Pediatric Associates Executive and Leadership Team

August, 2026

Leadership Overview

Pediatric Associates has 8 executives leading key functions including clinical operations, marketing, human resources, supply chain, and regional market management.

Committed to pediatric excellence, Pediatric Associates delivers compassionate healthcare services to children and families while maintaining a healthy environment across all clinical locations.

Leadership Roles at Pediatric Associates

  • President, Market (West) - Angie O'Brien
  • Chief of Staff - Heather Hill
  • Chief Marketing Officer - Amanda Root
  • Chief Human Resources Officer - Karoline Lariviere
  • Associate Chief of Staff - Sherri Zingarelli
  • Associate Chief of Staff - Rebecca Saunders
  • 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 clinical and business operations within the western regional market. O'Brien oversees the performance of multiple pediatric clinics, ensuring that each location delivers the highest quality of care to local families. By managing regional growth strategies, the President, Market (West) expands the organization's footprint and increases access to pediatric services. Angie O'Brien coordinates with the executive leadership to implement corporate initiatives while tailoring operations to meet the specific needs of the western community. This role involves supervising regional staff, managing budgets, and ensuring that all clinics maintain a compassionate and healthy environment. Through effective leadership, the President, Market (West) drives patient satisfaction and clinical success across the region. O'Brien monitors regional health outcomes and implements improvements that support the organization's mission. The President, Market (West) ensures that the western market remains a cornerstone of the practice's healthcare delivery network.

    Heather Hill - Chief of Staff

    Heather Hill, the Chief of Staff at Pediatric Associates, directs internal administrative workflows and coordinates cross-departmental initiatives to ensure operational efficiency. Hill manages the executive office agenda, facilitating communication between the leadership team and clinical staff to maintain high standards of pediatric care. By streamlining organizational processes, the Chief of Staff supports the delivery of quality healthcare services across the Florida network. Heather Hill monitors key performance indicators to align daily activities with the broader mission of enhancing child health outcomes. This role requires constant collaboration with the medical board to refine service delivery models. Through rigorous oversight of administrative projects, the Chief of Staff optimizes resource allocation and improves patient access. Hill drives strategic initiatives that strengthen the organizational infrastructure, ensuring that the clinical environment remains compassionate and effective for all families served by the practice.

    Amanda Root - Chief Marketing Officer

    Amanda Root, the Chief Marketing Officer at Pediatric Associates, architects comprehensive brand strategies to expand market reach and increase patient engagement. Root oversees digital outreach, community relations, and public communication efforts to promote the organization's pediatric healthcare services. By analyzing market trends, the Chief Marketing Officer develops targeted campaigns that highlight the compassionate care provided to families. Amanda Root manages the brand identity, ensuring consistent messaging across all regional platforms. This leadership role involves collaborating with clinical directors to communicate service updates and health initiatives effectively. Through data-driven marketing tactics, the Chief Marketing Officer increases awareness of the practice's specialized pediatric offerings. Root optimizes the patient journey by integrating digital tools that simplify appointment scheduling and information access. Ultimately, the Chief Marketing Officer secures the organization's reputation as a leader in pediatric healthcare by fostering strong connections with the communities served.
    Amanda Root

    Karoline Lariviere - Chief Human Resources Officer

    Karoline Lariviere, the Chief Human Resources Officer at Pediatric Associates, directs talent acquisition, employee development, and organizational culture initiatives. Lariviere manages the recruitment of specialized pediatric staff, ensuring that clinical teams possess the expertise required to deliver high-quality care. By implementing robust training programs, the Chief Human Resources Officer fosters a professional environment focused on compassion and service excellence. Karoline Lariviere oversees performance management systems that align individual contributions with the company's long-term healthcare goals. This role involves navigating complex labor regulations and maintaining high standards of workplace safety across all clinical sites. Through strategic workforce planning, the Chief Human Resources Officer supports the expansion of medical services by ensuring adequate staffing levels. Lariviere drives initiatives that improve employee retention and satisfaction, which directly impacts the quality of care provided to children and families. The Chief Human Resources Officer maintains the organizational culture necessary for sustained clinical success.
    Karoline Lariviere

