CalOptima Executive and Leadership Team

July, 2026

Leadership Overview

CalOptima has 5 executives leading key functions including information technology, operations, finance, strategy, and medical affairs.

Driven by a commitment to community well-being, CalOptima operates as a public agency and County Organized Health System dedicated to providing comprehensive health insurance programs. The organization's leadership philosophy centers on collaborative improvement for members and the broader community, impacting healthcare access and quality across Orange County.

Leadership Roles at CalOptima

  • Chief Financial Officer - Nancy Huang
  • Chief Operating Officer - Yunkyung Kim
  • Stategy Public Affairs Chief & Interim Chief Operating Officer - Michael Ruane
  • Chief Information Officer - Kathleen Linder
  • Deputy Chief Medical Officer - Zeinab Dabbah
  • Nancy Huang - Chief Financial Officer

    Nancy Huang, the Chief Financial Officer at CalOptima, oversees all financial planning, management, and reporting. Directing the finance and accounting departments, Huang ensures fiscal responsibility and strategic allocation of resources to support the organization's mission. This leadership position involves managing budgets, analyzing financial performance, and ensuring compliance with all regulatory requirements for a public agency. By maintaining strong financial health, Nancy Huang directly supports CalOptima's commitment to providing essential health services to vulnerable populations. The Chief Financial Officer collaborates with executive leadership to develop long-term financial strategies that sustain and expand the organization's reach and impact within the community.
    Nancy Huang

    Yunkyung Kim - Chief Operating Officer

    Yunkyung Kim, the Chief Operating Officer at CalOptima, manages the day-to-day operational activities and service delivery. Overseeing multiple departments, Kim ensures seamless execution of programs designed to serve low-income children, adults, seniors, and individuals with disabilities. This critical role involves optimizing workflows and resource allocation to enhance operational efficiency and member satisfaction. By streamlining processes, Yunkyung Kim directly contributes to CalOptima's ability to provide accessible and effective health insurance. The Chief Operating Officer also works closely with the executive team to implement strategic initiatives that align with the organization's public health mandate, focusing on service excellence and program integrity across all operational facets.
    Yunkyung Kim

    Michael Ruane - Stategy Public Affairs Chief & Interim Chief Operating Officer

    Michael Ruane, the Stategy Public Affairs Chief & Interim Chief Operating Officer at CalOptima, drives strategic initiatives and manages public relations. Overseeing both strategy development and interim operational oversight, Ruane ensures alignment between public messaging and organizational goals. This dual role involves shaping CalOptima's public image and guiding key operational functions during the transition period. By fostering strong public affairs, Michael Ruane directly enhances community trust and engagement. The Stategy Public Affairs Chief & Interim Chief Operating Officer collaborates across departments to articulate the organization's value proposition and ensure operational continuity, supporting the broader mission of improving healthcare access for all members.

    Kathleen Linder - Chief Information Officer

    Kathleen Linder, the Chief Information Officer at CalOptima, directs all technology infrastructure and digital transformation initiatives. Overseeing the IT department, Linder ensures the secure and efficient operation of systems supporting member services and administrative functions. This leadership role involves architecting scalable solutions that enhance data integrity and accessibility across the organization. By optimizing technological resources, Kathleen Linder directly supports CalOptima's mission to improve healthcare access. The Chief Information Officer also collaborates with other executives to align technology strategy with the company's public health objectives, driving innovation in digital health platforms and ensuring robust cybersecurity measures are in place to protect sensitive member information.
    Kathleen Linder

    Zeinab Dabbah - Deputy Chief Medical Officer

    Zeinab Dabbah, the Deputy Chief Medical Officer at CalOptima, provides critical medical leadership and guidance for healthcare programs. Overseeing clinical strategy and quality initiatives, Dabbah ensures that member care aligns with best practices and regulatory standards. This role involves collaborating with healthcare providers and internal teams to enhance health outcomes for diverse member populations, including children, adults, and seniors. By focusing on clinical excellence, Zeinab Dabbah directly supports CalOptima's commitment to delivering high-quality, accessible healthcare. The Deputy Chief Medical Officer works closely with executive leadership to shape medical policy and drive improvements in patient care delivery across the organization's service areas.

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    Frequently Asked Questions Regarding CalOptima Top Executives and Leadership Team

    Who leads CalOptima?
    CalOptima is led by Nancy Huang (Chief Financial Officer), along with executives such as Yunkyung Kim (Chief Operating Officer) and Michael Ruane (Stategy Public Affairs Chief & Interim Chief Operating Officer).
    Who is part of CalOptima’s executive team?
    The executive team of CalOptima includes leaders such as Nancy Huang (Chief Financial Officer), Yunkyung Kim (Chief Operating Officer), Michael Ruane (Stategy Public Affairs Chief & Interim Chief Operating Officer) and other senior executives.
    How many executives does CalOptima have?
    CalOptima has 5 executives leading key business areas.
    What roles are included in CalOptima’s leadership team?
    The leadership team of CalOptima includes roles such as Chief Financial Officer, Chief Operating Officer, Stategy Public Affairs Chief & Interim Chief Operating Officer, Chief Information Officer, Deputy Chief Medical Officer.