Tennessee Oncology Executive and Leadership Team

May, 2026

Leadership Overview

Tennessee Oncology has 5 executives leading key functions including strategy, operations, finance, human resources, and medical affairs.

Driven by a commitment to patient well-being, Tennessee Oncology is dedicated to advancing cancer care through innovative treatments and comprehensive support services, significantly impacting patient outcomes across Middle Tennessee and beyond.

Leadership Roles at Tennessee Oncology

  • President & Chief Executive Officer - Natalie Dickson
  • Chief Financial Officer - Ronald Horowitz
  • Chief Operating Officer - Susan Frailley
  • Senior Vice President, Chief Human Resources Officer - Stephen Kennedy
  • Chief Medical Officer - Casey Chollet-Lipscomb
  • Natalie Dickson - President & Chief Executive Officer

    Natalie Dickson, the President & Chief Executive Officer at Tennessee Oncology, directs the overarching strategy and executive leadership for the organization. This role involves setting the vision for patient care, ensuring alignment with the company's mission of improving outcomes through innovative treatments. Dickson oversees the integration of specialized oncology nursing care, laboratory services, outpatient chemotherapy, and PET/CT services, ensuring a comprehensive approach to cancer treatment. The President & Chief Executive Officer also guides the expansion and operational efficiency of the practice's 30 locations across Middle Tennessee, Chattanooga, and Northwest Georgia. This leadership position is critical for maintaining Tennessee Oncology's status as a leading physician-owned practice, fostering physician collaboration, and driving the organization's commitment to patient education and support services. Natalie Dickson's executive oversight ensures the continued delivery of high-quality, patient-centered cancer care.
    Natalie Dickson

    Ronald Horowitz - Chief Financial Officer

    Ronald Horowitz, the Chief Financial Officer at Tennessee Oncology, oversees all financial planning, management, and reporting for the organization. This includes managing the financial health of a large, physician-owned practice with over 75 physicians and 30 locations. Horowitz directs budgeting, forecasting, and financial analysis to support strategic decision-making and ensure the long-term viability of Tennessee Oncology. The Chief Financial Officer is responsible for optimizing revenue cycles, managing payer contracts, and ensuring the efficient allocation of financial resources across specialized oncology nursing care, laboratory services, and outpatient chemotherapy. Ronald Horowitz's financial acumen is crucial for sustaining the practice's innovative treatments and comprehensive patient support services across Middle Tennessee, Chattanooga, and Northwest Georgia. This leadership ensures financial stability, enabling continued investment in patient care advancements.

    Susan Frailley - Chief Operating Officer

    Susan Frailley, the Chief Operating Officer at Tennessee Oncology, manages the day-to-day operational execution of the company's extensive network. This involves optimizing the delivery of comprehensive cancer care services across all 30 locations, ensuring seamless integration of laboratory services, outpatient chemotherapy, and PET/CT services. Frailley directs the operational workflows that support specialized oncology nursing care and patient education programs, directly impacting patient experience and treatment efficacy. The Chief Operating Officer is responsible for enhancing operational efficiencies, managing resource allocation, and ensuring compliance with healthcare regulations across Middle Tennessee, Chattanooga, and Northwest Georgia. This role is vital for scaling the practice's capabilities while maintaining the high standards of care for which Tennessee Oncology is recognized. Susan Frailley's operational leadership ensures the effective functioning of all clinical and support departments.

    Stephen Kennedy - Senior Vice President, Chief Human Resources Officer

    Stephen Kennedy, the Senior Vice President, Chief Human Resources Officer at Tennessee Oncology, leads all human capital strategies and initiatives for the organization. This role is critical for supporting a team of over 75 physicians and a large clinical and administrative staff across 30 locations. Kennedy directs talent acquisition, employee relations, compensation and benefits, and professional development programs, ensuring a skilled and motivated workforce. The Senior Vice President, Chief Human Resources Officer fosters a culture that supports the delivery of specialized oncology nursing care and innovative treatments. Stephen Kennedy's strategic HR leadership ensures that Tennessee Oncology attracts and retains top talent, essential for maintaining its reputation for improving patient outcomes and providing comprehensive cancer care services throughout Middle Tennessee, Chattanooga, and Northwest Georgia. This focus on human resources underpins the organization's operational success.

    Casey Chollet-Lipscomb - Chief Medical Officer

    Casey Chollet-Lipscomb, the Chief Medical Officer at Tennessee Oncology, provides critical medical leadership and strategic direction for clinical operations. This role ensures the highest standards of patient care are maintained across all services, including specialized oncology nursing care, laboratory services, outpatient chemotherapy, and PET/CT services. The Chief Medical Officer guides the implementation of innovative treatments and best practices, directly contributing to improved patient outcomes. Chollet-Lipscomb collaborates closely with physicians and operational leaders to enhance the quality and efficiency of care delivery throughout the practice's 30 locations in Middle Tennessee, Chattanooga, and Northwest Georgia. Casey Chollet-Lipscomb's medical expertise is fundamental to Tennessee Oncology's mission of providing comprehensive and compassionate cancer care. This leadership ensures clinical excellence and patient safety are paramount.
    Casey Chollet-Lipscomb

    Explore Leadership Teams in Hospitals & Physicians Clinics

    Frequently Asked Questions Regarding Tennessee Oncology Top Executives and Leadership Team

    Who leads Tennessee Oncology?
    Tennessee Oncology is led by Natalie Dickson (President & Chief Executive Officer), along with executives such as Ronald Horowitz (Chief Financial Officer) and Susan Frailley (Chief Operating Officer).
    Who is part of Tennessee Oncology’s executive team?
    The executive team of Tennessee Oncology includes leaders such as Natalie Dickson (President & Chief Executive Officer), Ronald Horowitz (Chief Financial Officer), Susan Frailley (Chief Operating Officer) and other senior executives.
    How many executives does Tennessee Oncology have?
    Tennessee Oncology has 5 executives leading key business areas.
    What roles are included in Tennessee Oncology’s leadership team?
    The leadership team of Tennessee Oncology includes roles such as President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Senior Vice President, Chief Human Resources Officer, Chief Medical Officer.