Mosaic Health Executive and Leadership Team

September, 2026

Leadership Overview

Mosaic Health has 8 executives leading key functions including strategy, health technology, medical group operations, organizational alignment, information systems, technical coordination, client relations, and human capital management.

Driven by a commitment to data-driven excellence, Mosaic Health optimizes advertising and marketing outcomes through a proprietary technology platform and an expansive network of media partners.

Leadership Roles at Mosaic Health

  • Chief Executive Officer - Douglas Wenners
  • Chief Executive Officer, Apree Health - Jonathan Porter
  • Mpg Chief Executive Officer - Tesha Simpson
  • Chief of Staff - Molly Haley
  • Chief Information Officer - Jeffrey Nelson
  • Chief of Staff To the Chief Information Officer - Erin Bessette
  • Chief of Staff, Office of the CCO - Merida Barker
  • Chief Human Resources Officer - Jamie Lovett
  • Douglas Wenners - Chief Executive Officer

    Douglas Wenners, the Chief Executive Officer at Mosaic Health, directs the overarching corporate strategy and long-term vision for the organization. By leveraging proprietary data assets, the Chief Executive Officer ensures the technology platform maintains a competitive edge within the advertising and marketing sectors. Douglas Wenners oversees the integration of media partner networks to maximize value for advertisers and marketers across North American markets. This leadership role involves constant collaboration with the Board to refine business models and drive sustainable growth. Through rigorous oversight of operational performance, the Chief Executive Officer maintains alignment between technical capabilities and client requirements. By fostering innovation in data analytics, the Chief Executive Officer secures the market position of the firm. Ultimately, the Chief Executive Officer drives the strategic initiatives that define the current trajectory of the company.
    Douglas Wenners

    Jonathan Porter - Chief Executive Officer, Apree Health

    Jonathan Porter, the Chief Executive Officer, Apree Health at Mosaic Health, manages the specialized health technology division focused on enhancing patient engagement through digital platforms. By architecting scalable solutions, the Chief Executive Officer, Apree Health aligns health-centric data assets with the broader corporate mission of delivering value to marketers. Jonathan Porter oversees the expansion of digital health initiatives across diverse regional markets, ensuring that technology deployments meet stringent industry standards. This role requires close coordination with the executive team to integrate health-focused insights into the primary advertising platform. By optimizing user experience and data accuracy, the Chief Executive Officer, Apree Health improves the efficacy of marketing campaigns for healthcare clients. Through consistent focus on technological advancement, the Chief Executive Officer, Apree Health drives the growth of the health-specific portfolio within the organization.

    Tesha Simpson - Mpg Chief Executive Officer

    Tesha Simpson, the Mpg Chief Executive Officer at Mosaic Health, directs the operational functions of the medical group division to ensure high-quality service delivery. By managing the intersection of clinical data and marketing technology, the Mpg Chief Executive Officer optimizes the value proposition for media organizations. Tesha Simpson oversees the implementation of operational protocols that streamline the flow of information between medical providers and the proprietary technology platform. This leadership role involves balancing clinical requirements with the commercial objectives of the firm. By driving efficiency in medical group operations, the Mpg Chief Executive Officer supports the broader organizational goal of creating actionable insights for advertisers. Through strategic resource allocation and process improvement, the Mpg Chief Executive Officer ensures that the medical group division remains a core pillar of the company's market impact.

    Molly Haley - Chief of Staff

    Molly Haley, the Chief of Staff at Mosaic Health, coordinates executive workflows and facilitates communication across all internal departments. By managing the strategic agenda for the leadership team, the Chief of Staff ensures that corporate initiatives remain aligned with the mission of leveraging data assets for marketing success. Molly Haley oversees the execution of cross-functional projects that require collaboration between the technology platform teams and media partners. This role involves synthesizing complex information to support decision-making processes at the highest level of the organization. By optimizing internal processes and communication channels, the Chief of Staff enhances the overall agility of the firm. Through the management of key organizational priorities, the Chief of Staff drives the operational rhythm necessary for sustained growth. Ultimately, the Chief of Staff ensures that the executive team functions with maximum efficiency.

