After-Hours Urgent Ortho Care is now available in Wilton, Monday to Friday from 4:00 pm to 7:00 pm and Saturdays from 12:00 to 4:00 pm. Walk-ins welcome.

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Please note: Orthopaedic & Neurosurgery Specialists (ONS) requires payment of outstanding balances at the time of check-in for your appointment. Thank you.

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ONS Greenwich

Services

Urgent Ortho Care, Physical and Occupational Therapy, MRI, X-ray, Ultrasound-Guided Injections, Nerve Conduction Studies and Electromyography (EMG), Orthobiologics, and Workers' Compensation and Personal Injury

Physician Office

Monday | 8:30 am – 7:00 pm
Tuesday – Friday | 8:30 am – 5:00 pm
By Appointment

Urgent Ortho Care

Orthopedic Injury Care, When You Need It

Same-Day Appointments
Monday – Friday | 8:30 am – 5:00 pm

After-Hours Walk-In Care
Monday – Friday | 4:00 – 7:00 pm
Saturday | 12:00 – 4:00 pm

Physical and Occupational Therapy

Monday – Thursday | 7:00 am – 7:00 pm
Friday | 7:00 am – 5:00 pm
Saturday | 7:00 am – 12:00 pm
By Appointment

MRI

Monday – Friday | 8:00 am – 9:00 pm
Saturday | 8:00 am – 5:00 pm
By Appointment

Business Office

9 Greenwich Office Park
Monday – Friday | 8:00 am – 5:00 pm

Our physician office, physical and occupational therapy, after-hours urgent ortho care, and MRI are located at 6 Greenwich Office Park. Our business office is located at 9 Greenwich Office Park.

Directions Southbound:

Take I-95 SOUTH
Take Exit 3/Arch St. Go RIGHT off the ramp onto Arch St.
Follow directions from Arch St.

Northbound:

Take I-95 NORTH
Take Exit 3/Arch Street. Go LEFT off the ramp onto Arch Street
Follow directions from Arch Street

From Arch Street in Greenwich:

Continue straight on Arch St. Turn LEFT at the 2nd traffic light, just after the overpass, onto Railroad Ave.
At the second traffic light, turn RIGHT onto Prospect St.
At traffic light, turn LEFT onto West Putnam Ave. and proceed to 2nd traffic light.
Turn RIGHT at light onto Valley Drive. Proceed on Valley Drive (approximately .25 miles).
Turn LEFT at sign for Greenwich Office Park. ONS is building #6.

From Northern Westchester:

Take I-684 SOUTH to Exit 3/ RT-22 NORTH for .2 miles.
Turn LEFT onto NY-22 N/Armonk Bedford Rd. for .5 miles.
Turn RIGHT onto North Greenwich Rd.which becomes Riversville Rd.
Continue on Riversville Rd. for 6 miles.
Turn LEFT at light onto Glenville Rd. for .2 miles.
Turn RIGHT onto East Weaver St. for 1.5 miles. Enter Greenwich Office Park on the left. ONS is building #6

From Merritt Parkway N & S:

Take Exit 28 (Round Hill Rd.)
Going SOUTH: turn LEFT onto Round Hill Rd.
Going NORTH: turn RIGHT onto Round Hill Rd.
Proceed 2.8 miles to intersection of Round Hill Rd. and Lake Ave.
Turn RIGHT onto Lake Ave. and proceed 1.2 miles to rotary. Turn RIGHT onto Glenville Rd. for .3 miles.
Turn LEFT onto Valley Drive for .6 miles. (Valley Drive becomes Upland Drive, then turns back into Valley Drive.) Turn RIGHT into Greenwich Office Park. ONS is building #6

Physicians & Staff

Showing 26 of 26Showing 26 of 26
Paul Apostolides, MD
  • Neurosurgery
  • Spine

Practicing in:

Greenwich
Frank Aversano, MD
  • Hand and Upper Extremity

Practicing in:

Greenwich, Stamford, and Wilton
Director of the ONS Outpatient Joint Replacement Center
Jonathan L. Berliner, MD
  • Hip and Knee Replacement

Practicing in:

Greenwich and Wilton
Matthew B. Cantlon, MD
  • Hand and Upper Extremity

Practicing in:

Greenwich and Stamford
Eliana Cardozo, DO
  • Physiatry
  • Spine
  • Sports Medicine

Practicing in:

Greenwich, Stamford, and Wilton
Co-Director, ONS Outpatient Joint Replacement Center; Director of Joint Replacement, GH
Kevin J. Choo, MD
  • Hip and Knee Replacement

Practicing in:

Greenwich, Harrison, and Stamford
Michael R. Clain, MD
  • Foot and Ankle

Practicing in:

Greenwich
Demetris Delos, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich and Stamford
Amory J. Fiore, MD
  • Neurosurgery
  • Spine

