WellStreet Executive and Leadership Team

September, 2026

Leadership Overview

WellStreet has 4 executives leading key functions including strategy, financial oversight, clinical operations, and human capital management.

Focused on expanding high-quality urgent care access through strategic health system partnerships, WellStreet delivers exceptional patient experiences across diverse regional markets while continuously evolving to meet the healthcare demands of tomorrow.

Leadership Roles at WellStreet

  • Chief Executive Officer - Lisa Mikkelsen
  • Chief Financial Officer - Thomas Simons
  • Chief Operating Officer & Chief Medical Officer - Michael Duchynski
  • Chief People Officer - Michelle Ansley
  • Lisa Mikkelsen - Chief Executive Officer

    Lisa Mikkelsen, the Chief Executive Officer at WellStreet, directs the overarching corporate strategy and long-term vision for the organization. Mikkelsen architects the expansion of urgent care networks through high-impact partnerships with major health systems across North Georgia, Southeastern Michigan, and beyond. By aligning clinical excellence with operational scalability, the Chief Executive Officer ensures consistent service delivery across all regional footprints. Mikkelsen maintains direct oversight of executive leadership initiatives, fostering a culture dedicated to patient-centric care models. This leadership role involves navigating complex healthcare landscapes to secure sustainable growth and market relevance. Through rigorous evaluation of partnership opportunities, Lisa Mikkelsen drives the evolution of the urgent care brand. Ultimately, the Chief Executive Officer secures the organizational mission by balancing rapid network deployment with the maintenance of best-in-class quality standards for every patient interaction within the growing network.
    Lisa Mikkelsen

    Thomas Simons - Chief Financial Officer

    Thomas Simons, the Chief Financial Officer at WellStreet, manages the fiscal health and capital allocation strategies necessary for rapid network expansion. Simons oversees financial planning, budgeting, and revenue cycle management to support the operational requirements of urgent care facilities across multiple states. By analyzing market trends and partnership performance, the Chief Financial Officer optimizes resource distribution to maximize efficiency. Thomas Simons coordinates with the executive team to ensure financial stability during the integration of new health system partnerships. This role involves rigorous monitoring of operational costs and investment returns to sustain the long-term viability of the urgent care model. Through precise financial forecasting, the Chief Financial Officer mitigates risks associated with scaling healthcare services. Ultimately, Simons provides the economic foundation required to support the company mission, ensuring that financial resources align with the commitment to providing high-quality patient care across all regional operations.

    Michael Duchynski - Chief Operating Officer & Chief Medical Officer

    Michael Duchynski, the Chief Operating Officer & Chief Medical Officer at WellStreet, governs the intersection of clinical quality and daily operational execution. Duchynski architects standardized medical protocols that ensure consistent patient outcomes across all urgent care locations. By supervising clinical staff and facility workflows, the Chief Operating Officer & Chief Medical Officer maintains the high standards required by health system partners. Michael Duchynski integrates medical expertise into operational processes to enhance patient safety and service efficiency. This dual-function role involves managing the complexities of multi-state healthcare delivery while upholding the clinical integrity of the brand. Through the implementation of best-in-class care models, the Chief Operating Officer & Chief Medical Officer drives operational excellence across the entire network. Ultimately, Duchynski ensures that clinical performance remains the cornerstone of the company, supporting the overarching goal of meeting patient needs through reliable, high-quality urgent care services.

    Michelle Ansley - Chief People Officer

    Michelle Ansley, the Chief People Officer at WellStreet, leads the human capital strategy to attract, develop, and retain top-tier talent across the organization. Ansley architects comprehensive programs for employee engagement, professional development, and organizational culture to support the rapid growth of the urgent care network. By aligning workforce capabilities with the evolving needs of health system partnerships, the Chief People Officer ensures that every teammate contributes to the mission of providing best-in-class patient experiences. Michelle Ansley manages talent acquisition strategies that scale effectively across diverse regional markets. This leadership role involves fostering an inclusive environment where clinical and administrative staff thrive. Through the implementation of robust training and performance management systems, the Chief People Officer drives organizational alignment and operational readiness. Ultimately, Ansley secures the human foundation of the company, ensuring that the workforce remains committed to the high standards of care that define the brand.

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    Frequently Asked Questions Regarding WellStreet Top Executives and Leadership Team

    Who leads WellStreet?
    WellStreet is led by Lisa Mikkelsen (Chief Executive Officer), along with executives such as Thomas Simons (Chief Financial Officer) and Michael Duchynski (Chief Operating Officer & Chief Medical Officer).
    Who is part of WellStreet’s executive team?
    The executive team of WellStreet includes leaders such as Lisa Mikkelsen (Chief Executive Officer), Thomas Simons (Chief Financial Officer), Michael Duchynski (Chief Operating Officer & Chief Medical Officer) and other senior executives.
    How many executives does WellStreet have?
    WellStreet has 4 executives leading key business areas.
    What roles are included in WellStreet’s leadership team?
    The leadership team of WellStreet includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer & Chief Medical Officer, Chief People Officer.