Pediatric Associates Executive and Leadership Team

September, 2026

Leadership Overview

Pediatric Associates has 6 executives leading key functions including marketing, clinical operations, medical strategy, regional management, and human resources.

Dedicated to pediatric excellence, Pediatric Associates advances the health of children and families through compassionate care and high-quality service delivery across diverse communities.

Leadership Roles at Pediatric Associates

  • President, Market (West) - Angie O'Brien
  • Chief Marketing Officer - Amanda Root
  • Associate Chief of Staff - Rebecca Saunders
  • Associate Chief of Staff - Sherri Zingarelli
  • Chief Medical Officer - Rocky Slonaker
  • Chief People Officer & Head of Procurement, Supply Chain & Real Estate - Erika Jung
  • Angie O'Brien - President, Market (West)

    Angie O'Brien, the President, Market (West) at Pediatric Associates, directs all operational activities and growth strategies within the western regional market. Overseeing the performance of clinics in this territory, the President, Market (West) ensures that local teams meet organizational standards for service and care. This leadership role involves managing regional budgets and optimizing the distribution of medical resources to meet local demand. By fostering strong relationships with community stakeholders, Angie O'Brien directly impacts the market presence of the organization. Furthermore, the President, Market (West) coordinates with corporate leadership to implement national initiatives at the regional level. Through the effective management of clinic operations, O'Brien ensures that families receive consistent, high-quality pediatric healthcare. Ultimately, the President, Market (West) drives regional success by aligning local operational execution with the broader mission of the organization.

    Amanda Root - Chief Marketing Officer

    Amanda Root, the Chief Marketing Officer at Pediatric Associates, directs all brand positioning and patient engagement strategies. Overseeing digital outreach and community relations, the Chief Marketing Officer ensures consistent communication of the healthcare mission to families across the United States. This leadership role involves analyzing market trends to expand the reach of pediatric services while maintaining a compassionate brand identity. By optimizing patient acquisition channels, Amanda Root directly impacts the growth of the organization. Furthermore, the Chief Marketing Officer collaborates with clinical leadership to align promotional efforts with actual service capabilities. Through data-driven campaigns, Root strengthens the reputation of the practice, ensuring that families recognize the commitment to high-quality pediatric healthcare. Ultimately, the Chief Marketing Officer secures long-term brand loyalty by fostering trust within the communities served by the organization.
    Amanda Root

    Rebecca Saunders - Associate Chief of Staff

    Rebecca Saunders, the Associate Chief of Staff at Pediatric Associates, manages clinical workflows and operational efficiency within the medical practice. Overseeing daily patient care standards, the Associate Chief of Staff ensures that all clinical teams adhere to the highest quality benchmarks. This leadership role involves coordinating with medical providers to streamline diagnostic processes and improve patient outcomes. By implementing standardized care protocols, Rebecca Saunders directly impacts the effectiveness of pediatric service delivery. Furthermore, the Associate Chief of Staff monitors clinical performance metrics to identify areas for improvement in patient safety and satisfaction. Through rigorous oversight of medical staff, Saunders maintains a healthy and compassionate environment for children and families. Ultimately, the Associate Chief of Staff drives operational excellence by aligning clinical practices with the overarching mission of the organization.

    Sherri Zingarelli - Associate Chief of Staff

    Sherri Zingarelli, the Associate Chief of Staff at Pediatric Associates, architects strategic initiatives focused on pediatric wellness programs and preventative care models. Overseeing the integration of new health technologies, the Associate Chief of Staff ensures that clinical teams utilize modern tools to enhance patient interactions. This leadership role involves collaborating with regional directors to standardize care delivery across multiple locations. By refining the patient experience, Sherri Zingarelli directly impacts the long-term health outcomes of the pediatric population. Furthermore, the Associate Chief of Staff evaluates clinical resource allocation to maximize the efficiency of medical services. Through continuous assessment of healthcare delivery, Zingarelli supports the expansion of specialized pediatric programs. Ultimately, the Associate Chief of Staff fosters a culture of clinical innovation that sustains the reputation of the organization as a leader in pediatric healthcare.

    Rocky Slonaker - Chief Medical Officer

    Rocky Slonaker, the Chief Medical Officer at Pediatric Associates, governs all medical policies and clinical standards across the entire organization. Overseeing the recruitment and development of pediatricians, the Chief Medical Officer ensures that every provider maintains the highest level of expertise. This leadership role involves setting the strategic direction for medical services and ensuring compliance with national healthcare regulations. By championing evidence-based medicine, Rocky Slonaker directly impacts the quality of care provided to children and families. Furthermore, the Chief Medical Officer collaborates with the executive team to integrate clinical goals with business objectives. Through the oversight of medical quality assurance programs, Slonaker mitigates risks and enhances patient safety. Ultimately, the Chief Medical Officer drives the clinical vision of the organization, ensuring that every interaction reflects the core mission of compassionate and healthy pediatric care.
    Rocky Slonaker

    Erika Jung - Chief People Officer & Head of Procurement, Supply Chain & Real Estate

    Erika Jung, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate at Pediatric Associates, manages human capital strategies and the physical infrastructure of the organization. Overseeing talent acquisition and employee development, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate ensures that the workforce remains aligned with the mission of compassionate care. This leadership role involves optimizing the supply chain for medical equipment and managing real estate assets to support clinic expansion. By streamlining procurement processes, Erika Jung directly impacts the operational efficiency of the entire network. Furthermore, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate fosters a positive organizational culture that supports staff retention. Through the strategic management of physical and human resources, Jung ensures that the organization possesses the necessary tools to deliver exceptional pediatric services. Ultimately, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate secures the operational foundation of the organization.

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    Frequently Asked Questions Regarding Pediatric Associates Top Executives and Leadership Team

    Who leads Pediatric Associates?
    Pediatric Associates is led by Angie O'Brien (President, Market (West)), along with executives such as Amanda Root (Chief Marketing Officer) and Rebecca Saunders (Associate Chief of Staff).
    Who is part of Pediatric Associates’s executive team?
    The executive team of Pediatric Associates includes leaders such as Angie O'Brien (President, Market (West)), Amanda Root (Chief Marketing Officer), Rebecca Saunders (Associate Chief of Staff) and other senior executives.
    How many executives does Pediatric Associates have?
    Pediatric Associates has 6 executives leading key business areas.
    What roles are included in Pediatric Associates’s leadership team?
    The leadership team of Pediatric Associates includes roles such as President, Market (West), Chief Marketing Officer, Associate Chief of Staff, Associate Chief of Staff, Chief Medical Officer.