Datavant Executive and Leadership Team

July, 2026

Leadership Overview

Datavant has 9 executives leading key functions including strategy, operations, information technology, human resources, legal, and business unit leadership.

Driven by a commitment to advancing medical research, Datavant links and shares healthcare data across multiple platforms to improve patient care and facilitate data safety operations.

Leadership Roles at Datavant

  • Chief Executive Officer - Kyle Armbrester
  • Chief Operating Officer - Geoffrey Koontz
  • Chief Operating Officer, Provider Services - Stephen Mallinak
  • General Manager and President, Life Sciences - Arnaub Chatterjee
  • General Manager & President, Payer - Sachin Patel
  • Chief of Staff - Christina Iacopelli
  • Interim Chief Information Officer - Gu Pan
  • Chief People Officer - Susan Yun
  • Chief Legal Officer & Corporate Secretary - Kathryn Stalmack
  • Kyle Armbrester - Chief Executive Officer

    Kyle Armbrester, the Chief Executive Officer at Datavant, directs the company's overall strategic vision and operational execution. Armbrester guides the organization's mission to link and share healthcare data across diverse platforms, enhancing medical research and patient care outcomes. Overseeing all facets of the business, the Chief Executive Officer ensures alignment with Datavant's core objectives of data safety and seamless sharing operations. This leadership involves fostering innovation within the computer software sector, specifically targeting healthcare data solutions. By driving strategic initiatives, Kyle Armbrester ensures the company maintains its position as a leader in healthcare data interoperability, impacting the broader landscape of medical advancement and patient well-being across the United States and beyond. The Chief Executive Officer's purview extends to all departments, ensuring cohesive progress towards the company's ambitious goals.
    Kyle Armbrester

    Geoffrey Koontz - Chief Operating Officer

    Geoffrey Koontz, the Chief Operating Officer at Datavant, oversees the company's day-to-day operational functions and drives efficiency in data linking and sharing processes. Koontz manages the infrastructure and systems that enable Datavant to securely connect healthcare data across multiple platforms, directly supporting advancements in medical research and patient care. This leadership role is crucial for ensuring the reliability and scalability of Datavant's software solutions, particularly concerning data safety and sharing operations. By optimizing operational workflows, Geoffrey Koontz ensures that the company can effectively meet the demands of its clients and partners within the healthcare ecosystem. The Chief Operating Officer's focus on operational excellence underpins the company's ability to deliver on its mission and maintain a competitive edge in the rapidly evolving health tech landscape.

    Stephen Mallinak - Chief Operating Officer, Provider Services

    Stephen Mallinak, the Chief Operating Officer, Provider Services at Datavant, directs the operational strategies specifically for Datavant's provider-facing services. Mallinak ensures that the systems and processes supporting healthcare providers are robust, secure, and efficient, facilitating seamless data sharing to enhance medical research and patient care. This specialized operational leadership focuses on the unique needs of healthcare providers, optimizing how they interact with Datavant's platform for data linkage and analysis. The Chief Operating Officer, Provider Services plays a key role in expanding Datavant's reach within the provider network, driving adoption of data sharing solutions that improve clinical outcomes and research capabilities. Stephen Mallinak's expertise is critical for strengthening provider relationships and ensuring the effective implementation of data safety protocols within this segment.

    Arnaub Chatterjee - General Manager and President, Life Sciences

    Arnaub Chatterjee, the General Manager and President, Life Sciences at Datavant, leads the company's strategic direction and business development within the life sciences sector. Chatterjee drives initiatives that leverage Datavant's platform to enhance medical research and patient care by facilitating secure data sharing among pharmaceutical companies, researchers, and other stakeholders. This leadership role is pivotal in expanding Datavant's impact across the life sciences value chain, ensuring robust data safety and interoperability. The General Manager and President, Life Sciences focuses on building key partnerships and delivering innovative solutions that accelerate drug discovery and development. Arnaub Chatterjee's expertise is instrumental in positioning Datavant as a critical enabler of scientific advancement and improved health outcomes globally.
    Arnaub Chatterjee