    Sherri Zingarelli - Associate Chief of Staff

    Sherri Zingarelli, the Associate Chief of Staff at Pediatric Associates, executes operational support strategies focused on clinical workflow optimization and administrative compliance. Zingarelli assists in the coordination of daily medical operations, ensuring that clinical teams adhere to established healthcare protocols. By monitoring facility performance, the Associate Chief of Staff identifies opportunities to improve patient throughput and service delivery efficiency. Sherri Zingarelli collaborates with the executive leadership to implement standardized procedures that enhance the quality of pediatric care. This role involves managing internal communications and supporting the integration of new clinical technologies. Through meticulous oversight of administrative tasks, the Associate Chief of Staff reduces operational friction and allows medical staff to focus on patient interactions. Zingarelli drives initiatives that maintain the compassionate environment central to the organization's mission. The Associate Chief of Staff ensures that all clinical locations operate in alignment with the broader strategic objectives of the practice.

    Rebecca Saunders - Associate Chief of Staff

    Rebecca Saunders, the Associate Chief of Staff at Pediatric Associates, directs special projects related to clinical quality assurance and patient safety protocols. Saunders manages the implementation of evidence-based practices across the network, ensuring that every child receives consistent, high-quality medical attention. By analyzing clinical data, the Associate Chief of Staff identifies areas for improvement in service delivery and patient outcomes. Rebecca Saunders coordinates with department heads to refine medical workflows and enhance the overall efficiency of the practice. This role involves overseeing regulatory compliance and ensuring that all clinical staff meet the rigorous standards set by the organization. Through proactive management of quality initiatives, the Associate Chief of Staff supports the delivery of compassionate healthcare in a healthy environment. Saunders drives improvements in patient care coordination, ensuring that families receive seamless support. The Associate Chief of Staff maintains the integrity of clinical operations through constant evaluation and process refinement.

    Rocky Slonaker - Chief Medical Officer

    Rocky Slonaker, the Chief Medical Officer at Pediatric Associates, directs the clinical strategy and medical standards for the entire organization. Slonaker oversees the quality of pediatric care, ensuring that all physicians and clinical staff adhere to the highest medical protocols. By evaluating new treatment modalities, the Chief Medical Officer drives innovation in pediatric healthcare delivery. Rocky Slonaker manages the recruitment and mentorship of medical professionals, fostering a culture of clinical excellence and compassion. This role involves collaborating with the executive team to align medical services with the organization's mission of enhancing child health. Through rigorous oversight of clinical outcomes, the Chief Medical Officer ensures that the practice remains a trusted provider for families. Slonaker monitors health trends and implements preventative care programs that improve long-term wellness for patients. The Chief Medical Officer maintains the clinical integrity of the practice by setting the standard for pediatric medical excellence.
    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, directs the integration of human capital management with physical infrastructure and supply logistics. Jung oversees the procurement of medical supplies, ensuring that clinical teams have the necessary resources to provide high-quality care. By managing real estate assets, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate optimizes the physical footprint of the practice to improve patient access. Erika Jung leads initiatives that align organizational culture with operational efficiency, ensuring that staff needs are met while maintaining a robust supply chain. This role involves negotiating vendor contracts and overseeing facility maintenance to support a compassionate healthcare environment. Through strategic management of both people and physical resources, the Chief People Officer & Head of Procurement, Supply Chain & Real Estate drives operational stability. Jung ensures that the organization's infrastructure supports its mission of delivering superior pediatric services.

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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 Heather Hill (Chief of Staff) and Amanda Root (Chief Marketing Officer).
    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)), Heather Hill (Chief of Staff), Amanda Root (Chief Marketing Officer) and other senior executives.
    How many executives does Pediatric Associates have?
    Pediatric Associates has 8 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 of Staff, Chief Marketing Officer, Chief Human Resources Officer, Associate Chief of Staff.