The IMA Group Executive and Leadership Team

November, 2026

Leadership Overview

The IMA Group has 4 executives leading key functions including strategy, operations, technology, and organizational leadership.

Focused on delivering objective medical evaluations, The IMA Group advances individual well-being through a national network of clinical providers. This organization empowers government agencies and employers by providing high-quality, data-driven health assessments that facilitate informed decision-making.

Leadership Roles at The IMA Group

  • Chief Executive Officer - Tabarrion Stoves
  • President, Chief Executive Officer & Board Member - Mark Weinberger
  • President - Seth Needelman
  • Chief Technology Officer - Michael Koenig
  • Tabarrion Stoves - Chief Executive Officer

    Tabarrion Stoves, the Chief Executive Officer at The IMA Group, directs the overarching strategic vision for this technology-enabled healthcare services organization. Stoves manages the expansion of medical and psychological evaluation services across the national footprint, ensuring alignment with the needs of government agencies and life sciences partners. By prioritizing operational excellence, the Chief Executive Officer drives the integration of clinical research into the broader service platform. Tabarrion Stoves maintains a focus on scaling workforce health solutions to meet increasing demand from institutional clients. This leadership role involves constant collaboration with the Board to refine long-term growth objectives and improve patient outcomes. Through the implementation of rigorous quality standards, the Chief Executive Officer secures the company's position as a leader in objective health assessments. Stoves fosters a culture of innovation, ensuring that every clinical evaluation supports informed decision-making for complex disability and employment-related challenges.
    Tabarrion Stoves

    Mark Weinberger - President, Chief Executive Officer & Board Member

    Mark Weinberger, the President, Chief Executive Officer & Board Member at The IMA Group, oversees the comprehensive execution of the corporate mission. Weinberger manages the intersection of healthcare delivery and administrative decision support, ensuring that all clinical sites maintain high standards of objectivity. As a key member of the Board, the President, Chief Executive Officer & Board Member shapes the governance framework that guides national operations. Mark Weinberger drives the development of integrated platforms that assist insurers and employers in navigating complex health and disability claims. This leadership role requires balancing patient-centric care with the administrative requirements of large-scale institutional clients. By optimizing the delivery of behavioral health assessments, the President, Chief Executive Officer & Board Member enhances the overall productivity of the workforce. Weinberger ensures that the organization remains responsive to evolving market demands while maintaining the integrity of every medical evaluation performed across the country.
    Mark Weinberger

    Seth Needelman - President

    Seth Needelman, the President at The IMA Group, manages the day-to-day operational efficiency of the company's extensive clinical provider network. Needelman directs the implementation of standardized evaluation protocols that ensure consistency across all regional sites. By overseeing the administrative workflows that support government agencies and life sciences organizations, the President ensures that client needs remain the primary focus of every clinical interaction. Seth Needelman drives the expansion of workforce health solutions, focusing on the practical application of medical assessments in disability and eligibility determinations. This leadership role involves coordinating with clinical directors to maintain high-quality outcomes while managing the logistical complexities of a national healthcare platform. Needelman monitors performance metrics to identify opportunities for process improvement and service optimization. Through the effective management of internal resources, the President supports the organization's goal of improving individual well-being and enabling productivity for clients across the United States.

    Michael Koenig - Chief Technology Officer

    Michael Koenig, the Chief Technology Officer at The IMA Group, architects the digital infrastructure necessary to support a national network of clinical evaluation centers. Koenig manages the development of proprietary software solutions that streamline medical and psychological assessments for government and private sector clients. By implementing advanced data security protocols, the Chief Technology Officer ensures the protection of sensitive health information across all research sites. Michael Koenig drives the digital transformation of the company's service platform, enabling more efficient communication between clinical providers and institutional stakeholders. This leadership role involves overseeing the integration of new diagnostic technologies that improve the accuracy and speed of health assessments. Koenig collaborates with other C-suite leaders to align technical capabilities with the organization's broader growth objectives. Through the deployment of scalable cloud-based systems, the Chief Technology Officer supports the company's mission to provide objective, high-quality health data to clients navigating complex disability and employment-related challenges.

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    Frequently Asked Questions Regarding The IMA Group Top Executives and Leadership Team

    Who leads The IMA Group?
    The IMA Group is led by Tabarrion Stoves (Chief Executive Officer), along with executives such as Mark Weinberger (President, Chief Executive Officer & Board Member) and Seth Needelman (President).
    Who is part of The IMA Group’s executive team?
    The executive team of The IMA Group includes leaders such as Tabarrion Stoves (Chief Executive Officer), Mark Weinberger (President, Chief Executive Officer & Board Member), Seth Needelman (President) and other senior executives.
    How many executives does The IMA Group have?
    The IMA Group has 4 executives leading key business areas.
    What roles are included in The IMA Group’s leadership team?
    The leadership team of The IMA Group includes roles such as Chief Executive Officer, President, Chief Executive Officer & Board Member, President, Chief Technology Officer.