Please be advised we are currently experiencing higher than normal call volumes. We apologize for the inconvenience and appreciate your patience.

Contact Information

Greenbrook Clinic (main site)

421 Greenbrook Drive Unit #23B 
Kitchener, ON N2M 4K1
Phone: 519-578-3510
Fax: 519-578-6040

Clinic Hours

Hours of Operation:

Our phones will be answered Monday to Thursday from 8:30 a.m. to 7:00 p.m. and Friday from 8:30 a.m. to 5:00 p.m.  

Note: Phones are turned off between 12:30 p.m. to 1:30 p.m. each day.

**Effective September 7th, we will be making the following changes: 
The phones will be answered Monday to Friday from 8:30 a.m. to 5:00 p.m. The phones will no longer be turned off from 12:30-1:30 p.m. The doors will be open from 8:30 a.m. to 8:00 p.m. Monday to Thursday and from 8:30 a.m. to 5:00 p.m. on Friday.

Dr. Balraj Singh's Clinic

430 The Boardwalk, Suite #208
Waterloo, ON N2T 0C1
Phone: 519-742-0107
Please contact this number only if you are a patient of Dr. Singh
Fax: 519-742-4657
Phone calls at The Boardwalk site are answered Mondays
to Thursdays from 8:30 a.m. to 5:00 p.m. and Fridays from 8:30 a.m. to 4:00 p.m.

Clinic Hours

Currently offering telephone visits unless instructed otherwise.


After Hours Clinic

Phones will be answered by one of our staff on Saturday and Sunday from 9:00 a.m. to 12:00 p.m.  Physicians will do as much as possible by phone or virtually. They may arrange to assess you in-person if needed. 

Monday to Thursday after 7:00 p.m., Friday after 5 p.m. and Saturday and Sunday after 12:00 p.m., please call 1-866-553-7205 to be assessed by a Telehealth Registered Nurse.

Please do not walk in to our clinic to book an appointment or seek advice. Our team continues to work very hard to actively screen patients by phone and decide how to manage things accordingly.

***Effective September 7th, we will be making the following changes: 

All after-hours care will be in-person appointments effective September 7th. Evening and weekend after-hours care will still require appointments. Phones will be answered on Saturdays, Sundays, and statutory holidays (for urgent matters only) from 8:30 a.m. to 11:30 a.m. Physicians will see patients in-person from 9:00 a.m. to 12:00 p.m. Please visit our website for more information.

In Case of Emergency

In an emergency, you should call 9-1-1 or go to your local hospital's emergency department.

Telephone Health Advisory Service (THAS)

THAS is a free, confidential telephone service that is available to enrolled/rostered patients for health advice from a Registered Nurse when the New Vision office is closed.

THAS Phone Number: 1-866-553-7205

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