Director of the ONS Women’s Sports Medicine Center, Katherine Vadasdi, MD is an orthopedic surgeon who is fellowship trained in adolescent and adult sports medicine as well as shoulder and elbow surgery.

Dr. Vadasdi graduated from Dartmouth College and earned her medical degree at Dartmouth Medical School. She performed a residency in orthopedics at the Hospital for Special Surgery (HSS) in New York and completed fellowship training in shoulder, elbow and sports medicine at Columbia University Medical Center, Department of Orthopedics. While at Columbia she was assistant team physician to Columbia University Athletics. Dr. Vadasdi has been honored as a Castle Connolly America’s Top Doctor and Regional Top Doctor annually since 2014. In 2017, she was the recipient of the Fairfield County Doctor of Distinction Award and was named among the Exceptional Woman in Medicine by Castle Connolly. In 2019, Dr. Vadasdi was honored with a Women Who Inspire award from the Greenwich YWCA.

As a member of the Board of Directors at the ONS Foundation for Clinical Research and Education, Dr. Vadasdi is active in ongoing research, including the current groundbreaking study to curb opioid addiction among teens and athletes. She has been published in numerous prestigious industry journals such as the Journal of Shoulder and Elbow Surgery and the Journal of Orthopaedic Trauma.

Additionally, Dr. Vadasdi serves as a mentor through the Foundation’s Research and Summer Internship Programs, including the Mini-Med School program, which provides 15 high school students the opportunity to participate in an orthopedic workshop.

Dr. Vadasdi is the designated team doctor for Greenwich High School, Iona Preparatory School, Convent of the Sacred Heart and many local public schools. She is a frequent guest speaker for local organizations, parent groups and at medical conferences. Dr. Vadasdi participates on a number of committees and boards, including the Greenwich Hospital Women’s Health Initiative Board of Directors and the Hospital’s Peer Review Board.

Dr. Vadasdi’s area of medical specialty reflects her personal interests. She is an accomplished triathlete, having completed Ironman competitions in 2007 and 2009. Dr. Vadasdi is also an alpine climber who has ascended Mount Kilimanjaro, Mount Rainier and the Grand Teton, among others.

• American Academy of Orthopaedic Surgeons
• American Orthopaedic Society for Sports Medicine
• Ruth Jackson Orthopaedic Society
• Connecticut Orthopaedic Society
• Columbia University Athletics | Assistant Team Physician 2008–2009

• Castle Connolly Exceptional Women in Medicine, 2017–2021
• Castle Connolly Top Doctor in New York Metro Area 2014–2023
• Greenwich Magazine Top Doctor In Fairfield County, 2013–2022
• Stamford Magazine Top Doctor in Fairfield County, 2015–2022
• Darien/New Canaan Magazine Top Doctor in Fairfield County, 2015–2022
• Westport Magazine Top Doctor in Fairfield County, 2015–2022
• America’s Most Honored Professionals 2019 | Top 1%
• Greenwich YWCA Women Who Inspire Award 2019
• Fairfield Magazine Top Doctor 2015–2018
• Doctor of Distinction, 2017 Female Trailblazer Award
• 40 Under 40 WAG/FFCBJ Award 2014

• The Opioid Crisis and Opioid Sparing Techniques in Surgery
• Arthroscopic Rotator Cuff Surgery
• ACL Injury Prevention, Treatment & Management
• Juvenile Osteochondritis Dissecans
• Health iQ