    Sachin Patel - General Manager & President, Payer

    Sachin Patel, the General Manager & President, Payer at Datavant, spearheads the company's engagement and strategy within the payer segment of the healthcare industry. Patel directs efforts to utilize Datavant's data linkage capabilities to improve patient care and support value-based initiatives for health insurance providers. This leadership position is crucial for driving the adoption of secure data sharing solutions that enhance operational efficiency and clinical insights for payers across the United States. The General Manager & President, Payer focuses on developing strategic partnerships and delivering tailored solutions that address the unique challenges faced by payers in managing healthcare costs and improving member outcomes. Sachin Patel's leadership ensures Datavant effectively serves the payer market, contributing to a more connected and data-driven healthcare ecosystem.
    Sachin Patel

    Christina Iacopelli - Chief of Staff

    Christina Iacopelli, the Chief of Staff at Datavant, provides critical operational and strategic support to the executive leadership team. Iacopelli manages key initiatives, streamlines internal processes, and facilitates communication across departments to ensure efficient execution of the company's mission. This role involves coordinating complex projects that advance Datavant's ability to link and share healthcare data, thereby improving medical research and patient care. The Chief of Staff acts as a central point for strategic planning and implementation, ensuring that operational efforts directly support the company's goals for data safety and sharing. By optimizing workflows and driving cross-functional collaboration, Christina Iacopelli enhances the overall effectiveness of the leadership team and contributes to the company's growth within the software and healthcare technology sectors. The Chief of Staff's responsibilities are vital for maintaining organizational agility and focus.

    Gu Pan - Interim Chief Information Officer

    Gu Pan, the Interim Chief Information Officer at Datavant, leads the company's information technology strategy and infrastructure. Pan is responsible for ensuring the security, integrity, and accessibility of Datavant's data systems, which are fundamental to linking and sharing healthcare information across platforms. This role is critical for supporting the company's mission to improve medical research and patient care through advanced data solutions. The Interim Chief Information Officer oversees the technological backbone that enables robust data safety and sharing operations, ensuring compliance with industry regulations and best practices. Gu Pan's leadership in IT infrastructure development and management is essential for Datavant's continued innovation and operational reliability in the competitive software and healthcare technology markets.

    Susan Yun - Chief People Officer

    Susan Yun, the Chief People Officer at Datavant, directs all human resources functions and talent management strategies. Yun is responsible for cultivating a strong organizational culture that supports Datavant's mission of advancing healthcare data linkage and sharing for improved medical research and patient care. This leadership role involves attracting, developing, and retaining top talent essential for innovation in the computer software and healthcare technology sectors. The Chief People Officer ensures that employee programs and policies align with the company's commitment to data safety and ethical sharing practices. Susan Yun's strategic approach to people operations is vital for fostering an environment where employees can thrive and contribute effectively to Datavant's growth and success across its operations.
    Susan Yun
    Kathryn Stalmack, the Chief Legal Officer & Corporate Secretary at Datavant, oversees all legal affairs and corporate governance. Stalmack ensures that Datavant's operations, particularly its data linking and sharing initiatives, comply with all relevant laws and regulations, safeguarding patient privacy and data integrity. This critical role supports the company's mission to improve medical research and patient care by providing expert legal counsel and strategic guidance. The Chief Legal Officer & Corporate Secretary manages risk, advises on compliance matters related to data safety, and supports the board of directors in their oversight responsibilities. Kathryn Stalmack's expertise is fundamental to maintaining Datavant's reputation and operational integrity within the highly regulated healthcare and technology industries.

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    Frequently Asked Questions Regarding Datavant Top Executives and Leadership Team

    Who leads Datavant?
    Datavant is led by Kyle Armbrester (Chief Executive Officer), along with executives such as Geoffrey Koontz (Chief Operating Officer) and Stephen Mallinak (Chief Operating Officer, Provider Services).
    Who is part of Datavant’s executive team?
    The executive team of Datavant includes leaders such as Kyle Armbrester (Chief Executive Officer), Geoffrey Koontz (Chief Operating Officer), Stephen Mallinak (Chief Operating Officer, Provider Services) and other senior executives.
    How many executives does Datavant have?
    Datavant has 9 executives leading key business areas.
    What roles are included in Datavant’s leadership team?
    The leadership team of Datavant includes roles such as Chief Executive Officer, Chief Operating Officer, Chief Operating Officer, Provider Services, General Manager and President, Life Sciences, General Manager & President, Payer.