St. Charles Health System Executive and Leadership Team

October, 2026

Leadership Overview

St. Charles Health System has 10 executives leading key functions including strategy, financial oversight, and specialized clinical technology integration.

Committed to delivering comprehensive medical services across Central Oregon, St. Charles Health System prioritizes community health through a robust network of hospitals and clinics, ensuring high-quality care for all residents.

Leadership Roles at St. Charles Health System

  • President & Chief Executive Officer - Michael Hartke
  • Chief Financial Officer - Tom Sasley
  • Physician Infectious Disease Chief Technology Officer - Emma Considine
  • Chief Technology Officer, App Family Medicine - Beth Orton
  • Chief Technology Officer, App Rheumatology - Tianna Welch
  • Physician Womens Health Center Chief Technology Officer - Laurie Doyon
  • Physician General Surgery Chief Technology Officer - Samuel Garbus
  • Physician Orthopedics Chief Technology Officer - Adam Lindsay
  • Physician Medical Oncology Chief Technology Officer - Andrew Chen
  • Physician Pulmonary Chief Technology Officer - Juan Tamariz
  • Michael Hartke - President & Chief Executive Officer

    Michael Hartke, the President & Chief Executive Officer at St. Charles Health System, directs the overarching strategic vision for the entire regional network. Overseeing operations across Bend, Madras, Prineville, and Redmond, the President & Chief Executive Officer ensures alignment between clinical excellence and fiscal sustainability. This leadership role involves managing a workforce of over 4,600 caregivers while fostering partnerships with hundreds of medical staff members. By optimizing organizational workflows, Michael Hartke drives the expansion of healthcare access throughout Central Oregon. The President & Chief Executive Officer maintains rigorous standards for patient safety and service delivery, ensuring the health system remains the primary provider for the region. Through consistent engagement with the Board and community stakeholders, Hartke secures the long-term viability of this not-for-profit corporation, ultimately strengthening the healthcare infrastructure for all local populations.
    Michael Hartke

    Tom Sasley - Chief Financial Officer

    Tom Sasley, the Chief Financial Officer at St. Charles Health System, manages the fiscal health and capital allocation strategies for the entire organization. Overseeing budgetary planning for hospitals and family care clinics, the Chief Financial Officer ensures resources support the delivery of high-quality medical services. This leadership role involves analyzing revenue cycles and operational costs to maintain the financial stability of the largest employer in Central Oregon. By implementing robust financial controls, Tom Sasley drives efficiency across all clinical departments. The Chief Financial Officer collaborates with executive leadership to fund infrastructure improvements and technology upgrades, directly impacting the quality of patient care. Through meticulous oversight of fiscal reporting and regulatory compliance, Sasley protects the assets of the not-for-profit corporation, ensuring the health system continues to meet the diverse medical needs of the communities served across the region.

    Emma Considine - Physician Infectious Disease Chief Technology Officer

    Emma Considine, the Physician Infectious Disease Chief Technology Officer at St. Charles Health System, architects digital solutions specifically for infectious disease management and clinical surveillance. Overseeing the integration of diagnostic data systems, the Physician Infectious Disease Chief Technology Officer ensures rapid response capabilities for public health initiatives across the regional network. This leadership role involves deploying advanced analytics to track disease patterns and optimize treatment protocols within the hospitals and clinics. By streamlining electronic health records for infectious disease tracking, Emma Considine drives improved patient outcomes and clinical safety. The Physician Infectious Disease Chief Technology Officer collaborates with medical staff to implement cutting-edge diagnostic tools, enhancing the overall technological footprint of the health system. Through continuous innovation in clinical software, Considine strengthens the organization's ability to manage complex health challenges effectively across the Central Oregon service area.

    Beth Orton - Chief Technology Officer, App Family Medicine

    Beth Orton, the Chief Technology Officer, App Family Medicine at St. Charles Health System, directs the digital transformation of primary care services across all family care clinics. Overseeing the implementation of patient-facing applications and scheduling platforms, the Chief Technology Officer, App Family Medicine ensures seamless access to care for patients in Bend, La Pine, and Sisters. This leadership role involves optimizing telehealth infrastructure and digital communication tools to improve patient engagement. By modernizing the technological interface for family medicine, Beth Orton drives operational efficiency and enhances the patient experience. The Chief Technology Officer, App Family Medicine collaborates with clinical teams to integrate diagnostic software into daily practice, supporting the broader mission of the health system. Through the strategic deployment of health technology, Orton facilitates better coordination of care, ensuring that primary medical services remain accessible and efficient for the entire community.

    Tianna Welch - Chief Technology Officer, App Rheumatology

    Tianna Welch, the Chief Technology Officer, App Rheumatology at St. Charles Health System, architects specialized digital platforms for the management of rheumatic conditions. Overseeing the deployment of advanced imaging and patient monitoring software, the Chief Technology Officer, App Rheumatology ensures precise data collection for chronic disease management. This leadership role involves integrating specialized clinical applications into the broader health system network to support rheumatology practitioners. By leveraging data-driven insights, Tianna Welch drives improvements in treatment efficacy and patient outcomes. The Chief Technology Officer, App Rheumatology collaborates with medical staff to refine digital workflows, reducing administrative burdens and allowing for more focused patient care. Through the implementation of innovative technology, Welch enhances the diagnostic and therapeutic capabilities of the rheumatology department, ensuring that patients across the region receive high-quality, technologically supported care for complex autoimmune and musculoskeletal conditions.

