The IMSS Executive and Leadership Team

June, 2026

Leadership Overview

The IMSS has 10 executives leading key functions including strategy, technology, and medical operations.

Dedicated to health and social protection, The IMSS combines medical research and practice with resource management, providing stability and security to over half of Mexico's population and solidifying its position as the largest institution of its kind in Latin America.

Leadership Roles at The IMSS

  • Chief Executive Officer - Gonzalo Vidal
  • Founder & Chief Executive Officer - Patricia O'Donnell
  • Founder & Chief Executive Officer - Anan Al-Arda
  • Founder & Chief Executive Officer - Patricia Sandoz
  • Chief Technology Officer - Zeeshan Gulzar
  • Chief Medical Officer - Evelyn Sanchez Ramos
  • Jefe De Personal - Ismael Berny
  • Jefe De Grupo De Personal - Yesica Azucena Castillo Velez
  • Jefe De Personal - Omar Mondragon
  • Jefe De Personal - Rosario Granados
  • Gonzalo Vidal - Chief Executive Officer

    Gonzalo Vidal, the Chief Executive Officer at The IMSS, directs the overarching strategy and operational framework for Mexico's largest health and social protection institution. Vidal's leadership ensures the seamless integration of medical research, clinical practice, and resource management, aligning with the organization's mission to provide stability and security to insured workers, pensioners, employers, health professionals, and the general public. This executive guides the institution's commitment to serving over half of the Mexican population, driving initiatives that enhance healthcare accessibility and social welfare across the nation. Vidal's strategic vision is crucial for maintaining The IMSS's status as a leading entity in Latin America, focusing on sustainable growth and continuous improvement in service delivery. The Chief Executive Officer's role involves fostering collaboration among diverse stakeholders to uphold the institution's foundational principles established in 1943. Gonzalo Vidal's executive oversight is paramount in navigating the complexities of public health and social security provision on a national scale.

    Patricia O'Donnell - Founder & Chief Executive Officer

    Patricia O'Donnell, the Founder & Chief Executive Officer at The IMSS, established the foundational vision for Mexico's largest health and social protection institution. O'Donnell's pioneering leadership set the course for integrating medical research, clinical practice, and resource management, aiming to deliver comprehensive stability and security to a vast demographic. This executive's initial strategic direction was instrumental in building an organization that now connects with over half of the Mexican population, positioning The IMSS as a preeminent force in Latin America. The Founder & Chief Executive Officer's role continues to influence the institution's core mission of providing accessible healthcare and social protection, ensuring that the principles of service and security remain central to its operations. Patricia O'Donnell's enduring legacy is reflected in the organization's capacity to adapt and thrive, addressing the evolving needs of workers, pensioners, employers, and the general public. The strategic imperatives set forth by O'Donnell guide the ongoing efforts to enhance national well-being.

    Anan Al-Arda - Founder & Chief Executive Officer

    Anan Al-Arda, the Founder & Chief Executive Officer at The IMSS, initiated the strategic framework for Mexico's largest health and social protection institution. Al-Arda's foundational leadership established the critical synergy between medical research, clinical practice, and resource management, designed to offer robust stability and security to a broad spectrum of individuals. This executive's early vision was pivotal in cultivating an organization that now serves more than half of the Mexican populace, cementing The IMSS's standing as a leader across Latin America. The Founder & Chief Executive Officer's ongoing influence ensures the institution remains committed to its core mandate of delivering essential healthcare and social protection services. Anan Al-Arda's strategic foresight continues to shape The IMSS's operational direction, emphasizing accessibility and comprehensive support for workers, pensioners, employers, and the public. The foundational principles championed by Al-Arda guide the institution's sustained impact on national welfare.

    Patricia Sandoz - Founder & Chief Executive Officer

    Patricia Sandoz, the Founder & Chief Executive Officer at The IMSS, architected the initial strategic direction for Mexico's foremost health and social protection institution. Sandoz's foundational leadership established the critical integration of medical research, clinical practice, and resource management, with the objective of providing unparalleled stability and security to a wide-ranging demographic. This executive's early strategic contributions were essential in developing an organization that now engages with over half of the Mexican population, reinforcing The IMSS's position as a dominant force in Latin America. The Founder & Chief Executive Officer's role continues to champion the institution's fundamental mission of delivering accessible healthcare and social protection. Patricia Sandoz's strategic vision guides The IMSS's ongoing efforts to meet the diverse needs of workers, pensioners, employers, and the general public, ensuring operational excellence and sustained national impact. The foundational tenets established by Sandoz remain central to the institution's enduring success.

    Zeeshan Gulzar - Chief Technology Officer

    Zeeshan Gulzar, the Chief Technology Officer at The IMSS, spearheads the technological infrastructure and digital transformation initiatives for Mexico's largest health and social protection institution. Gulzar directs the implementation of advanced IT solutions that enhance the efficiency of medical research, clinical practice, and resource management, directly supporting the organization's mission to provide stability and security. This executive's oversight is critical in leveraging technology to serve over half of the Mexican population, ensuring seamless data flow and secure access to services across the nation. The Chief Technology Officer's role involves driving innovation in digital health platforms and data analytics, crucial for maintaining The IMSS's leadership in Latin America. Zeeshan Gulzar's strategic technology roadmap focuses on optimizing operational processes and expanding digital outreach, thereby strengthening the institution's capacity to support workers, pensioners, employers, and the general public. Gulzar's leadership ensures technological advancements align with the core objectives of national healthcare and social security provision.