Practicing in:

Greenwich
Megan M. Gleason, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich, Stamford, and Wilton
Director, ONS Sports Concussion Center
Benjamin Greene, MD
  • Primary Care Sports Medicine
  • Sports Medicine

Practicing in:

Greenwich and Harrison
Tim Greene, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich and Stamford
Jeffrey Heftler, MD
  • Physiatry
  • Spine
  • Sports Medicine

Practicing in:

Greenwich
Medical Director, Orthopedic Trauma, Greenwich Hospital
Michael B. Held, MD, MBA
  • Hip and Knee Replacement

Practicing in:

Wilton, Greenwich, and Stamford
Director of Ultrasound
Tamar Kessel, MD
  • Physiatry
  • Spine
  • Sports Medicine

Practicing in:

Greenwich
Marc S. Kowalsky, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich, Stamford, and Harrison
Melissa LaRusso, DO
  • Rheumatology

Practicing in:

Greenwich and Stamford
Seth R. Miller, MD
Marc Otten, MD
  • Neurosurgery
  • Spine

Practicing in:

Greenwich, Harrison, and Stamford
Andrew Pao, MD
  • Foot and Ankle

Practicing in:

Greenwich and Stamford
Jordan Pasternack, MD
  • Foot and Ankle

Practicing in:

Greenwich, Wilton, and Harrison
Paul M. Sethi, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich and Harrison
Paul M. Tomaszewski, MD, MS
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich, Wilton, and Stamford
Chief Medical Officer & Director of the ONS Women's Sports Medicine Center
Katie B. Vadasdi, MD
  • Sports Medicine
  • Shoulder

Practicing in:

Greenwich and Stamford
Chief of Orthopaedic Surgery at Greenwich Hospital
Mark A. Vitale, MD, MPH
  • Hand and Upper Extremity

Practicing in:

Greenwich and Stamford
Chief Clinical Informatics Officer
David Wei, MD, MS
  • Hand and Upper Extremity

Practicing in:

Greenwich and Harrison

Showing 21 of 21Showing 21 of 21
Andrea Arnone, PA-CPhysician Assistant
Maya Brady, PA-C
Geraldine DeGuzman-Javier, PA-CPhysician Assistant
Gregory Farenga, PA-CPhysician Assistant
Haley Fox, PA-CPhysician Assistant
Nicole Greco, PA-CLead Physician Assistant
Caroline Hillman, PA-CPhysician Assistant

    Practicing in:

    Greenwich and Stamford
    Kevin Hwang, PA-CPhysician Assistant

      Practicing in:

      Greenwich and Harrison
      Kaitlyn Kasinskas, PA-C
      Jennifer Kiggins, PA-CPhysician Assistant

        Practicing in:

        Greenwich and Stamford
        Jennifer LaVerdi, PA-CPhysician Assistant
        Amber McDonald, PA-C
        Jessica McDonald, PA-CPhysician Assistant

          Practicing in:

          Greenwich and Stamford
          Nicole Porter, MA, PA-CPhysician Assistant

            Practicing in:

            Greenwich and Harrison
            Christopher Prezzano, PA-CPhysician Assistant
            Husain Rangwala, PA-CPhysician Assistant

              Practicing in:

              Greenwich and Harrison
              Morgan Reish, PA-CPhysician Assistant
              Jason Salomon, MMS, PA-CPhysician Assistant
              Donna Silverstein, PA-CPhysician Assistant
              Rachele Struthers, PA-C
              Samantha White, PA-CPhysician Assistant

                Practicing in:

                Stamford and Greenwich

                Showing 4 of 4Showing 4 of 4
                Amanda Kairouz, RNRegistered Nurse

                  Practicing in:

                  Greenwich, Harrison, Stamford, and Wilton
                  Katherine Luciano, RNRegistered Nurse
                  Lauren Orlovsky, RNRegistered Nurse

                    Practicing in:

                    Greenwich, Harrison, Stamford, and Wilton
                    Charlotte Sperling, APRNNurse Practitioner

                    Showing 7 of 7Showing 7 of 7
                    Carmen Bauer-Rowe, DPTPhysical Therapist
                    Andrew Del Carmine, DPTPhysical Therapist
                    Kaleena Justiniano, PT, DPTPhysical Therapist
                    Tatyana Kalyuzhny, DPT, MDTDirector of Physical Therapy, ONS Greenwich
                    Gil Moskowitz, DPTPhysical Therapist
                    Alessandra Neu, DPTPhysical Therapist
                    Brian Ranger, DPTPhysical Therapist

                    Showing 3 of 3Showing 3 of 3
                    Finbar Doyle, ATCCertified Athletic Trainer
                    Peter Falla, ATCAthletic Trainer
                    Allison Serraro, ATCDurable Medical Equipment (DME) Coordinator