Rothman Orthopaedics Executive and Leadership Team

September, 2026

Leadership Overview

Rothman Orthopaedics has 6 executives leading key functions including strategy, operations, financial oversight, clinical leadership, regional surgical management, and robotic spine innovation.

Committed to advancing musculoskeletal health, Rothman Orthopaedics delivers comprehensive orthopedic care through a patient-centered model that prioritizes clinical excellence and community-focused medical services across diverse regional markets.

Leadership Roles at Rothman Orthopaedics

  • Chief Executive Officer & Co-Founder - Charlotte Castillon
  • Interim Chief Financial Officer - Andy Thung
  • Chief Operating Officer - May Kane
  • President - Alexander Md
  • President and Chairman of Orthopaedic Surgery - Florida - Daryl Osbahr
  • President The Robotic Spine Institute of Jersey - Kornelis Poelstra
  • Charlotte Castillon - Chief Executive Officer & Co-Founder

    Charlotte Castillon, the Chief Executive Officer & Co-Founder at Rothman Orthopaedics, directs the overarching strategic vision for this private orthopedic practice. By aligning clinical goals with long-term growth objectives, the Chief Executive Officer & Co-Founder ensures the organization maintains high standards of patient care. Charlotte Castillon oversees the integration of specialized medical services, fostering a culture of innovation that defines the practice. This leadership role involves constant collaboration with the Board to refine operational models and expand the reach of orthopedic services. Through rigorous management of institutional resources, the Chief Executive Officer & Co-Founder drives the expansion of care delivery systems. By prioritizing patient outcomes, the executive secures the reputation of the practice as a leader in musculoskeletal health. Ultimately, the Chief Executive Officer & Co-Founder maintains the stability and mission-driven focus of the entire organization.

    Andy Thung - Interim Chief Financial Officer

    Andy Thung, the Interim Chief Financial Officer at Rothman Orthopaedics, directs the fiscal health and financial planning for the organization. Managing the capital structure and budgeting processes, the Interim Chief Financial Officer ensures the practice remains financially robust while investing in advanced medical technology. Andy Thung analyzes revenue cycles and cost structures to improve the economic efficiency of clinical operations. This leadership role involves providing the Board with accurate financial forecasting to guide long-term investment decisions. By overseeing the financial integrity of the practice, the Interim Chief Financial Officer supports the expansion of orthopedic services. The Interim Chief Financial Officer also monitors market trends to mitigate financial risks associated with healthcare delivery. Through disciplined fiscal management, the Interim Chief Financial Officer secures the resources necessary for the practice to continue providing high-quality care to the community.

    May Kane - Chief Operating Officer

    May Kane, the Chief Operating Officer at Rothman Orthopaedics, manages the daily administrative and clinical workflows that support the practice. Overseeing the efficiency of medical service delivery, the Chief Operating Officer optimizes resource allocation across all facilities. May Kane coordinates with department heads to streamline patient intake and surgical scheduling, ensuring seamless operations. This role requires constant monitoring of performance metrics to maintain the high quality of care expected from the practice. By implementing scalable operational frameworks, the Chief Operating Officer supports the growth of the organization. The Chief Operating Officer also manages the logistical complexities of multi-site healthcare delivery, ensuring that clinical teams possess the necessary tools for success. Through precise execution of operational strategies, the Chief Operating Officer directly impacts the overall productivity and patient satisfaction levels within the entire network.

    Alexander Md - President

    Alexander Md, the President at Rothman Orthopaedics, leads the clinical and administrative initiatives that define the practice. Overseeing the professional standards of the medical staff, the President ensures that all clinical services align with the mission of providing superior orthopedic care. Alexander Md coordinates with other C-suite leaders to implement strategic growth plans that enhance the market position of the practice. This role involves fostering relationships with medical partners and ensuring the consistent delivery of specialized treatments. By driving excellence in clinical outcomes, the President maintains the reputation of the organization as a premier provider. The President also evaluates new medical technologies to integrate into the existing service model. Through active leadership and clinical oversight, the President supports the overall success of the practice, ensuring that every patient receives high-quality, evidence-based care.

    Daryl Osbahr - President and Chairman of Orthopaedic Surgery - Florida

    Daryl Osbahr, the President and Chairman of Orthopaedic Surgery - Florida at Rothman Orthopaedics, directs the surgical operations and clinical strategy within the Florida market. Overseeing the expansion of orthopedic services in this region, the President and Chairman of Orthopaedic Surgery - Florida ensures that surgical teams adhere to the highest standards of care. Daryl Osbahr manages the recruitment of specialized surgeons and the implementation of advanced surgical techniques. This leadership role involves coordinating with the broader organization to ensure consistency in patient outcomes across all regional facilities. By driving growth in the Florida market, the President and Chairman of Orthopaedic Surgery - Florida strengthens the overall footprint of the practice. The President and Chairman of Orthopaedic Surgery - Florida also monitors regional market trends to adapt service offerings. Through focused regional leadership, the executive ensures the continued success of the practice in the southern market.
    Daryl Osbahr

    Kornelis Poelstra - President The Robotic Spine Institute of Jersey

    Kornelis Poelstra, the President The Robotic Spine Institute of Jersey at Rothman Orthopaedics, leads the specialized robotic spine surgery division. Overseeing the adoption of cutting-edge robotic technology, the President The Robotic Spine Institute of Jersey ensures that patients receive the most advanced spinal care available. Kornelis Poelstra manages the clinical protocols and surgical training programs specific to robotic procedures. This leadership role involves driving innovation in spine surgery to improve patient recovery times and surgical precision. By expanding the capabilities of the institute, the President The Robotic Spine Institute of Jersey enhances the competitive advantage of the practice in the New Jersey market. The President The Robotic Spine Institute of Jersey also collaborates with research teams to refine surgical methodologies. Through technical expertise and strategic oversight, the executive ensures that the institute remains at the forefront of robotic spine surgery.
    Kornelis Poelstra

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    Frequently Asked Questions Regarding Rothman Orthopaedics Top Executives and Leadership Team

    Who leads Rothman Orthopaedics?
    Rothman Orthopaedics is led by Charlotte Castillon (Chief Executive Officer & Co-Founder), along with executives such as Andy Thung (Interim Chief Financial Officer) and May Kane (Chief Operating Officer).
    Who is part of Rothman Orthopaedics’s executive team?
    The executive team of Rothman Orthopaedics includes leaders such as Charlotte Castillon (Chief Executive Officer & Co-Founder), Andy Thung (Interim Chief Financial Officer), May Kane (Chief Operating Officer) and other senior executives.
    How many executives does Rothman Orthopaedics have?
    Rothman Orthopaedics has 6 executives leading key business areas.
    What roles are included in Rothman Orthopaedics’s leadership team?
    The leadership team of Rothman Orthopaedics includes roles such as Chief Executive Officer & Co-Founder, Interim Chief Financial Officer, Chief Operating Officer, President, President and Chairman of Orthopaedic Surgery - Florida.