    Evelyn Sanchez Ramos - Chief Medical Officer

    Evelyn Sanchez Ramos, the Chief Medical Officer at The IMSS, leads the clinical strategy and medical operations for Mexico's largest health and social protection institution. Ramos directs the integration of cutting-edge medical research and best practices into patient care, ensuring the highest standards of health services and social protection. This executive's guidance is vital for optimizing the delivery of care to over half of the Mexican population, reinforcing The IMSS's commitment to stability and security for workers, pensioners, and their families. The Chief Medical Officer's role involves overseeing the quality and efficacy of medical treatments and public health programs, contributing significantly to the institution's standing in Latin America. Evelyn Sanchez Ramos's strategic focus is on advancing clinical excellence, promoting preventative healthcare, and ensuring equitable access to medical resources nationwide. Ramos's leadership ensures that medical advancements directly translate into improved health outcomes for all served by the institution.

    Ismael Berny - Jefe De Personal

    Ismael Berny, the Jefe De Personal at The IMSS, manages human resources and personnel administration for Mexico's largest health and social protection institution. Berny oversees the recruitment, training, and welfare of the extensive workforce, ensuring operational continuity and high performance across all departments. This executive's role is critical in supporting the institution's mission to provide stability and security to workers, pensioners, employers, health professionals, and the general public by maintaining a skilled and motivated staff. The Jefe De Personal's responsibilities include developing and implementing HR policies that align with The IMSS's strategic objectives and its commitment to serving over half of the Mexican population. Ismael Berny's leadership focuses on fostering a positive work environment and ensuring compliance with labor regulations, thereby contributing to the institution's effective functioning and its prominent position in Latin America. Berny's efforts are central to the operational success of national healthcare and social security initiatives.

    Yesica Azucena Castillo Velez - Jefe De Grupo De Personal

    Yesica Azucena Castillo Velez, the Jefe De Grupo De Personal at The IMSS, leads specific personnel groups within Mexico's largest health and social protection institution. Castillo Velez directs the management of assigned teams, focusing on their professional development and operational effectiveness to support the institution's broad service delivery. This executive's role is integral to ensuring that departmental staff are equipped to uphold The IMSS's commitment to providing stability and security to its diverse clientele, including insured workers and pensioners. The Jefe De Grupo De Personal's responsibilities involve coordinating team activities, managing performance, and ensuring adherence to institutional policies, thereby contributing to the seamless operation of services for over half of the Mexican population. Yesica Azucena Castillo Velez's leadership emphasizes team cohesion and efficiency, supporting the institution's mission and its significant presence in Latin America. Castillo Velez's focus on personnel management directly impacts the quality of care and social protection provided.

    Omar Mondragon - Jefe De Personal

    Omar Mondragon, the Jefe De Personal at The IMSS, oversees key aspects of human capital management for Mexico's largest health and social protection institution. Mondragon directs the implementation of personnel policies and programs designed to enhance employee engagement and productivity, supporting the institution's extensive operational needs. This executive's function is vital in ensuring that the workforce is adequately supported and aligned with The IMSS's mission to provide stability and security to workers, pensioners, and the broader public. The Jefe De Personal's responsibilities encompass managing employee relations, facilitating training initiatives, and ensuring compliance with HR best practices, all of which are crucial for serving over half of the Mexican population effectively. Omar Mondragon's leadership aims to cultivate a robust and responsive human resources framework, contributing to The IMSS's sustained impact and its leadership role in Latin America. Mondragon's strategic approach to personnel management underpins the institution's capacity for delivering comprehensive social protection.

    Rosario Granados - Jefe De Personal

    Rosario Granados, the Jefe De Personal at The IMSS, manages critical personnel functions within Mexico's largest health and social protection institution. Granados directs the administration of employee benefits and labor relations, ensuring a supportive and compliant environment for the institution's vast workforce. This executive's role is essential in maintaining the operational integrity required to deliver stability and security to insured workers, pensioners, employers, and the general public. The Jefe De Personal's oversight contributes directly to the effective functioning of departments responsible for medical research, clinical practice, and resource management, supporting The IMSS's mandate to serve over half of the Mexican population. Rosario Granados's focus on personnel welfare and regulatory adherence strengthens the institution's capacity to achieve its strategic goals and maintain its prominent position in Latin America. Granados's dedication to human resource excellence supports the overall mission of national healthcare and social protection.

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    Frequently Asked Questions Regarding The IMSS Top Executives and Leadership Team

    Who leads The IMSS?
    The IMSS is led by Gonzalo Vidal (Chief Executive Officer), along with executives such as Patricia O'Donnell (Founder & Chief Executive Officer) and Anan Al-Arda (Founder & Chief Executive Officer).
    Who is part of The IMSS’s executive team?
    The executive team of The IMSS includes leaders such as Gonzalo Vidal (Chief Executive Officer), Patricia O'Donnell (Founder & Chief Executive Officer), Anan Al-Arda (Founder & Chief Executive Officer) and other senior executives.
    How many executives does The IMSS have?
    The IMSS has 10 executives leading key business areas.
    What roles are included in The IMSS’s leadership team?
    The leadership team of The IMSS includes roles such as Chief Executive Officer, Founder & Chief Executive Officer, Founder & Chief Executive Officer, Founder & Chief Executive Officer, Chief Technology Officer.