Diagnostic Clinics in Mississauga, Ontario
ClinicFinder lists 6 diagnostic clinics in Mississauga. Of these, 3 offer same-day appointments, 1 is open until 8 PM or later and 6 are open on weekends. Top rated, weighing the rating against the number of reviews: The Lab (5.0/5 from 68 Google reviews).
Latest listing check October 2026
About diagnostic clinics in Mississauga
ClinicFinder lists 6 diagnostic clinics in Mississauga. 6 list Saturday hours and 2 are open on Sundays. The average patient rating is 3.8 out of 5, and 1 clinic is rated 4.5 or higher.
Call ahead if you are unsure about hours, and ask about fees and insurance before your visit.
Other care in Mississauga
Clinics and practitioners listed in the city, by type of care.
Diagnostic Clinics nearby
Neighbourhoods and cities around Mississauga.
Questions about diagnostic clinics in Mississauga
Answers from the listings above and Ontario's health plan.
How do I know if a diagnostic clinic in Mississauga is accepting new patients?
Call ahead and ask whether they are taking new patients. The listings above show each clinic's phone number and today's hours, so you can check before making the trip.
Which diagnostic clinic in Mississauga has the highest rating?
Among diagnostic clinics in Mississauga with at least 10 Google reviews, The Lab has the highest rating: 5/5 from 68 Google reviews.
Are there diagnostic clinics open on weekends in Mississauga?
Yes. 6 of the 6 listings above that publish their hours are open on Saturday or Sunday. Check each listing for its weekend hours.
Is diagnostic testing covered by health insurance in Ontario?
OHIP covers medically necessary physician services at walk-in clinics. Children 17 and under and low-income seniors 65+ may qualify for dental care through provincial programs. Physiotherapy is covered for patients under 20, over 65, or within 12 months of hospital discharge. Full details are on the OHIP page.
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