Participating Sites


The following Ontario Breast Screening Program (OBSP) sites are participating in Mammothon 2018! Call your local site to ask about walk-in or extended hours, or learn more about what the site can do to make your appointment comfortable.

Facility Name Full Facility Address Contact Number
Bluewater Lawrence Imaging 960 Lawrence Avenue West, Suite 203 Toronto, Ont. M6A 3B5 (416) 462-0064
Keswick Advanced Imaging 23546 Woodbine Avenue, Keswick, Ont. L4P 0E2 (905) 989-0911
Lighthouse Medical Imaging 5 Fairview Mall Drive, Suite 100 Toronto, Ont. M2J 2Z1 (416) 499-3559
Markham Diagnostic Centre 5293 Hwy 7 East, Suite 205 Markham, Ont. L3P 7M7 (905) 294-6020
Ontario Medical Imaging 4256 Bathurst Street Suite 104, North York ON  M3H 5Y8 (416) 636-2196
Southlake Regional Health Centre 581 Davis Dr. Suite 372 Newmarket, Ont. L3Y 2P9 (905) 895-4521 ext. 6228
Stevenson Memorial Hospital 200 Fletcher Crescent Alliston, Ont. L9R 1W7 (705) 435-3377
True North Imaging Markham Women’s Health Centre 39 Main Street Markham North Markham, Ont. L3P 1X3 (905) 472-2713
True North Imaging-Thornhill 7330 Yonge Street, Suite 206 Thornhill, Ont. L4J 7Y7 (905) 889-5926
York Radiology 1333 Sheppard Avenue East, Suite 100 Toronto, Ont. M2J 1V1 (416) 494-8800

Ontario Breast Screening Program Sites

There are many OBSP sites in the Central Region, even if the site is not participating in Mammothon, you can still book a mammogram appointment at the clinic closest to you.

Click the map below to find the nearest OBSP site near you. You can call the site directly to book your mammogram or the OBSP toll-free number at 1-800-668-9304. 


For more information about who is eligible to get a mammogram, click here.