    Jeffrey Nelson - Chief Information Officer

    Jeffrey Nelson, the Chief Information Officer at Mosaic Health, architects the robust technology infrastructure that powers the company's proprietary data assets. By overseeing the development and maintenance of the core platform, the Chief Information Officer ensures that advertisers and marketers receive high-performance tools for campaign management. Jeffrey Nelson directs the engineering teams responsible for data security, system scalability, and the integration of new media partner networks. This leadership role involves constant evaluation of emerging technologies to maintain a competitive advantage in the digital marketing landscape. By driving innovation in data processing and analytics, the Chief Information Officer supports the strategic goals of the entire organization. Through the management of technical resources, the Chief Information Officer ensures that the platform remains reliable and effective. Ultimately, the Chief Information Officer secures the technological foundation of the company.

    Erin Bessette - Chief of Staff To the Chief Information Officer

    Erin Bessette, the Chief of Staff To the Chief Information Officer at Mosaic Health, manages the operational activities and administrative priorities within the information technology department. By facilitating communication between the Chief Information Officer and the engineering teams, the Chief of Staff To the Chief Information Officer ensures that technical projects remain on schedule and aligned with corporate objectives. Erin Bessette oversees the allocation of resources for software development and infrastructure maintenance. This role involves tracking key performance indicators related to platform stability and data integrity. By streamlining the workflow of the IT department, the Chief of Staff To the Chief Information Officer enhances the productivity of the technical staff. Through the coordination of departmental initiatives, the Chief of Staff To the Chief Information Officer supports the successful delivery of technology solutions to the company's diverse client base.

    Merida Barker - Chief of Staff, Office of the CCO

    Merida Barker, the Chief of Staff, Office of the CCO at Mosaic Health, manages the strategic operations and client-facing initiatives within the office of the Chief Commercial Officer. By coordinating the efforts of the sales and marketing teams, the Chief of Staff, Office of the CCO ensures that the company's proprietary technology platform effectively reaches target advertisers and media organizations. Merida Barker oversees the implementation of client engagement strategies that drive revenue growth and market penetration. This role involves synthesizing market feedback to inform the development of new service offerings. By optimizing the interaction between the company and its vast network of media partners, the Chief of Staff, Office of the CCO enhances the overall value proposition. Through the management of commercial priorities, the Chief of Staff, Office of the CCO drives the success of the company's market-facing activities.

    Jamie Lovett - Chief Human Resources Officer

    Jamie Lovett, the Chief Human Resources Officer at Mosaic Health, directs the talent acquisition, employee development, and organizational culture initiatives that support the company's growth. By aligning human capital strategies with the business model of leveraging data assets, the Chief Human Resources Officer ensures that the firm attracts and retains top-tier talent in the technology and marketing sectors. Jamie Lovett oversees the implementation of performance management systems that drive accountability and innovation across all departments. This leadership role involves fostering an inclusive environment that encourages collaboration between diverse teams. By optimizing organizational structure and employee engagement, the Chief Human Resources Officer supports the long-term success of the company. Through the management of human capital, the Chief Human Resources Officer drives the internal capabilities necessary to maintain a competitive edge. Ultimately, the Chief Human Resources Officer secures the talent foundation of the organization.
    Jamie Lovett

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    Frequently Asked Questions Regarding Mosaic Health Top Executives and Leadership Team

    Who leads Mosaic Health?
    Mosaic Health is led by Douglas Wenners (Chief Executive Officer), along with executives such as Jonathan Porter (Chief Executive Officer, Apree Health) and Tesha Simpson (Mpg Chief Executive Officer).
    Who is part of Mosaic Health’s executive team?
    The executive team of Mosaic Health includes leaders such as Douglas Wenners (Chief Executive Officer), Jonathan Porter (Chief Executive Officer, Apree Health), Tesha Simpson (Mpg Chief Executive Officer) and other senior executives.
    How many executives does Mosaic Health have?
    Mosaic Health has 8 executives leading key business areas.
    What roles are included in Mosaic Health’s leadership team?
    The leadership team of Mosaic Health includes roles such as Chief Executive Officer, Chief Executive Officer, Apree Health, Mpg Chief Executive Officer, Chief of Staff, Chief Information Officer.