contra Costa County, CA has 4 executives leading key business areas.
    What roles are included in Contra Costa County, CA’s leadership team?
    The leadership team of Contra Costa County, CA includes roles such as Deputy Director & Deputy Chief Financial Officer, Health Services, Chief Information Officer, Deputy Chief of Staff, Chief of Staff, Contra Costa County.