    Laurie Doyon - Physician Womens Health Center Chief Technology Officer

    Laurie Doyon, the Physician Womens Health Center Chief Technology Officer at St. Charles Health System, directs the technological strategy for women's health services across the regional network. Overseeing the integration of specialized diagnostic and maternal health software, the Physician Womens Health Center Chief Technology Officer ensures that clinical teams possess the most advanced tools for patient care. This leadership role involves optimizing electronic health records to support comprehensive wellness programs and obstetric services. By implementing secure digital platforms, Laurie Doyon drives improvements in patient privacy and care coordination. The Physician Womens Health Center Chief Technology Officer collaborates with medical staff to enhance the technological infrastructure of the women's health clinics, supporting the health system's commitment to community wellness. Through the strategic application of health technology, Doyon ensures that women across Central Oregon receive high-quality, efficient, and modern medical services.

    Samuel Garbus - Physician General Surgery Chief Technology Officer

    Samuel Garbus, the Physician General Surgery Chief Technology Officer at St. Charles Health System, architects digital solutions for surgical planning and perioperative care. Overseeing the implementation of surgical information systems, the Physician General Surgery Chief Technology Officer ensures that operating rooms utilize the latest data-driven technologies for improved patient safety. This leadership role involves integrating robotic-assisted surgery platforms and digital monitoring tools into the general surgery department. By streamlining surgical workflows through technology, Samuel Garbus drives operational efficiency and enhances clinical outcomes. The Physician General Surgery Chief Technology Officer collaborates with surgical teams to maintain high standards of care across the health system's hospital locations. Through the continuous evaluation and deployment of surgical technology, Garbus supports the organization's mission to provide advanced, reliable, and effective surgical interventions for the diverse medical needs of the Central Oregon community.

    Adam Lindsay - Physician Orthopedics Chief Technology Officer

    Adam Lindsay, the Physician Orthopedics Chief Technology Officer at St. Charles Health System, directs the technological strategy for orthopedic services and musculoskeletal care. Overseeing the integration of advanced imaging software and orthopedic diagnostic tools, the Physician Orthopedics Chief Technology Officer ensures that clinical teams utilize precise data for patient treatment. This leadership role involves managing the digital infrastructure for joint replacement and sports medicine programs. By optimizing the use of health technology in orthopedics, Adam Lindsay drives improvements in patient recovery times and clinical outcomes. The Physician Orthopedics Chief Technology Officer collaborates with medical staff to implement innovative solutions that enhance the quality of care across the health system. Through the strategic deployment of specialized orthopedic software, Lindsay supports the organization's goal of providing high-quality, technologically advanced musculoskeletal services to patients throughout the regional network.

    Andrew Chen - Physician Medical Oncology Chief Technology Officer

    Andrew Chen, the Physician Medical Oncology Chief Technology Officer at St. Charles Health System, architects digital platforms for cancer care and oncology treatment planning. Overseeing the integration of chemotherapy management software and patient monitoring tools, the Physician Medical Oncology Chief Technology Officer ensures that oncology teams have access to accurate, real-time clinical data. This leadership role involves streamlining the coordination of complex treatment plans across the health system's facilities. By leveraging advanced analytics, Andrew Chen drives improvements in the precision and efficacy of cancer therapies. The Physician Medical Oncology Chief Technology Officer collaborates with medical staff to enhance the technological infrastructure supporting oncology services, ensuring high-quality care for patients. Through the strategic application of health technology, Chen facilitates better patient outcomes and supports the organization's commitment to providing comprehensive, technologically supported cancer care to the Central Oregon community.

    Juan Tamariz - Physician Pulmonary Chief Technology Officer

    Juan Tamariz, the Physician Pulmonary Chief Technology Officer at St. Charles Health System, directs the technological strategy for pulmonary and respiratory care services. Overseeing the integration of diagnostic equipment and respiratory monitoring software, the Physician Pulmonary Chief Technology Officer ensures that clinical teams utilize advanced tools for managing lung health. This leadership role involves optimizing digital workflows for pulmonary function testing and chronic respiratory disease management. By implementing innovative health technology, Juan Tamariz drives improvements in diagnostic accuracy and patient care coordination. The Physician Pulmonary Chief Technology Officer collaborates with medical staff to enhance the technological capabilities of the pulmonary department, supporting the health system's mission to provide high-quality respiratory services. Through the strategic deployment of specialized software and diagnostic tools, Tamariz ensures that patients across the region receive effective, technologically supported care for a wide range of pulmonary conditions.

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    Frequently Asked Questions Regarding St. Charles Health System Top Executives and Leadership Team

    Who leads St. Charles Health System?
    St. Charles Health System is led by Michael Hartke (President & Chief Executive Officer), along with executives such as Tom Sasley (Chief Financial Officer) and Emma Considine (Physician Infectious Disease Chief Technology Officer).
    Who is part of St. Charles Health System’s executive team?
    The executive team of St. Charles Health System includes leaders such as Michael Hartke (President & Chief Executive Officer), Tom Sasley (Chief Financial Officer), Emma Considine (Physician Infectious Disease Chief Technology Officer) and other senior executives.
    How many executives does St. Charles Health System have?
    St. Charles Health System has 10 executives leading key business areas.
    What roles are included in St. Charles Health System’s leadership team?
    The leadership team of St. Charles Health System includes roles such as President & Chief Executive Officer, Chief Financial Officer, Physician Infectious Disease Chief Technology Officer, Chief Technology Officer, App Family Medicine, Chief Technology Officer, App Rheumatology.