Kelsey-Seybold Clinic Executive and Leadership Team

October, 2026

Leadership Overview

Kelsey-Seybold Clinic has 5 executives leading key functions including operations, information systems, technology security, medical standards, and cardiology services.

Committed to delivering high-quality multi-specialty care, Kelsey-Seybold Clinic maintains a robust network of hospitals and clinics across Texas to ensure patient wellness and clinical excellence.

Leadership Roles at Kelsey-Seybold Clinic

  • Chief Operating Officer - Kenneth Janis
  • Vice President, Information Systems & Chief Information Officer - Gregory Hyzak
  • Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer - Martin Littmann
  • Chief Medical Officer - Donnie Aga
  • Chief of Cardiology - Ali Mortazavi
  • Kenneth Janis - Chief Operating Officer

    Kenneth Janis, the Chief Operating Officer at Kelsey-Seybold Clinic, directs the daily administrative functions across the entire multi-specialty network. Overseeing the integration of hospital services and clinic workflows, the Chief Operating Officer ensures operational efficiency remains at the forefront of patient care delivery. Janis manages the complex logistics required to support diverse medical departments, including gynecology, orthopedics, and urology. By streamlining resource allocation and optimizing facility utilization, the Chief Operating Officer drives the organizational capacity to handle high patient volumes throughout the Texas region. Kenneth Janis maintains close collaboration with clinical leadership to align administrative goals with medical outcomes. This focus on operational excellence supports the broader mission of providing accessible, high-quality healthcare. Through rigorous process improvement and strategic oversight, Janis secures the long-term stability of the clinic system while fostering an environment conducive to superior medical service delivery.

    Gregory Hyzak - Vice President, Information Systems & Chief Information Officer

    Gregory Hyzak, the Vice President, Information Systems & Chief Information Officer at Kelsey-Seybold Clinic, architects the digital infrastructure supporting all clinical and administrative data. Managing the enterprise-wide information systems, the Vice President, Information Systems & Chief Information Officer ensures seamless connectivity between hospitals and specialized clinics. Hyzak drives the implementation of advanced health information technology to improve patient record accuracy and accessibility. By overseeing the digital transformation of medical workflows, the Vice President, Information Systems & Chief Information Officer enables clinicians to access critical data instantly, thereby enhancing diagnostic precision. Gregory Hyzak coordinates with executive leadership to align technological investments with the evolving needs of the multi-specialty network. This leadership role involves maintaining robust data integrity and system reliability across the entire Texas footprint. Through continuous innovation in information management, Hyzak supports the delivery of efficient, data-driven healthcare services to the community.

    Martin Littmann - Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer

    Martin Littmann, the Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer at Kelsey-Seybold Clinic, secures the digital perimeter and advances the technological capabilities of the organization. Protecting sensitive patient data, the Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer enforces rigorous cybersecurity protocols across all hospital and clinic networks. Littmann drives the adoption of cutting-edge security technologies to mitigate risks and ensure compliance with healthcare privacy standards. By overseeing the technical architecture, the Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer maintains the integrity of the clinic's digital assets. Martin Littmann collaborates with the executive team to integrate secure, scalable solutions that support the clinic's multi-specialty services. This leadership role focuses on fortifying the infrastructure against emerging threats while enabling technological growth. Through proactive security management, Littmann ensures the safety and reliability of the entire digital ecosystem.

    Donnie Aga - Chief Medical Officer

    Donnie Aga, the Chief Medical Officer at Kelsey-Seybold Clinic, establishes the clinical standards and quality benchmarks for the entire multi-specialty network. Overseeing the medical staff across hospitals, gynecology, ophthalmology, and spine centers, the Chief Medical Officer ensures consistent delivery of evidence-based care. Aga drives initiatives to improve patient outcomes and clinical performance metrics throughout the Texas region. By coordinating with department heads, the Chief Medical Officer aligns medical practices with the latest advancements in healthcare. Donnie Aga monitors clinical quality and safety protocols to maintain the highest standards of patient care. This leadership role involves fostering a culture of excellence among physicians and clinical teams. Through strategic oversight of medical operations, Aga supports the clinic's mission to provide comprehensive, patient-centered services. By prioritizing clinical efficacy and safety, the Chief Medical Officer ensures the organization remains a leader in the regional healthcare landscape.

    Ali Mortazavi - Chief of Cardiology

    Ali Mortazavi, the Chief of Cardiology at Kelsey-Seybold Clinic, directs the specialized cardiac care services provided across the clinic's network. Overseeing the diagnostic and treatment protocols for heart-related conditions, the Chief of Cardiology ensures that patients receive advanced cardiovascular care. Mortazavi drives the integration of modern cardiology practices into the broader multi-specialty framework, enhancing the clinic's ability to manage complex heart health issues. By leading the cardiology team, the Chief of Cardiology maintains high standards of clinical excellence and patient safety. Ali Mortazavi collaborates with other medical leaders to ensure seamless transitions for patients requiring multidisciplinary care. This leadership role focuses on expanding cardiac service capabilities and improving long-term health outcomes for the patient population. Through clinical expertise and strategic management of the cardiology department, Mortazavi supports the organization's commitment to comprehensive medical care. By prioritizing innovation in heart health, the Chief of Cardiology strengthens the clinic's reputation for superior specialty services.

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    Frequently Asked Questions Regarding Kelsey-Seybold Clinic Top Executives and Leadership Team

    Who leads Kelsey-Seybold Clinic?
    Kelsey-Seybold Clinic is led by Kenneth Janis (Chief Operating Officer), along with executives such as Gregory Hyzak (Vice President, Information Systems & Chief Information Officer) and Martin Littmann (Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer).
    Who is part of Kelsey-Seybold Clinic’s executive team?
    The executive team of Kelsey-Seybold Clinic includes leaders such as Kenneth Janis (Chief Operating Officer), Gregory Hyzak (Vice President, Information Systems & Chief Information Officer), Martin Littmann (Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer) and other senior executives.
    How many executives does Kelsey-Seybold Clinic have?
    Kelsey-Seybold Clinic has 5 executives leading key business areas.
    What roles are included in Kelsey-Seybold Clinic’s leadership team?
    The leadership team of Kelsey-Seybold Clinic includes roles such as Chief Operating Officer, Vice President, Information Systems & Chief Information Officer, Technology Chief & Information Security Officer & Chief Technology Officer & Chief Information Security Officer, Chief Medical Officer, Chief of Cardiology.