Maricopa County Executive and Leadership Team

July, 2026

Leadership Overview

Maricopa County has 10 executives leading key functions including administration, information technology, revenue, medical services, and board support.

Driven by a commitment to public service, Maricopa County provides essential regional leadership and fiscally responsible services, ensuring a healthy and safe environment for its residents.

Leadership Roles at Maricopa County

  • Chief of Staff - Peter Mains
  • Chief Information Officer - Richard McHattie
  • Chief Revenue Officer - Gary Ingram
  • Deputy Chief Information Officer - Nathan Young
  • Chief Technology Officer, Enterprise Technology & Innovation - Shea McGrew
  • Deputy Chief Information Officer (Advsvcs) - Neena Scorse
  • Chief of Staff, Board of Supervisors, District 3 - Page Gonzales
  • Deputy Chief of Staff - Carissa Cortez
  • Deputy Chief of Staff- District 1 - Selene Saucedo
  • Chief Medical Officer - Suganya Karuppana
  • Peter Mains - Chief of Staff

    Peter Mains, the Chief of Staff at Maricopa County, directs critical administrative operations and strategic initiatives that support the county's mission of providing necessary public services. Mains oversees the coordination of departmental efforts, ensuring alignment with the county's overarching goals for resident well-being and safety. This leadership position involves managing cross-functional projects and facilitating communication between executive leadership and various county departments. By optimizing internal processes and resource allocation, Peter Mains enhances the efficiency and effectiveness of Maricopa County's service delivery. The role demands a comprehensive understanding of public administration and a proactive approach to problem-solving, ensuring that the county operates with fiscal responsibility and maintains a high standard of public service.

    Richard McHattie - Chief Information Officer

    Richard McHattie, the Chief Information Officer at Maricopa County, architects the county's technology strategy and oversees all information systems. McHattie drives the implementation of innovative technological solutions that enhance the delivery of public services and ensure operational efficiency across all departments. This role is pivotal in safeguarding county data, managing cybersecurity initiatives, and promoting digital transformation to meet the evolving needs of residents. By leading the IT department, Richard McHattie ensures that Maricopa County leverages technology to foster a healthy and safe environment, supporting fiscal responsibility through optimized resource management. The Chief Information Officer's leadership ensures robust, secure, and scalable IT infrastructure, directly impacting the county's ability to serve its population effectively.
    Richard McHattie

    Gary Ingram - Chief Revenue Officer

    Gary Ingram, the Chief Revenue Officer at Maricopa County, spearheads initiatives focused on revenue generation and financial optimization to support essential public services. Ingram directs strategies for maximizing income streams and ensuring fiscal responsibility across county operations. This executive leadership position involves analyzing financial performance, identifying new revenue opportunities, and managing budgetary allocations to sustain the county's mission. By overseeing revenue-generating departments and fostering financial discipline, Gary Ingram plays a crucial part in maintaining the county's capacity to provide a healthy and safe environment for residents. The Chief Revenue Officer's expertise is vital for long-term financial stability and the effective execution of public service mandates.

    Nathan Young - Deputy Chief Information Officer

    Nathan Young, the Deputy Chief Information Officer at Maricopa County, supports the Chief Information Officer in executing the county's technology vision and managing its IT infrastructure. Young focuses on the operational aspects of information systems, ensuring the reliability and performance of technology services that underpin public functions. This role involves overseeing the deployment and maintenance of critical systems, contributing to the county's goal of providing necessary public services efficiently. Nathan Young's efforts are directed towards enhancing digital capabilities and supporting departmental needs, thereby contributing to a safe and healthy environment for residents. The Deputy Chief Information Officer's work is essential for the day-to-day functioning of Maricopa County's technological backbone.

    Shea McGrew - Chief Technology Officer, Enterprise Technology & Innovation

    Shea McGrew, the Chief Technology Officer, Enterprise Technology & Innovation at Maricopa County, drives the strategic direction for enterprise-wide technology solutions and fosters innovation across the organization. McGrew leads the development and implementation of advanced technological frameworks designed to enhance service delivery and operational effectiveness. This executive role is critical for identifying emerging technologies and integrating them to support the county's mission of providing a healthy and safe environment. Shea McGrew's focus on innovation ensures that Maricopa County remains at the forefront of technological adoption, improving fiscal responsibility through efficient resource utilization and forward-thinking solutions. The Chief Technology Officer's leadership cultivates a culture of continuous improvement in technology.

