CentroMed Executive and Leadership Team

August, 2026

Leadership Overview

CentroMed has 10 executives leading key functions including strategy, financial oversight, operational management, technology infrastructure, and clinical excellence.

Committed to providing culturally-competent healthcare, CentroMed delivers essential medical and mental health services to underserved communities while maintaining a legacy of community-focused nonprofit excellence.

Leadership Roles at CentroMed

  • President & Chief Executive Officer - Ernesto Gomez
  • Senior Vice President & Chief Financial Officer - Lawrence Walzel
  • Vice President & Chief Financial Officer - Chuck Walzel
  • Texas Vice President & Chief Operating Officer (SAN Antonio) - Don Macaulay
  • Vice President. Chief Technology Officer - David Amason
  • Assistant Vice President & Assistant Chief Information Officer - Adam Alotaibi
  • Senior Vice President and Chief Medical Officer - Norma Parra
  • Associate Chief Medical Officer - Yuly Carreras
  • Associate Chief Medical Officer - Clevert Tseng
  • Associate Chief Medical Officer - Aysun Alagoz
  • Ernesto Gomez - President & Chief Executive Officer

    Ernesto Gomez, the President & Chief Executive Officer at CentroMed, directs the overarching strategic vision and organizational mission. Gomez manages the alignment of clinical service delivery with the nonprofit mandate to provide accessible healthcare across diverse regional populations. By engaging with the board and community stakeholders, the President & Chief Executive Officer ensures the long-term sustainability of the organization. This leadership role involves navigating complex regulatory environments while expanding the reach of essential medical programs. Ernesto Gomez drives the growth of the health network by prioritizing patient-centered care models that address specific community needs. Through rigorous oversight of administrative and clinical departments, the President & Chief Executive Officer maintains the operational integrity of the entire system. Ultimately, Gomez secures the resources necessary to uphold the commitment to high-quality, culturally-competent care for all patients within the service area.

    Lawrence Walzel - Senior Vice President & Chief Financial Officer

    Lawrence Walzel, the Senior Vice President & Chief Financial Officer at CentroMed, manages the fiscal health and long-term financial planning of the organization. Walzel oversees the allocation of capital to support the expansion of medical facilities and the enhancement of patient services. By monitoring revenue cycles and optimizing operational budgets, the Senior Vice President & Chief Financial Officer ensures the financial stability required for nonprofit sustainability. This role involves coordinating with executive leadership to align fiscal strategies with the broader mission of providing accessible healthcare. Lawrence Walzel directs the financial reporting processes and maintains compliance with all regulatory standards. Through careful analysis of market trends and internal performance metrics, the Senior Vice President & Chief Financial Officer mitigates financial risks. Ultimately, Walzel strengthens the economic foundation of the organization, allowing for the continued delivery of vital health services to the community.

    Chuck Walzel - Vice President & Chief Financial Officer

    Chuck Walzel, the Vice President & Chief Financial Officer at CentroMed, manages the internal accounting controls and financial auditing processes. Walzel oversees the preparation of financial statements and ensures the accuracy of all fiscal reporting. By analyzing cost structures and identifying opportunities for operational savings, the Vice President & Chief Financial Officer supports the efficient use of organizational funds. This role involves collaborating with the broader finance team to maintain transparency and accountability in all monetary transactions. Chuck Walzel directs the development of financial policies that protect the assets of the nonprofit. Through the implementation of robust financial systems, the Vice President & Chief Financial Officer provides the data necessary for informed decision-making at the executive level. Ultimately, Walzel ensures the fiscal health of the organization, enabling the continued provision of essential medical services to the community.

    Don Macaulay - Texas Vice President & Chief Operating Officer (SAN Antonio)

    Don Macaulay, the Texas Vice President & Chief Operating Officer (SAN Antonio) at CentroMed, directs the daily operational activities across the regional network. Macaulay oversees the efficiency of clinical workflows and the management of facility resources to ensure seamless patient care delivery. By coordinating with department heads, the Texas Vice President & Chief Operating Officer (SAN Antonio) maintains high standards of service quality and operational excellence. This leadership role involves implementing process improvements that enhance the patient experience and streamline administrative functions. Don Macaulay drives the execution of operational strategies that support the organization's mission within the local market. Through the management of staff and infrastructure, the Texas Vice President & Chief Operating Officer (SAN Antonio) ensures that all clinics operate at peak performance. Ultimately, Macaulay optimizes the delivery of healthcare services to meet the evolving needs of the community.

    David Amason - Vice President. Chief Technology Officer

    David Amason, the Vice President. Chief Technology Officer at CentroMed, directs the digital transformation and information technology strategy. Amason oversees the implementation of secure electronic health record systems and the maintenance of critical network infrastructure. By integrating advanced technology solutions, the Vice President. Chief Technology Officer enhances the efficiency of clinical data management and patient communication. This role involves protecting sensitive health information through rigorous cybersecurity protocols and compliance measures. David Amason drives the adoption of innovative tools that support the delivery of high-quality care across all facilities. Through the management of the IT department, the Vice President. Chief Technology Officer ensures that all digital systems remain reliable and scalable. Ultimately, Amason provides the technological foundation necessary for the organization to deliver modern, efficient, and secure healthcare services to the diverse populations served.

