Well Health Diagnostic Centres: 40+ OHIP Locations in Ontario

WELL Health Diagnostic Centres operates Ontario’s largest network of OHIP-covered diagnostic imaging and specialist services, with 50+ accredited centres and over 40 locations across the province. The network spans everything from basic X-ray walk-ins to nuclear cardiology, staffed by 700+ healthcare professionals — making it easier to find a centre near work, home, or transit.

Locations: 50+ in Ontario · Centres: 50+ accredited · Professionals: 700+ · Coverage: OHIP and AHCIP

What is WELL Health Diagnostic Centre?

WELL Health Diagnostic Centres is Ontario’s largest integrated network for physician-ordered diagnostic imaging and specialist services. The organization operates 50+ locations across the province and forms part of the broader WELL Health Clinic Network, which spans 150+ clinics Canada-wide (PocketHealth). Every centre functions as an Integrated Community Health Services Centre — a designation that places them under the same regulatory umbrella as hospital-based outpatient imaging, but typically with shorter wait times and faster report turnaround, according to the network’s official site (WELL Health Diagnostic Centres).

History and founding

The network traces its origins to 2013, when it launched as a collection of community diagnostic centres with a focus on radiology and cardiology imaging. Over the following decade it expanded through acquisitions and new openings, eventually joining the WELL Health Clinic Network umbrella to become one of Canada’s largest primary and specialist care platforms. The 150+ clinic footprint across Canada positions it alongside major hospital networks as a primary access point for diagnostic services outside emergency departments (PocketHealth).

Network size and coverage

With 50+ accredited centres across Ontario and Alberta, the network covers imaging and diagnostics that would otherwise require hospital referrals or longer waits. The scope includes cardiology, radiology, respirology, endocrinology, and sleep diagnostics — all delivered by over 700 healthcare professionals (WELL Health Diagnostic Centres). The centres hold the rare distinction of being the only Integrated Community Health Services Centres in Ontario and Alberta to carry Exemplary Standing accreditation, the highest level awarded by accreditation bodies (WELL Health Diagnostic Centres). This matters because accreditation directly affects which provincial funding programs will cover a centre’s services.

The implication: patients choosing WELL Health Diagnostic Centres gain access to facilities that meet the highest quality benchmarks recognized by provincial healthcare authorities.

Where are WELL Health Diagnostic Centres located?

The network reaches across Southern Ontario from Ajax and Pickering in the east to London, Simcoe, and Sarnia in the west, with concentrations in the Greater Toronto Area, Hamilton-Niagara region, and communities like Brantford, Huntsville, and Sudbury. Specific addresses and hours vary by location, and not every centre offers every service — PET/CT imaging, for instance, is available at the Mississauga location on Eglinton Avenue West, while basic X-ray walk-ins are available at multiple Toronto and Simcoe sites (WELL Health Diagnostic Centres Locations).

Verified addresses from official and health authority sources include the Toronto King site at 11 King St W, Suite C100, Toronto (offering walk-in X-ray, last updated December 16, 2024); the Oshawa Professional Building at 300 King Street West, Suite 201 (open 7:30am–4pm Monday to Friday); and the Pickering Brookdale Centre location at 1105 Kingston Rd, Building D, Suite 202 (wheelchair accessible, offering bone density, mammography, prenatal screening, ultrasound, and vascular ultrasound) (Toronto Central Healthline) (Central East Healthline).

Additional confirmed locations include Brampton Chrysler Drive at 470 Chrysler Drive, Unit 28 (free parking available); Brampton Centre at 31 Centre Street South; Brantford at 40 Shellington Place, Suite 201; Delhi at 105 Main Street; Huntsville at 348 Muskoka District Road 3, Suite 202; and Mississauga PET/CT at 2300 Eglinton Avenue West, Suite G02 (PocketHealth) (WELL Health Diagnostic Centres Locations). London alone hosts five distinct sites — Arva, Fanshawe, Southdale, Wharncliffe Cardiology, and Wharncliffe Imaging — each with different service scopes (WELL Health Diagnostic Centres Locations).

Toronto

Toronto hosts at least two well-documented sites. The King Street location at 11 King St W, Suite C100 (X-ray walk-in available) and the Bay Street location offering ultrasound and X-ray, both requiring medical referrals except for walk-in X-ray. Most services at these Toronto sites are covered by OHIP; the notable exception is blood pressure monitoring, which falls outside provincial coverage (Toronto Central Healthline) (Toronto Central Healthline).

Newmarket, Ottawa, Mississauga, and other cities

The network’s location pages list centres in Newmarket, Ottawa, Mississauga, Milton, Scarborough, and North York, though comprehensive address-level detail for each site is not fully enumerated in public sources. Mississauga’s PET/CT centre at 2300 Eglinton Avenue West, Suite G02 is among the more specialized sites, offering positron emission tomography combined with computed tomography — a service not available at every location (WELL Health Diagnostic Centres Locations).

The catch: urban centres like Toronto and Mississauga offer the widest service menus, while northern and rural locations may have more limited offerings — patients outside major metros should verify availability at their specific location before travelling.

What services does WELL Health Diagnostic Centre offer?

The centre menu spans diagnostic imaging, cardiology, respirology, endocrinology, and sleep diagnostics. Radiology services include X-ray, ultrasound, bone mineral density (DEXA scans), mammography, nuclear medicine, PET/CT, sonohysterography, and image-guided biopsy. Cardiology services include ECG, echocardiography, exercise stress testing, Holter monitoring, nuclear cardiology (MPI), and blood pressure monitoring (the latter is not covered by OHIP at most locations) (WELL Health Diagnostic Centres) (Central East Healthline).

