ONS Women’s Sports Medicine Center


People playing tennis at the court Young woman exercising. Woman running in the forrest with rocks

 Specialty treatment for active women by active women.

At the ONS Women’s Sports Medicine Center, we know women’s sports injuries- not just as female doctors but as athletes too.

Our team of experts consists of current and former athletes and fitness enthusiasts who know first-hand what it takes to train, compete and just stay physically fit.  They have served as team physicians for  numerous international biking and fencing championships, and currently provide medical coverage for the Columbia University sports teams and the Greenwich High School sports program.

The Women’s Sports Medicine team has experience treating the injuries that are most likely to plague active and athletic women and the conditions girls are prone to develop while pursuing excellence in sports, dance and other physical activities. They provide clinical expertise in sports and dance medicine, physiatry and physical therapy, orthopedic surgery, and prenatal and post-natal musculoskeletal health.  When needed, referrals for nutritional counseling and psychological support are available.


Katherine Vadasdi, MD
Orthopedic Surgeon
Sports Medicine Specialist Fellowship Training: Columbia University Medical Center

Tamar Kessel, MD
Interventional Sports and Spine
Fellowship Training: Hospital for Special Surgery

Alicia Hirscht, DPT, SCS, CSCS
Physical Therapist
APTA Sports Specialist
NSCA Strength and Conditioning Specialist
APTA Clinical Instructor
Graston Technique


Primary Care Sports Medicine
Sports and Dance Medicine
Orthopedic Surgery
Physical Therapy
Prenatal and post natal musculoskeletal health


The ONS Women’s Sports Medicine team diagnoses and provides medical management for acute, sub-acute and chronic sports-related musculoskeletal complaints including.


Exercise evaluation Biomechanical assessment / Functional assessments
Injury prevention strategies including ACL
Evaluation and treatment of musculoskeletal injuries
Evaluation of Female Athlete Triad
Advanced minimally-invasive surgical techniques
Physical Therapy


Ultrasound guided injections
Platelet Rich Plasma (PRP)
Trigger point injections
Fluoroscopically Guided Spinal Procedures

Referrals to qualified providers including bone health specialists, neurologists, nutritionists, OBGYNs and psychologists when needed.