    Adam Alotaibi - Assistant Vice President & Assistant Chief Information Officer

    Adam Alotaibi, the Assistant Vice President & Assistant Chief Information Officer at CentroMed, manages the day-to-day operations of the information technology department. Alotaibi oversees the technical support teams and ensures the continuous availability of critical software applications. By monitoring system performance and addressing technical challenges, the Assistant Vice President & Assistant Chief Information Officer maintains the stability of the digital environment. This role involves assisting in the deployment of new technology initiatives and supporting the integration of clinical systems. Adam Alotaibi directs the maintenance of hardware and software assets to ensure optimal functionality. Through the coordination of IT resources, the Assistant Vice President & Assistant Chief Information Officer facilitates seamless communication between clinical and administrative staff. Ultimately, Alotaibi supports the technological infrastructure that enables the organization to provide consistent and reliable healthcare services to the community.

    Norma Parra - Senior Vice President and Chief Medical Officer

    Norma Parra, the Senior Vice President and Chief Medical Officer at CentroMed, directs the clinical strategy and medical standards of care. Parra oversees the performance of the medical staff and ensures that all clinical practices align with evidence-based guidelines. By fostering a culture of quality improvement, the Senior Vice President and Chief Medical Officer enhances patient outcomes and safety across the network. This leadership role involves collaborating with other executives to integrate medical services with the broader organizational mission. Norma Parra drives the development of clinical programs that address the specific health needs of the community. Through the oversight of medical policies and practitioner training, the Senior Vice President and Chief Medical Officer maintains the highest standards of professional excellence. Ultimately, Parra ensures that the organization provides compassionate, culturally-competent, and effective medical care to every patient.

    Yuly Carreras - Associate Chief Medical Officer

    Yuly Carreras, the Associate Chief Medical Officer at CentroMed, manages the clinical operations for primary care and preventative health services. Carreras oversees the implementation of patient care protocols and monitors the quality of services provided by the medical team. By focusing on the delivery of primary care, the Associate Chief Medical Officer ensures that patients receive timely and appropriate medical attention. This role involves mentoring clinical staff and promoting best practices in patient management. Yuly Carreras directs the coordination of care between different departments to improve the overall patient experience. Through the analysis of clinical data, the Associate Chief Medical Officer identifies areas for service enhancement and efficiency. Ultimately, Carreras supports the clinical leadership in maintaining high standards of care and ensuring that the organization meets the health needs of the diverse populations served.

    Clevert Tseng - Associate Chief Medical Officer

    Clevert Tseng, the Associate Chief Medical Officer at CentroMed, manages the clinical initiatives related to chronic disease management and specialty care integration. Tseng oversees the development of care pathways that improve health outcomes for patients with complex medical conditions. By coordinating with multidisciplinary teams, the Associate Chief Medical Officer ensures that patients receive comprehensive and integrated treatment plans. This role involves evaluating clinical performance metrics and implementing strategies to enhance the effectiveness of medical interventions. Clevert Tseng directs the adoption of new clinical technologies that support better patient monitoring and management. Through the oversight of specialty services, the Associate Chief Medical Officer contributes to the expansion of the organization's medical capabilities. Ultimately, Tseng strengthens the clinical framework, ensuring that the organization provides high-quality, specialized care to the community.

    Aysun Alagoz - Associate Chief Medical Officer

    Aysun Alagoz, the Associate Chief Medical Officer at CentroMed, manages the clinical programs focused on pediatric and adolescent health services. Alagoz oversees the delivery of care to younger populations, ensuring that all medical services are age-appropriate and culturally sensitive. By developing outreach initiatives and school-based health programs, the Associate Chief Medical Officer expands the reach of the organization's pediatric services. This role involves collaborating with community partners to address the unique health challenges faced by children and adolescents. Aysun Alagoz directs the clinical staff in providing comprehensive wellness and preventative care. Through the monitoring of pediatric health outcomes, the Associate Chief Medical Officer drives improvements in the quality of care provided to the youth. Ultimately, Alagoz ensures that the organization remains a leader in pediatric healthcare, supporting the long-term well-being of the community's younger members.

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    Frequently Asked Questions Regarding CentroMed Top Executives and Leadership Team

    Who leads CentroMed?
    CentroMed is led by Ernesto Gomez (President & Chief Executive Officer), along with executives such as Lawrence Walzel (Senior Vice President & Chief Financial Officer) and Chuck Walzel (Vice President & Chief Financial Officer).
    Who is part of CentroMed’s executive team?
    The executive team of CentroMed includes leaders such as Ernesto Gomez (President & Chief Executive Officer), Lawrence Walzel (Senior Vice President & Chief Financial Officer), Chuck Walzel (Vice President & Chief Financial Officer) and other senior executives.
    How many executives does CentroMed have?
    CentroMed has 10 executives leading key business areas.
    What roles are included in CentroMed’s leadership team?
    The leadership team of CentroMed includes roles such as President & Chief Executive Officer, Senior Vice President & Chief Financial Officer, Vice President & Chief Financial Officer, Texas Vice President & Chief Operating Officer (SAN Antonio), Vice President. Chief Technology Officer.