Pacific Clinics Executive and Leadership Team

October, 2026

Leadership Overview

Pacific Clinics has 4 executives leading key functions including financial strategy, human resources administration, legal compliance, and organizational legacy.

Committed to expanding access to essential mental health care, Pacific Clinics delivers comprehensive behavioral health services to diverse populations across California while maintaining a focus on community-based wellness and long-term recovery support.

Leadership Roles at Pacific Clinics

  • Chief Financial Officer - Joseph Wong
  • President Emeritus - Susan Mandel
  • Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources - D'Ana Seivert
  • Chief Legal Officer - Kim Wells
  • Joseph Wong - Chief Financial Officer

    Joseph Wong, the Chief Financial Officer at Pacific Clinics, directs all fiscal operations and long-term financial planning for the organization. Overseeing the allocation of resources for mental health care and substance abuse treatment programs, the Chief Financial Officer ensures the sustainability of services for Medi-Cal eligible families. Wong manages complex budgetary requirements across multiple California counties, balancing operational costs with the mission to provide high-quality behavioral health support. By optimizing revenue cycles and grant management, the Chief Financial Officer strengthens the financial foundation necessary for clinical expansion. Joseph Wong maintains rigorous oversight of internal controls and financial reporting to support the broader organizational goals. Through strategic fiscal management, Wong enables the delivery of critical care services, ensuring that the organization remains a stable and effective provider within the competitive landscape of non-profit healthcare.

    Susan Mandel - President Emeritus

    Susan Mandel, the President Emeritus at Pacific Clinics, provides strategic guidance and historical context to the current leadership team. Leveraging extensive experience in behavioral health, the President Emeritus supports the long-term vision of the organization as a provider of mental health care and substance abuse treatment. Mandel advises on institutional growth and community engagement initiatives, ensuring that the core mission remains central to all operational decisions. Susan Mandel contributes to the continuity of leadership, helping to maintain the standards of care established since the founding of the organization in 1926. By fostering relationships with key stakeholders and community partners, the President Emeritus strengthens the market position of the organization across California. This advisory role involves mentoring current executives and ensuring that the strategic direction aligns with the evolving needs of the populations served by the clinic network.

    D'Ana Seivert - Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources

    D'Ana Seivert, the Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources at Pacific Clinics, coordinates administrative workflows for the human resources department. Managing high-level scheduling and communication, the Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources facilitates efficient operations for the leadership team responsible for talent acquisition and employee relations. Seivert organizes critical documentation and supports the implementation of workforce policies that impact staff across various regional locations. By streamlining internal processes, D'Ana Seivert allows the human resources leadership to focus on building a robust clinical workforce capable of delivering specialized mental health services. This role involves maintaining confidentiality and ensuring that administrative support aligns with the organizational mission of providing compassionate care to children, youth, and adults throughout the service area.
    Kim Wells, the Chief Legal Officer at Pacific Clinics, directs all legal strategy and regulatory compliance efforts for the organization. Overseeing the legal framework for mental health care and substance abuse treatment services, the Chief Legal Officer ensures adherence to state and federal healthcare regulations. Wells manages risk mitigation and contract negotiations, protecting the interests of the organization while facilitating partnerships across the counties of Ventura, Los Angeles, Orange, and San Bernadino. By providing counsel on complex healthcare laws, Kim Wells supports the clinical mission and ensures that all service delivery models meet strict Medi-Cal eligibility standards. The Chief Legal Officer collaborates with executive leadership to navigate the evolving landscape of behavioral health policy. Through proactive legal guidance, Wells secures the operational integrity of the organization, allowing for the continued provision of essential services to diverse families and individuals.
    Kim Wells

    Explore Leadership Teams in Hospitals & Physicians Clinics

    Frequently Asked Questions Regarding Pacific Clinics Top Executives and Leadership Team

    Who leads Pacific Clinics?
    Pacific Clinics is led by Joseph Wong (Chief Financial Officer), along with executives such as Susan Mandel (President Emeritus) and D'Ana Seivert (Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources).
    Who is part of Pacific Clinics’s executive team?
    The executive team of Pacific Clinics includes leaders such as Joseph Wong (Chief Financial Officer), Susan Mandel (President Emeritus), D'Ana Seivert (Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources) and other senior executives.
    How many executives does Pacific Clinics have?
    Pacific Clinics has 4 executives leading key business areas.
    What roles are included in Pacific Clinics’s leadership team?
    The leadership team of Pacific Clinics includes roles such as Chief Financial Officer, President Emeritus, Executive Assistant II To Chief Human Resources Officer and Senior Vice President of Human Resources, Chief Legal Officer.