    Neena Scorse - Deputy Chief Information Officer (Advsvcs)

    Neena Scorse, the Deputy Chief Information Officer (Advsvcs) at Maricopa County, directs advanced services within the county's information technology division, focusing on specialized and complex technical solutions. Scorse oversees the strategic planning and execution of critical IT projects that support the county's core functions and enhance public service delivery. This leadership role is instrumental in ensuring that advanced technological capabilities are leveraged to maintain a safe and healthy environment for residents. Neena Scorse's expertise contributes to the robust and secure operation of Maricopa County's IT infrastructure, supporting fiscal responsibility through efficient management of advanced technological resources. The Deputy Chief Information Officer's work ensures the county's technological systems are cutting-edge and responsive.

    Page Gonzales - Chief of Staff, Board of Supervisors, District 3

    Page Gonzales, the Chief of Staff, Board of Supervisors, District 3 at Maricopa County, provides direct strategic and operational support to the Supervisor for District 3, ensuring effective representation and service delivery. Gonzales manages the district office's operations, coordinates legislative priorities, and facilitates communication between the Supervisor, constituents, and county departments. This role is vital for translating the district's needs into actionable county initiatives, contributing to the overall mission of providing necessary public services. Page Gonzales's leadership ensures that District 3's concerns are addressed, supporting the county's commitment to a healthy and safe environment. The Chief of Staff's work is essential for the efficient functioning of the Board of Supervisors' district operations.

    Carissa Cortez - Deputy Chief of Staff

    Carissa Cortez, the Deputy Chief of Staff at Maricopa County, supports the Chief of Staff in overseeing critical administrative functions and strategic projects across the county. Cortez assists in coordinating departmental activities, ensuring that operational plans align with the county's commitment to fiscal responsibility and the provision of essential public services. This position involves managing key initiatives and facilitating communication to enhance the county's ability to maintain a healthy and safe environment for residents. Carissa Cortez's contributions are vital for the smooth execution of executive directives and the overall efficiency of county governance. The Deputy Chief of Staff's role is integral to supporting the county's strategic objectives.

    Selene Saucedo - Deputy Chief of Staff- District 1

    Selene Saucedo, the Deputy Chief of Staff- District 1 at Maricopa County, provides dedicated support to the Supervisor for District 1, managing district operations and constituent services. Saucedo works to ensure that the needs of District 1 residents are effectively addressed through county programs and initiatives, contributing to the provision of necessary public services. This role involves coordinating communication, managing district priorities, and supporting the Supervisor's legislative agenda to foster a healthy and safe environment. Selene Saucedo's efforts are crucial for the responsive governance of District 1, reinforcing Maricopa County's commitment to its citizens. The Deputy Chief of Staff's focus is on enhancing local service delivery and community engagement.

    Suganya Karuppana - Chief Medical Officer

    Suganya Karuppana, the Chief Medical Officer at Maricopa County, directs public health initiatives and oversees healthcare services to ensure the well-being of the county's population. Karuppana leads strategies aimed at promoting health, preventing disease, and responding to public health emergencies, supporting the county's mission to provide a healthy and safe environment. This executive role involves collaborating with healthcare providers, managing medical resources, and ensuring compliance with health regulations. Suganya Karuppana's expertise is critical for developing and implementing effective public health policies that benefit all residents. The Chief Medical Officer's leadership is fundamental to maintaining and improving the health status of Maricopa County.

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    Frequently Asked Questions Regarding Maricopa County Top Executives and Leadership Team

    Who leads Maricopa County?
    Maricopa County is led by Peter Mains (Chief of Staff), along with executives such as Richard McHattie (Chief Information Officer) and Gary Ingram (Chief Revenue Officer).
    Who is part of Maricopa County’s executive team?
    The executive team of Maricopa County includes leaders such as Peter Mains (Chief of Staff), Richard McHattie (Chief Information Officer), Gary Ingram (Chief Revenue Officer) and other senior executives.
    How many executives does Maricopa County have?
    Maricopa County has 10 executives leading key business areas.
    What roles are included in Maricopa County’s leadership team?
    The leadership team of Maricopa County includes roles such as Chief of Staff, Chief Information Officer, Chief Revenue Officer, Deputy Chief Information Officer, Chief Technology Officer, Enterprise Technology & Innovation.