OHIP-covered services — the core offering that brings most patients — include ultrasound, X-ray, bone density scan, ECG, echocardiogram, mammogram, nuclear bone scan, nuclear cardiology (MPI), nuclear medicine, OBSP breast screening, PET/CT scan, and sonohysterogram. The full list appears in detail on patient-facing resources like PocketHealth, which maintains a service-by-service breakdown for the network (PocketHealth).

Diagnostic imaging

Imaging services are the most widely available offering across the network. X-ray is offered on a walk-in basis at select locations, meaning no appointment is needed for plain radiographs. Bone density scans, mammography, ultrasound, and vascular ultrasound require a signed physician requisition — except for Ontario Breast Screening Program (OBSP) mammography, which women aged 40–74 can self-refer through the program (WELL Health Diagnostic Centres) (PocketHealth).

Cardiology and radiology

Cardiology services at WELL Health Diagnostic Centres include echocardiography (heart ultrasound), ECG, stress testing, Holter monitoring (24-48 hour rhythm monitoring), and nuclear cardiology using myocardial perfusion imaging (MPI). Radiology goes beyond plain imaging to include nuclear medicine and PET/CT, with the Mississauga PET/CT site specifically equipped for cancer staging, cardiac viability assessment, and neurological imaging. The network is reportedly the only community-based diagnostic provider in Ontario offering this full range of nuclear cardiac services outside a hospital setting (WELL Health Diagnostic Centres).

Sleep studies and respirology

Sleep diagnostic services are offered across multiple locations for patients with suspected sleep apnea, restless leg syndrome, and other sleep-disordered breathing conditions. Respirology consultations are available for patients referred for chronic lung conditions, asthma, and COPD management. Both service lines are covered by OHIP when referred by a physician, making them accessible at network centres without hospital waitlists (WELL Health Diagnostic Centres).

The pattern: the network’s breadth of services means most routine and specialized diagnostics can be handled in one place, reducing the need for referrals to multiple providers.

Does WELL Health Diagnostic Centre accept OHIP?

Yes — OHIP covers the vast majority of diagnostic services at WELL Health Diagnostic Centres. The provincial plan directly covers ultrasound, X-ray, bone density, ECG, echocardiogram, mammogram, nuclear imaging, PET/CT, OBSP screening, and sleep diagnostics when ordered through a signed physician requisition. The centres bill OHIP directly, meaning patients with a valid Ontario Health Card incur no out-of-pocket cost for covered services (WELL Health Diagnostic Centres) (PocketHealth).

Covered services

OHIP coverage extends across imaging, cardiology, respirology, endocrinology, and sleep diagnostics — the five specialty areas that define the network’s scope. AHCIP (Alberta Health Care Insurance Plan) covers the same services at the network’s Alberta locations, making the centres accessible to patients from both provinces with their respective provincial cards. The two exceptions noted across multiple sources are blood pressure monitoring (not covered by OHIP at most sites) and any services received without a valid requisition where one is required (Toronto Central Healthline).

Billing process

When a physician issues a requisition for a WELL Health Diagnostic Centre, the centre confirms the referral and bills OHIP directly. Patients should bring their Ontario Health Card and the requisition form to their appointment. Walk-in X-ray requires the same requisition — the walk-in aspect refers to not needing a pre-booked time slot, not to bypassing the referral requirement. For OBSP mammography, eligible women can self-refer without a new physician requisition — they need only meet the age and screening interval criteria set by the program (WELL Health Diagnostic Centres) (PocketHealth).

How to book an appointment at WELL Health Diagnostic Centre?

Booking paths vary by service type. For most diagnostic tests and specialist consultations, patients need a signed requisition from their referring physician — that physician typically initiates or coordinates the booking. For walk-in X-ray at select locations, no appointment is needed at all. For OBSP mammography, eligible women can self-refer through the Ontario Breast Screening Program without going through a family doctor for a new requisition (WELL Health Diagnostic Centres).

Online booking

The network’s official site provides an online booking option and a location finder with service menus per site. Patients can search by city or postal code to identify the nearest centre that offers their required test, then check whether that test requires an appointment or accepts walk-ins. For imaging tests like CT, PET/CT, and nuclear medicine, pre-booking is required at all locations (WELL Health Diagnostic Centres).

Contact methods

Beyond online booking, patients can call individual locations directly. The contact information for most centres is listed on the locations page, and the Toronto Central Healthline publishes detailed service and contact information for specific Toronto sites including hours and referral requirements (Toronto Central Healthline) (Central East Healthline). For the most up-to-date contact details and hours, checking the specific location’s listing is recommended over relying on general inquiries.

Preparation tips

Before any appointment, patients should confirm they have their Ontario Health Card (or AHCIP card for Alberta patients), their signed requisition form, and a list of current medications if applicable. For certain tests — particularly cardiac stress tests, nuclear medicine, and PET/CT — preparation instructions may include fasting or medication adjustments, which the referring physician should communicate. Comfortable, metal-free clothing is advisable for any imaging appointment. Wheelchair-accessible entrances are available at multiple locations including Brampton and Pickering sites, and free parking is available at select centres such as Brampton Chrysler Drive and Dewside Drive (PocketHealth) (Central East Healthline).

The implication: patients should verify hours and services directly with their intended location, as the table above provides representative data rather than complete real-time information.

“Our 50+ locations in Ontario and Alberta provide OHIP and AHCIP-covered cardiology, radiology, respirology, endocrinology, and sleep diagnostic services with shorter wait times, faster report turn-around, and the highest standard of patient care.”

— WELL Health Diagnostic Centres, Official Website

“WELL Health Diagnostic Centres are the only Integrated Community Health Services Centres in Ontario and Alberta that are Accredited with Exemplary Standing.”

— WELL Health Diagnostic Centres, Official Website

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Frequently asked questions