Harbor Health Executive and Leadership Team

August, 2026

Leadership Overview

Harbor Health has 4 executives leading key functions including financial strategy, technology infrastructure, market engagement, and clinical operations.

Focused on transforming outpatient care, Harbor Health delivers comprehensive medical services through a coordinated model that prioritizes long-term patient relationships and community-oriented wellness across all service lines.

Leadership Roles at Harbor Health

  • Chief Financial Officer - Randall Rainosek
  • Chief Technology Officer - Karthik Iyengar
  • Chief Marketing Officer - P. Hariharan
  • Chief Medical Officer - S. Claiborne Johnston
  • Randall Rainosek - Chief Financial Officer

    Randall Rainosek, the Chief Financial Officer at Harbor Health, directs all fiscal planning and capital allocation strategies to support the expansion of outpatient medical services. Overseeing the financial health of the organization, the Chief Financial Officer ensures that budgetary resources align with the mission of providing accessible primary care and preventive medicine. This leadership role involves managing complex revenue cycles and optimizing operational efficiency across the clinic network. By analyzing market trends and healthcare reimbursement models, Randall Rainosek secures the necessary funding to sustain long-term health management initiatives. The Chief Financial Officer also collaborates with the executive team to evaluate investment opportunities in virtual care technology. Through rigorous financial oversight, Rainosek maintains the fiscal stability required to deliver high-quality, community-oriented healthcare in an ambulatory setting, ultimately driving the sustainable growth of the entire organization.

    Karthik Iyengar - Chief Technology Officer

    Karthik Iyengar, the Chief Technology Officer at Harbor Health, architects the digital infrastructure necessary to integrate in-person visits with virtual care options. Overseeing the development of patient-facing platforms, the Chief Technology Officer ensures seamless continuity of care and improved accessibility for the entire patient population. This leadership role involves managing data security protocols and implementing advanced health information systems that support whole-person health. By leveraging modern software solutions, Karthik Iyengar enhances the coordination between medical, behavioral, and wellness services. The Chief Technology Officer also drives the adoption of innovative tools that streamline clinical workflows and improve the overall patient experience. Through the strategic deployment of technology, Iyengar enables the organization to maintain a competitive edge in the ambulatory healthcare market, ensuring that digital capabilities directly support the broader mission of delivering comprehensive, patient-focused medical services.
    Karthik Iyengar

    P. Hariharan - Chief Marketing Officer

    P. Hariharan, the Chief Marketing Officer at Harbor Health, directs all brand strategy and patient engagement initiatives to expand the reach of the organization's coordinated care model. Overseeing the communication of the value proposition, the Chief Marketing Officer ensures that the community understands the benefits of the primary care and preventive medicine services offered. This leadership role involves crafting targeted campaigns that highlight the integration of medical, behavioral, and wellness services. By analyzing patient demographics and market demand, P. Hariharan optimizes outreach efforts to build long-term relationships between patients and care teams. The Chief Marketing Officer also collaborates with clinical leadership to promote virtual care options and improve accessibility across the network. Through effective brand positioning, Hariharan drives patient acquisition and retention, ensuring that the organization remains a trusted provider of high-quality, community-oriented healthcare in an ambulatory setting.

    S. Claiborne Johnston - Chief Medical Officer

    S. Claiborne Johnston, the Chief Medical Officer at Harbor Health, directs all clinical standards and quality assurance protocols across the network of outpatient clinics. Overseeing the delivery of primary care and preventive medicine, the Chief Medical Officer ensures that every patient receives comprehensive, whole-person health management. This leadership role involves establishing evidence-based practices that integrate medical, behavioral, and wellness services into a unified care model. By monitoring clinical outcomes and patient satisfaction metrics, S. Claiborne Johnston maintains the highest standards of care quality. The Chief Medical Officer also collaborates with the technology team to refine virtual care delivery and improve continuity of care. Through the oversight of medical staff and clinical operations, Johnston drives the organization's commitment to building long-term relationships with patients, ensuring that the ambulatory care model effectively addresses the diverse health needs of the community.
    S. Claiborne Johnston

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    Frequently Asked Questions Regarding Harbor Health Top Executives and Leadership Team

    Who leads Harbor Health?
    Harbor Health is led by Randall Rainosek (Chief Financial Officer), along with executives such as Karthik Iyengar (Chief Technology Officer) and P. Hariharan (Chief Marketing Officer).
    Who is part of Harbor Health’s executive team?
    The executive team of Harbor Health includes leaders such as Randall Rainosek (Chief Financial Officer), Karthik Iyengar (Chief Technology Officer), P. Hariharan (Chief Marketing Officer) and other senior executives.
    How many executives does Harbor Health have?
    Harbor Health has 4 executives leading key business areas.
    What roles are included in Harbor Health’s leadership team?
    The leadership team of Harbor Health includes roles such as Chief Financial Officer, Chief Technology Officer, Chief Marketing Officer, Chief Medical Officer.