TMC Healthcare Executive and Leadership Team

June, 2026

Leadership Overview

TMC Healthcare has 6 executives leading key functions including strategy, operations, finance, legal, and staff support.

Driven by a commitment to community well-being, TMC Healthcare operates the Tucson Medical Center, delivering essential cardiac, emergency, neurological, and orthopedic services across the Arizona region.

Leadership Roles at TMC Healthcare

  • Chief Executive Officer - Mimi Coomler
  • Vice President & Chief Financial Officer - Bradley Hipp
  • Chief Operating Officer - Linda Wojtowicz
  • Chief of Staff - Michael Probstfeld
  • Executive Vice President & Chief Legal Officer - Tracy Nuckolls
  • Senior Vice President and Chief Legal Officer - Timothy Reuschel
  • Mimi Coomler - Chief Executive Officer

    Mimi Coomler, the Chief Executive Officer at TMC Healthcare, directs the overall strategic vision and operational framework for the organization. This leadership role involves guiding the Tucson Medical Center's expansion and service enhancement initiatives, ensuring alignment with community health needs and industry best practices. Coomler's oversight extends to fostering a culture of clinical excellence and patient-centered care across all departments, including cardiac, emergency, neurology, and orthopedic services. The Chief Executive Officer's responsibilities encompass driving financial sustainability and long-term growth, managing key stakeholder relationships, and ensuring the hospital maintains its position as a leading healthcare provider in the Tucson, AZ area. Mimi Coomler's strategic direction is fundamental to the hospital's mission of delivering high-quality medical services.

    Bradley Hipp - Vice President & Chief Financial Officer

    Bradley Hipp, the Vice President & Chief Financial Officer at TMC Healthcare, directs all financial operations and fiscal strategy for the organization. This critical executive function involves managing budgets, overseeing financial planning and analysis, and ensuring the fiscal health and sustainability of the Tucson Medical Center. Hipp's responsibilities extend to optimizing revenue cycles, managing investments, and securing funding to support the hospital's ongoing operations and capital expenditures for services like cardiac, emergency, and orthopedic care. The Vice President & Chief Financial Officer's leadership ensures robust financial controls and transparent reporting to stakeholders. Bradley Hipp's financial acumen is essential for driving growth and maintaining the organization's ability to provide comprehensive healthcare services.

    Linda Wojtowicz - Chief Operating Officer

    Linda Wojtowicz, the Chief Operating Officer at TMC Healthcare, manages the day-to-day operational activities of the Tucson Medical Center. This executive function involves optimizing resource allocation, streamlining workflows, and ensuring the efficient delivery of all medical services, from emergency care to specialized orthopedic treatments. Wojtowicz's purview includes overseeing departmental performance, implementing operational improvements, and maintaining high standards of patient care quality and safety across the facility. The Chief Operating Officer's role is critical in translating strategic objectives into executable operational plans, driving efficiency in areas such as patient throughput, staff scheduling, and facility management. Linda Wojtowicz ensures that the hospital's infrastructure and processes effectively support the provision of comprehensive cardiac, neurological, and emergency services.

    Michael Probstfeld - Chief of Staff

    Michael Probstfeld, the Chief of Staff at TMC Healthcare, serves as a key advisor and facilitator for the executive leadership team. This position involves coordinating strategic initiatives, managing internal communications, and ensuring seamless collaboration between different departments and leadership levels within the Tucson Medical Center. Probstfeld's responsibilities include supporting the Chief Executive Officer in executing organizational priorities and driving operational effectiveness across all service lines, including cardiac, neurology, and orthopedic care. The Chief of Staff's role is vital in enhancing organizational efficiency and fostering a cohesive leadership environment. Michael Probstfeld contributes to the strategic planning process and oversees special projects aimed at improving patient outcomes and operational performance.
    Tracy Nuckolls, the Executive Vice President & Chief Legal Officer at TMC Healthcare, oversees all legal affairs and compliance matters for the organization. This senior leadership role involves providing expert legal counsel on a wide range of issues, including healthcare regulations, corporate governance, and risk management for the Tucson Medical Center. Nuckolls' responsibilities encompass ensuring adherence to all applicable laws and standards, managing litigation, and advising the executive team on legal implications of strategic decisions related to services such as cardiac, neurology, and orthopedic care. The Executive Vice President & Chief Legal Officer's guidance is crucial for protecting the organization's interests and maintaining its ethical operations. Tracy Nuckolls plays a pivotal role in navigating the complex legal landscape of the healthcare industry.
    Timothy Reuschel, the Senior Vice President and Chief Legal Officer at TMC Healthcare, manages the comprehensive legal framework and regulatory compliance for the organization. This executive position involves providing strategic legal direction and oversight for the Tucson Medical Center's operations, ensuring all activities align with federal and state healthcare laws. Reuschel's duties include advising on corporate law, patient rights, and risk mitigation strategies across all service lines, including emergency, neurology, and orthopedic departments. The Senior Vice President and Chief Legal Officer's expertise is vital for safeguarding the hospital against legal challenges and upholding its commitment to patient safety and quality care. Timothy Reuschel's leadership ensures the organization operates within strict legal and ethical boundaries.

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    Frequently Asked Questions Regarding TMC Healthcare Top Executives and Leadership Team

    Who leads TMC Healthcare?
    TMC Healthcare is led by Mimi Coomler (Chief Executive Officer), along with executives such as Bradley Hipp (Vice President & Chief Financial Officer) and Linda Wojtowicz (Chief Operating Officer).
    Who is part of TMC Healthcare’s executive team?
    The executive team of TMC Healthcare includes leaders such as Mimi Coomler (Chief Executive Officer), Bradley Hipp (Vice President & Chief Financial Officer), Linda Wojtowicz (Chief Operating Officer) and other senior executives.
    How many executives does TMC Healthcare have?
    TMC Healthcare has 6 executives leading key business areas.
    What roles are included in TMC Healthcare’s leadership team?
    The leadership team of TMC Healthcare includes roles such as Chief Executive Officer, Vice President & Chief Financial Officer, Chief Operating Officer, Chief of Staff, Executive Vice President & Chief Legal Officer.