OneBlood Executive and Leadership Team

May, 2026

Leadership Overview

OneBlood has 7 executives leading key functions including strategy, operations, finance, technology, administration, and medical affairs.

Driven by a commitment to saving lives, OneBlood is dedicated to ensuring a safe and reliable blood supply for communities, fostering a culture of compassion, and advancing transfusion medicine through innovation and excellence.

Leadership Roles at OneBlood

  • Chief Executive Officer & President - George Scholl
  • President & Chief Executive Officer - Clifford Numark
  • President & Chief Executive Officer - Valerie Collins
  • Chief Financial Officer - Roberta Buxton
  • Chief Operating Officer - Lynn Crow
  • Senior Vice President, Chief Information Officer - Scott Paul
  • Chief Administrative Officer - Martin Grable
  • Chief Medical Officer - Rita Reik
  • George Scholl - Chief Executive Officer & President

    George Scholl, the Chief Executive Officer & President at OneBlood, directs the organization's overarching strategy and operational execution. Scholl guides the non-profit's mission to provide a safe and reliable blood supply to hospitals, ensuring seamless integration of donation services with patient care needs. This leadership role involves fostering strong relationships with healthcare partners and community stakeholders to advance transfusion medicine. By optimizing resource allocation and driving strategic initiatives, George Scholl directly impacts the organization's capacity to meet critical blood demands across its service areas. Ultimately, Scholl secures the long-term sustainability and growth of OneBlood's vital services.

    Clifford Numark - President & Chief Executive Officer

    Clifford Numark, the President & Chief Executive Officer at OneBlood, spearheads the organization's strategic vision and executive leadership. Numark drives the non-profit's commitment to maintaining a robust and accessible blood donation network, essential for supporting hospital transfusion services. This executive position involves cultivating a culture of excellence and innovation within the organization, ensuring alignment with its core mission of saving lives. Through strategic planning and operational oversight, Clifford Numark enhances OneBlood's capacity to serve diverse communities and address evolving healthcare needs. Numark's leadership ensures the continued advancement of transfusion medicine and the reliable provision of critical blood products.

    Valerie Collins - President & Chief Executive Officer

    Valerie Collins, the President & Chief Executive Officer at OneBlood, commands the strategic direction and operational framework of the organization. Collins champions the non-profit's critical role in supplying blood products to hospitals, ensuring the highest standards of safety and availability. This executive leadership focuses on enhancing donor engagement and expanding the reach of donation services to meet community needs. By fostering collaborative partnerships and driving operational efficiencies, Valerie Collins strengthens OneBlood's impact on patient care. Collins's tenure is marked by a dedication to innovation in transfusion medicine and the unwavering pursuit of the organization's life-saving mission.

    Roberta Buxton - Chief Financial Officer

    Roberta Buxton, the Chief Financial Officer at OneBlood, directs all financial operations and fiscal strategy for the non-profit organization. Buxton oversees budgeting, financial planning, and resource management, ensuring the efficient allocation of funds to support blood donation services and hospital support. This critical role involves maintaining financial integrity and compliance, safeguarding the organization's assets while maximizing its capacity to serve the community. By implementing robust financial controls and driving fiscal responsibility, Roberta Buxton ensures OneBlood's long-term sustainability and its ability to meet the growing demand for blood products. Buxton's expertise underpins the organization's operational stability and strategic growth.

    Lynn Crow - Chief Operating Officer

    Lynn Crow, the Chief Operating Officer at OneBlood, manages the day-to-day operational activities and service delivery across the organization. Crow oversees the critical processes involved in blood collection, processing, testing, and distribution, ensuring the highest standards of safety and efficiency. This leadership position focuses on optimizing operational workflows and enhancing donor experiences to maintain a consistent and reliable blood supply for hospitals. By driving operational excellence and implementing innovative logistical solutions, Lynn Crow directly supports OneBlood's mission to save lives. Crow's strategic oversight ensures the seamless functioning of all operational departments, contributing significantly to the organization's impact.

    Scott Paul - Senior Vice President, Chief Information Officer

    Scott Paul, the Senior Vice President, Chief Information Officer at OneBlood, leads the organization's technology strategy and information systems. Paul directs the development and implementation of robust IT infrastructure, ensuring data security, system reliability, and efficient technological operations that support blood donation and distribution. This role is pivotal in leveraging technology to enhance donor engagement, streamline operational processes, and support critical medical services. By driving digital transformation and managing technological resources, Scott Paul ensures OneBlood remains at the forefront of innovation in health services technology. Paul's leadership guarantees the integrity and accessibility of information systems vital to the organization's mission.

    Martin Grable - Chief Administrative Officer

    Martin Grable, the Chief Administrative Officer at OneBlood, oversees the comprehensive administrative functions that support the organization's operational and strategic objectives. Grable directs human resources, legal affairs, and corporate governance, ensuring compliance with all regulatory requirements and fostering a productive work environment. This executive role is crucial for maintaining organizational efficiency and supporting the non-profit's mission through effective administrative policies and practices. By managing key support services and driving process improvements, Martin Grable enhances OneBlood's capacity to deliver essential blood services. Grable's leadership ensures the smooth functioning of internal operations, contributing to the overall success of the organization.
    Martin Grable

    Rita Reik - Chief Medical Officer

    Rita Reik, the Chief Medical Officer at OneBlood, provides critical medical leadership and oversight for all clinical operations and transfusion services. Reik directs the implementation of stringent medical protocols, ensuring the safety and efficacy of blood products and donation procedures. This executive position is fundamental to maintaining the highest standards of patient care and donor safety, guiding clinical research and development initiatives. By ensuring adherence to best practices in hematology and transfusion medicine, Rita Reik safeguards the integrity of OneBlood's medical services. Reik's expertise is instrumental in advancing the organization's commitment to public health and its life-saving mission.

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    Frequently Asked Questions Regarding OneBlood Top Executives and Leadership Team

    Who leads OneBlood?
    OneBlood is led by George Scholl (Chief Executive Officer & President), along with executives such as Clifford Numark (President & Chief Executive Officer) and Valerie Collins (President & Chief Executive Officer).
    Who is part of OneBlood’s executive team?
    The executive team of OneBlood includes leaders such as George Scholl (Chief Executive Officer & President), Clifford Numark (President & Chief Executive Officer), Valerie Collins (President & Chief Executive Officer) and other senior executives.
    How many executives does OneBlood have?
    OneBlood has 8 executives leading key business areas.
    What roles are included in OneBlood’s leadership team?
    The leadership team of OneBlood includes roles such as Chief Executive Officer & President, President & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer.