OneOncology Executive and Leadership Team

August, 2026

Leadership Overview

OneOncology has 7 executives leading key functions including financial strategy, technology infrastructure, operational scaling, human capital, legal compliance, clinical excellence, and business development.

Driven by a commitment to community-based cancer care, OneOncology empowers independent oncology practices through a physician-led, data-driven, and technology-powered business model that prioritizes patient outcomes.

Leadership Roles at OneOncology

  • Chief Financial Officer - Jon Billington
  • Chief Operating Officer - Heather Chapa
  • President - ABCS - Jonathan Schwartz
  • Chief Technology Officer - Andy Corts
  • Chief Human Resources Officer - Karen Kizzia
  • Chief Legal Officer - Vinay Bhupathy
  • Chief Medical Officer - Davey Daniel
  • Jon Billington - Chief Financial Officer

    Jon Billington, the Chief Financial Officer at OneOncology, directs all fiscal planning and capital allocation strategies for the national network. Managing the financial health of the organization, the Chief Financial Officer oversees revenue cycle management and long-term investment initiatives to support independent oncology practices. This leadership role involves rigorous analysis of market trends to ensure sustainable growth across the entire enterprise. By optimizing financial workflows, Jon Billington directly impacts the ability of community practices to invest in advanced cancer care technologies. Billington maintains strict oversight of budgetary compliance while collaborating with the executive team to refine the overarching business model. Through precise financial modeling and resource management, the Chief Financial Officer secures the necessary capital to expand the reach of the network, ultimately strengthening the competitive position of the organization within the national healthcare landscape.
    Jon Billington

    Heather Chapa - Chief Operating Officer

    Heather Chapa, the Chief Operating Officer at OneOncology, executes the daily operational strategies that sustain the national network of independent oncology practices. Managing the integration of new clinical partners, the Chief Operating Officer ensures that all practices adhere to the high standards of the patient-centric business model. This leadership role involves streamlining administrative processes and optimizing supply chain logistics to improve practice performance. By coordinating cross-functional teams, Heather Chapa directly impacts the operational scalability of the organization. Chapa works closely with regional leaders to ensure consistent service delivery and operational excellence across the entire footprint. Through the implementation of standardized operational protocols, the Chief Operating Officer drives efficiency and supports the growth of the partnership. This focus on operational rigor allows the organization to maintain its commitment to high-quality cancer care while expanding the reach of the network into new markets.

    Jonathan Schwartz - President - ABCS

    Jonathan Schwartz, the President - ABCS at OneOncology, leads the strategic development and business growth initiatives for the ABCS division. Overseeing the expansion of service offerings, the President - ABCS ensures that the division aligns with the broader mission of supporting independent oncology practices. This leadership role involves identifying new market opportunities and fostering relationships with key stakeholders to drive revenue growth. By managing the operational performance of the division, Jonathan Schwartz directly impacts the overall success of the organization. Schwartz collaborates with other C-suite leaders to integrate the services of the division into the existing network, creating a cohesive and comprehensive support system for community oncologists. Through the execution of targeted business strategies, the President - ABCS drives the competitive advantage of the company, ensuring that the organization continues to provide essential value to its partners and patients nationwide.

    Andy Corts - Chief Technology Officer

    Andy Corts, the Chief Technology Officer at OneOncology, architects the digital infrastructure and data-driven platforms that power the national partnership. Overseeing the integration of clinical software and analytics tools, the Chief Technology Officer ensures that independent practices possess the technical capabilities required for high-quality patient care. This leadership role involves managing cybersecurity protocols and cloud-based systems to protect sensitive health information across the network. By implementing scalable technology solutions, Andy Corts directly impacts the efficiency of clinical workflows and the accuracy of data reporting. Corts collaborates with medical leadership to align digital tools with the specific needs of community oncology providers. Through continuous innovation in health information technology, the Chief Technology Officer drives the digital transformation of the organization, ensuring that the platform remains at the forefront of the industry while supporting seamless operations across diverse geographic regions.

    Karen Kizzia - Chief Human Resources Officer

    Karen Kizzia, the Chief Human Resources Officer at OneOncology, directs the talent acquisition and organizational development strategies for the entire enterprise. Overseeing the recruitment of top-tier clinical and administrative staff, the Chief Human Resources Officer ensures that the company maintains a workforce capable of supporting the complex needs of community oncology practices. This leadership role involves designing comprehensive training programs and fostering a culture of professional excellence. By managing employee engagement and performance management systems, Karen Kizzia directly impacts the retention of high-performing talent across the national network. Kizzia collaborates with the executive team to align human capital strategies with the long-term goals of the organization. Through the development of robust HR policies, the Chief Human Resources Officer drives organizational stability and supports the growth of the partnership, ensuring that the company remains an employer of choice within the competitive healthcare sector.
    Vinay Bhupathy, the Chief Legal Officer at OneOncology, manages all legal affairs, regulatory compliance, and corporate governance for the national partnership. Overseeing the complex legal landscape of healthcare operations, the Chief Legal Officer ensures that the organization adheres to all federal and state regulations governing oncology practices. This leadership role involves negotiating strategic partnerships and protecting the intellectual property of the company. By providing legal counsel on mergers and acquisitions, Vinay Bhupathy directly impacts the expansion and structural integrity of the network. Bhupathy works with the Board and executive leadership to mitigate risk and ensure ethical business practices across all operations. Through the diligent oversight of legal frameworks, the Chief Legal Officer drives the long-term security of the organization, enabling the company to navigate the evolving healthcare environment while maintaining its focus on providing high-quality, patient-centric cancer care.
    Vinay Bhupathy

    Davey Daniel - Chief Medical Officer

    Davey Daniel, the Chief Medical Officer at OneOncology, directs the clinical strategy and quality improvement initiatives for the national network of independent practices. Overseeing the implementation of evidence-based treatment protocols, the Chief Medical Officer ensures that all partner practices deliver the highest standard of patient-centric care. This leadership role involves collaborating with oncologists to integrate clinical research and advanced therapies into daily practice. By monitoring clinical outcomes and patient satisfaction metrics, Davey Daniel directly impacts the quality of care provided across the entire organization. Daniel works with the technology and operations teams to ensure that clinical workflows support the best possible patient results. Through the promotion of clinical excellence and continuous learning, the Chief Medical Officer drives the medical mission of the company, ensuring that the partnership remains a leader in community-based oncology care while expanding its influence across the national healthcare landscape.
    Davey Daniel

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    Frequently Asked Questions Regarding OneOncology Top Executives and Leadership Team

    Who leads OneOncology?
    OneOncology is led by Jon Billington (Chief Financial Officer), along with executives such as Heather Chapa (Chief Operating Officer) and Jonathan Schwartz (President - ABCS).
    Who is part of OneOncology’s executive team?
    The executive team of OneOncology includes leaders such as Jon Billington (Chief Financial Officer), Heather Chapa (Chief Operating Officer), Jonathan Schwartz (President - ABCS) and other senior executives.
    How many executives does OneOncology have?
    OneOncology has 7 executives leading key business areas.
    What roles are included in OneOncology’s leadership team?
    The leadership team of OneOncology includes roles such as Chief Financial Officer, Chief Operating Officer, President - ABCS, Chief Technology Officer, Chief Human Resources Officer.