Southeast Primary Care Partners Executive and Leadership Team

September, 2026

Leadership Overview

Southeast Primary Care Partners has 6 executives leading key functions including strategic oversight, clinical operations, financial management, and physician network development.

Dedicated to advancing physician-led healthcare, Southeast Primary Care Partners prioritizes high-quality patient outcomes through a robust network of primary care practices across the region.

Leadership Roles at Southeast Primary Care Partners

  • Interim Chief Executive Officer - Michelle Speck
  • Chief Executive Officer & President & Co-Founder - Eric Lisle
  • Chief Financial Officer - John Walker
  • Chief Operating Officer - Grizelda Altamirano
  • President, IMPACT - Sheila Sylvan
  • Chief Medical Officer - Jonathan Kerley
  • Michelle Speck - Interim Chief Executive Officer

    Michelle Speck, the Interim Chief Executive Officer at Southeast Primary Care Partners, directs the overarching strategic vision for the physician-led network. Overseeing organizational stability during this transition, the Interim Chief Executive Officer ensures alignment between clinical excellence and administrative efficiency. This leadership role involves managing high-level stakeholder relationships and guiding the executive team toward long-term growth objectives. By optimizing internal processes, Michelle Speck maintains the operational integrity of the network. The Interim Chief Executive Officer fosters a culture of physician autonomy while driving the expansion of primary care services across the Southeast. Through rigorous oversight of corporate governance, the Interim Chief Executive Officer supports the mission of delivering superior patient care. Speck coordinates with the board to refine business models, ensuring the network remains competitive in the evolving healthcare landscape. Ultimately, the Interim Chief Executive Officer secures the foundation for future clinical success.

    Eric Lisle - Chief Executive Officer & President & Co-Founder

    Eric Lisle, the Chief Executive Officer & President & Co-Founder at Southeast Primary Care Partners, architects the foundational strategy for the physician-led network. Driving the expansion of primary care practices, the Chief Executive Officer & President & Co-Founder ensures the organization remains at the forefront of clinical innovation. This leadership role involves cultivating partnerships with independent physicians to strengthen the regional healthcare ecosystem. By championing a physician-led model, Eric Lisle empowers practitioners to deliver high-quality care while maintaining operational independence. The Chief Executive Officer & President & Co-Founder oversees the integration of new clinics into the network, ensuring consistent standards of excellence. Through strategic planning and market analysis, the Chief Executive Officer & President & Co-Founder identifies opportunities for sustainable growth. Lisle maintains a focus on long-term value creation for both patients and providers. Ultimately, the Chief Executive Officer & President & Co-Founder secures the network's position as a leader in primary healthcare.

    John Walker - Chief Financial Officer

    John Walker, the Chief Financial Officer at Southeast Primary Care Partners, directs the fiscal strategy and capital allocation for the physician-led network. Overseeing financial reporting and revenue cycle management, the Chief Financial Officer ensures the long-term economic viability of the organization. This leadership role involves analyzing market trends to inform investment decisions and resource distribution across the network. By maintaining robust financial controls, John Walker supports the sustainable growth of primary care practices. The Chief Financial Officer collaborates with the executive team to evaluate the financial impact of new clinical partnerships and expansion efforts. Through meticulous budget management, the Chief Financial Officer mitigates risk and maximizes operational efficiency. Walker provides the data-driven insights necessary for strategic decision-making at the board level. Ultimately, the Chief Financial Officer secures the financial health of the network, enabling continued investment in high-quality patient care and advanced medical infrastructure.

    Grizelda Altamirano - Chief Operating Officer

    Grizelda Altamirano, the Chief Operating Officer at Southeast Primary Care Partners, executes the daily operational workflows across the entire physician network. Managing the logistical complexities of multi-site clinical operations, the Chief Operating Officer ensures seamless service delivery for patients. This leadership role involves streamlining administrative functions to reduce overhead and improve practice efficiency. By implementing standardized protocols, Grizelda Altamirano optimizes the performance of individual clinics within the network. The Chief Operating Officer collaborates with regional directors to monitor key performance indicators and address operational bottlenecks. Through the deployment of scalable management systems, the Chief Operating Officer supports the rapid integration of new practices. Altamirano drives initiatives that enhance the patient experience while maintaining rigorous compliance standards. Ultimately, the Chief Operating Officer ensures that the operational infrastructure supports the clinical mission, allowing physicians to focus exclusively on patient care and health outcomes.

    Sheila Sylvan - President, IMPACT

    Sheila Sylvan, the President, IMPACT at Southeast Primary Care Partners, directs the specialized initiatives focused on clinical performance and practice transformation. Overseeing the IMPACT division, the President, IMPACT ensures that primary care practices receive the support necessary to thrive in a value-based healthcare environment. This leadership role involves designing programs that improve patient engagement and clinical efficiency. By leveraging data analytics, Sheila Sylvan identifies opportunities for practice optimization and quality improvement. The President, IMPACT collaborates with clinical leaders to implement strategies that enhance the overall effectiveness of the network. Through targeted training and resource allocation, the President, IMPACT empowers physicians to achieve superior health outcomes. Sylvan manages the execution of strategic projects that align with the network's mission of physician-led care. Ultimately, the President, IMPACT drives the transformation of primary care delivery, ensuring that the network remains a leader in clinical performance and patient satisfaction.

    Jonathan Kerley - Chief Medical Officer

    Jonathan Kerley, the Chief Medical Officer at Southeast Primary Care Partners, architects the clinical standards and quality improvement initiatives for the network. Overseeing the medical performance of primary care practices, the Chief Medical Officer ensures that patient care remains the central focus of the organization. This leadership role involves mentoring physicians and implementing evidence-based protocols to enhance health outcomes. By fostering a collaborative clinical environment, Jonathan Kerley drives the adoption of best practices across all locations. The Chief Medical Officer monitors clinical quality metrics to ensure compliance with industry standards and regulatory requirements. Through the integration of advanced medical technologies, the Chief Medical Officer supports physicians in delivering personalized care. Kerley coordinates with the executive team to align clinical goals with the broader business strategy. Ultimately, the Chief Medical Officer maintains the clinical excellence that defines the network, ensuring that every patient receives high-quality, physician-led care.

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    Frequently Asked Questions Regarding Southeast Primary Care Partners Top Executives and Leadership Team

    Who leads Southeast Primary Care Partners?
    Southeast Primary Care Partners is led by Michelle Speck (Interim Chief Executive Officer), along with executives such as Eric Lisle (Chief Executive Officer & President & Co-Founder) and John Walker (Chief Financial Officer).
    Who is part of Southeast Primary Care Partners’s executive team?
    The executive team of Southeast Primary Care Partners includes leaders such as Michelle Speck (Interim Chief Executive Officer), Eric Lisle (Chief Executive Officer & President & Co-Founder), John Walker (Chief Financial Officer) and other senior executives.
    How many executives does Southeast Primary Care Partners have?
    Southeast Primary Care Partners has 6 executives leading key business areas.
    What roles are included in Southeast Primary Care Partners’s leadership team?
    The leadership team of Southeast Primary Care Partners includes roles such as Interim Chief Executive Officer, Chief Executive Officer & President & Co-Founder, Chief Financial Officer, Chief Operating Officer, President, IMPACT.