Spire Orthopedic Partners Appoints Dr. Katie Vadasdi and Dr. David Hergan as Chief Medical Officers

STAMFORD – September 16, 2025 – Spire Orthopedic Partners is proud to announce the appointments of Dr. Katie Vadasdi and Dr. David Hergan as Chief Medical Officers (CMOs), marking a significant milestone in the organization’s commitment to physician leadership.

Dr. Vadasdi, Sports Medicine Surgeon and Director of the Women’s Sports Medicine Center at Orthopaedic & Neurosurgery Specialists, and Dr. Hergan, Sports Medicine and Joint Replacement Surgeon at Middlesex Orthopedic & Spine Associates, will continue to serve as orthopedic surgeons and clinical leaders of their respective practices, both of which are part of the Spire network.

In their new roles, Drs. Vadasdi and Hergan will integrate physician insight into the organization’s strategic decision-making, working closely with clinical and operations teams across all Spire practices. Additionally, they will lead Spire’s practice-level clinical leadership teams, driving engagement and collaboration across the network of practices. Prior to their appointments as Spire CMOs, they were integral to a wide array of initiatives, including strategic growth, physician recruitment, revenue cycle management optimization, and operational efficiency.

Dr. Vadasdi earned her medical degree at Dartmouth Medical School. She completed a residency in orthopedics at Hospital for Special Surgery in New York and fellowship training in shoulder, elbow, and sports medicine at Columbia University Medical Center, Department of Orthopedics. She is board-certified by the American Board of Orthopaedic Surgery. Dr. Vadasdi has been honored as a Castle Connolly America’s Top Doctor and Regional Top Doctor annually since 2014. In 2017, she was named among the Exceptional Woman in Medicine by Castle Connolly.

“I am honored to step into the role of CMO, and to work alongside Dr. Hergan to provide the physician leadership that has been a hallmark of Spire’s success,” said Dr. Vadasdi. “This is an exciting time to help lead the organization’s commitment to clinical and operational excellence. Our physicians and our patients remain our top priority as we continue to focus on delivering the highest quality orthopaedic care in the country”

Dr. Hergan earned his medical degree at Chicago Medical School. He completed an orthopedic residency at the Medical College of Wisconsin, and a fellowship in sports medicine, arthroscopy at New York University/Hospital for Joint Diseases. Dr. Hergan is board-certified by the American Board of Orthopaedic Surgery and has a specialty board certification in orthopedic sports medicine. He has been named a Castle Connolly Top Doctor annually since 2022. He is the Chief of Orthopedic Surgery, Director of the Joint Replacement Program and Director of Quality Improvement for Orthopedics at Middlesex Hospital. Dr. Hergan has served as an orthopedic team physician for Wesleyan University since 2010.

“I am grateful for this opportunity to collaborate with Dr. Vadasdi and clinical leadership throughout our practices,” said Dr. Hergan. “I look forward to engaging our physicians to support key initiatives and drive continued success, while continuing to prioritize excellence of patient-care.”

“We are excited to have Drs. Vadasdi and Hergan as members of our executive team,” said Chris Fusco, CEO of Spire Orthopedic Partners. “As a majority physician-owned organization, physician leadership is key to our success, and we are eager to draw on their clinical and operational experience to deepen the connection between our practices and the entire Spire organization. Drs. Vadasdi and Hergan have been a part of the Spire story for more than five years, playing key roles in the evolution of the business from a single practice in Connecticut to one of the largest orthopedic networks in the country. No one is better suited to take on these new roles than they are.”

About Spire Orthopedic Partners
Headquartered in Stamford, Connecticut, Spire Orthopedic Partners is a growing partnership of orthopedic practices that provides the support, capital and operational resources physicians need to grow thriving practices in today’s evolving healthcare landscape. The Spire network spans the Northeast with more than 170 physicians, 1,800 employees, 285 other clinical providers and 40 locations in New York, Connecticut, Rhode Island and Massachusetts. For more information, visit https://spireortho.com.

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