Laboratory Contact

Contact information for our laboratories located across the province.

Laboratory Customer Service

Monday to Friday, 7:30 a.m. to 7 p.m.
Saturday, 8 a.m. to 3:45 p.m.

Tel.: 416-235-6556

Toll Free: 1-877-604-4567

Fax: 416-235-6552

Customer Service Can Help You With:

Laboratory Hours of Operation

All labs are open Monday to Friday 8 a.m. to 5 p.m. EST

After Hours Emergencies

Contact our After Hours Duty Officer at 416-605-3113 or your local PHO laboratory.



Tel.: 905-385-5379

Toll Free: 1-866-282-7376

Fax: 905-385-0083

Location: 250 Fennell Avenue West
Hamilton, ON L8N 3R5

Mailing Address: P.O. Box 2100, Hamilton, ON L8N 3R5


Tel.: 613-548-6630

Toll Free: 1-855-546-4745

Fax: 613-547-1185

Location: 181 Barrie Street
Kingston, ON K7L 3K2

Mailing Address: P.O. Box 240, Kingston, ON K7L 4V8


Tel.: 519-455-9310

Toll Free: 1-877-204-2666

Fax: 519-455-3363

Location: 5th Floor, 850 Highbury Avenue
London, ON N5Y 1A4

Mailing Address: 5th Floor, 850 Highbury Avenue, London, ON N5Y 1A4


Tel.: 705-325-7449

Toll Free: 1-877-611-6998

Fax: 705-329-6001

Location: 750 Memorial Avenue
Orillia, ON L3V 6K5

Mailing Address: P.O. Box 600, Orillia, ON L3V 6K5


Tel.: 613-736-6800

Fax: 613-736-6820

Mailing Address: 2380 St. Laurent Boulevard, Ottawa, ON K1G 6C4


Tel.: 705-743-6811

Fax: 705-745-1257

Location: 99 Hospital Drive
Peterborough, ON K9J 6Y8

Mailing Address: P.O. Box 265, Peterborough, ON K9J 6Y8

Sault Ste. Marie

Tel.: 705-254-7132

Toll Free: 1-800-263-0409

Fax: 705-945-6873

Mailing Address: 160 McDougald St, Sault Ste. Marie, ON P6A 3A8


Tel.: 705-564-6917

Toll Free: 1-888-564-6917

Fax: 705-564-6918

Mailing Address: 1300 Paris Street, Suite 2, Sudbury, ON P3E 6H3

Thunder Bay

Tel.: 807-622-6449

Fax: 807-622-5423

Mailing Address: 336 South Syndicate Avenue, Thunder Bay, ON P7E 1E3


Tel.: 705-267-6633

Toll Free: 1-888-267-7181

Fax: 705-360-2006

Mailing Address: 67 Wilson Avenue, Timmins, ON P4N 2S5


Tel.: 416-235-6556

Toll Free: 1-877-604-4567

Fax: 416-235-6552

Delivery Instructions: Directions to Shipping Dock for Clinical Samples

Mailing Address: 661 University Avenue, Suite 1701, Toronto, ON M5G 1M1

Updated 10 May 2019