Tamar Kessel, MD
Katherine B. Vadasdi, MD
New Patients or patients who have not visited ONS in more than a year, please arrive 15 minutes prior to your scheduled appointment time to complete your registration or save time by completing the forms online with this link> New Patient Registration and Medical History form. Also please also bring the following to your appointment:
- Insurance card
- List of current medications and medical conditions
- Primary-care physician address and phone, and contact information for other physicians involved with your care
- Recent diagnostic images such as CTs, MRIs, x-rays, bone scans, or EMGs. Bring both original films and copies of reports.
6 Greenwich Office Park, Greenwich, CT 06831
Open: Monday- Friday | 8:00 a.m. to 5:00 p.m.
ONS Urgent Ortho Care Walk-in Hours: Monday- Thursday | 8:00 a.m. to 7:00 p.m. | Saturday | 12:00 p.m. – 4:00 p.m.
(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.
- 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