List of Cardiologists in Ontario
Ontario has 255 cardiologists in this dataset, last verified September 9, 2026. That is 63% of all cardiologists in Canada.
Email reach in Ontario runs above the national rate: 88 cardiologists (34.5%) include an email address, against 28.5% across Canada. 246 (96.5%) list a phone number, and 88 carry both.
80% of cardiologists in Ontario have a website, above the national average of 65.3%. Only 51 lack a site, so pitch redesigns and SEO rather than first-time builds.
Among the 224 rated cardiologists in Ontario, 45% hold a 5-star average, in line with the national figure of 46%. 27 are rated 1 to 2 stars (12% of rated businesses, above the national 10%), a natural shortlist for reputation management and review software.
Social Media Reach
50
37
33
20
YouTube
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Cardiologists List in Ontario
Browse a random sample of 15 records — see the exact fields and data quality before you download.
| LOGO | Business Name | Address | City | State | Country | Phone | Website | Reviews | Rating | FB | IG | LI | YT | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Dr. Suzanne Renner | Address | Kitchener | Ontario | Canada | Email | Phone | — | 0 | 0 | — | — | — | — | |
 | Dr. Jaffer Syed | Address | Waterloo | Ontario | Canada | Email | Phone | 7 | 5 | — | — | — | — | ||
 | Lubdub Clinic | Address | Amherstburg | Ontario | Canada | Email | Phone | 4 | 4.3 | — | — | — | — | ||
The Heart Care Diagnostic Centre | Address | Richmond Hill | Ontario | Canada | Email | Phone | — | 32 | 5 | — | — | — | — | ||
John N. Reesor, MD | Address | Peterborough | Ontario | Canada | Email | Phone | — | 4 | 5 | — | — | — | — | ||
 | Jack Nathan Health Brampton - Walk-In + Telemedicine Clinic | Address | Brampton | Ontario | Canada | Email | Phone | 21 | 4.1 | — | |||||
Knutson C W MD | Address | Peterborough | Ontario | Canada | Email | Phone | 6 | 5 | — | — | — | — | |||
 | Dr. Michael Theal | Address | Waterloo | Ontario | Canada | Email | Phone | 0 | 0 | — | — | — | — | ||
 | Global Cardiology | Address | Nepean | Ontario | Canada | Email | Phone | 26 | 4.7 | — | — | — | — | ||
 | Dr. Bradley J Dibble | Address | Barrie | Ontario | Canada | Email | Phone | 5 | 5 | — | — | — | — | ||
Dr. Syed Samir Najib, MD | Address | Toronto | Ontario | Canada | Email | Phone | 1 | 5 | |||||||
 | Cardio-Care Heart Institute | Address | Sarnia | Ontario | Canada | Email | Phone | 31 | 4 | — | — | — | — | ||
 | Noble Medical and Diagnostics | Address | Richmond Hill | Ontario | Canada | Email | Phone | 145 | 4 | — | — | — | — | ||
 | Georgina Cardiology | Address | Keswick | Ontario | Canada | Email | Phone | 1 | 5 | — | — | — | — | ||
 | Medi-Share Cardiology Services | Address | Lindsay | Ontario | Canada | Email | Phone | — | 2 | 5 | — | — | — | — |
This is a randomized preview — the full database contains 255 records with complete field coverage.
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255 verified records — emails, phones, social profiles and more. One-time payment, instant download.
What You Can Do with the List of Cardiologists in Ontario
This list is built for teams that sell to cardiologists: medical supply distributors, practice software vendors, billing services and healthcare staffing agencies. It covers 255 cardiologists in Ontario, with the fields to call, email, segment and map them.
Who Sells to Cardiologists in Ontario
Each of these buyers can work the 255 businesses in this list as a pipeline for a different product:
- Medical and dental supply distributors: Open accounts with the 255 cardiologists in Ontario for consumables, instruments and equipment.
- Practice management and EHR software: Pitch scheduling, patient records and billing systems to independent practices.
- Medical billing and credentialing services: Offer to take claims, coding and payer enrollment off the front desk.
- Healthcare staffing agencies: Place nurses, medical assistants and front-office staff.
Phone, Contact Form and Email Outreach in Ontario
Start with the 88 records that list both a phone number and an email address, then widen out channel by channel:
- Cold calling (246): 96.5% of records include a phone number for call campaigns, appointment setting and follow-ups.
- Website contact forms (90): businesses with a contact page URL give you another way in when no email is listed.
- Email sequences (88): 34.5% of records include an email address, enough to run a dedicated cold email campaign alongside calls.
- CRM import: CSV and Excel files load into HubSpot, Salesforce, Zoho or Pipedrive, with city, state and postal code columns for assigning leads to reps.
Prospect Segments for Agencies in Ontario
Filter the website, rating and social columns to pull the cardiologists that fit a specific service before you pitch:
- No website listed (51): 20% of cardiologists in Ontario have no website on record, a direct prospect list for web designers and local SEO agencies.
- Rated 1 to 2 stars (27): businesses with poor Google ratings, prospects for reputation management and review generation services.
- No Facebook page (205): 80% have no Facebook page on record, an opening for social media management agencies.
Prioritize Cities Across Ontario
Rank areas inside Ontario by record count before sending reps out:
- Postal code patches: records include postal codes, so each rep can get a compact patch with no overlapping accounts.
- Route planning: records include latitude and longitude, so you can map accounts and plan visit days around clusters.
Data Coverage for Cardiologists in Ontario
255 records · verified September 9, 2026
- Phone numbers
- 246
- Email addresses
- 88
- Phone and email
- 88
- Websites
- 204
Google ratings· 224 rated (88%)
45% hold 5 stars
- 1-star rated
- 7
- 3.1% of rated
- 2-star rated
- 20
- 8.9% of rated
- 3-star rated
- 48
- 21.4% of rated
- 4-star rated
- 49
- 21.9% of rated
- 5-star rated
- 100
- 44.6% of rated
Social profiles:
- Facebook:50· 19.6%
- Instagram:37· 14.5%
- X (Twitter):33· 12.9%
- LinkedIn:33· 12.9%
- YouTube:20· 7.8%
Cardiologists in Ontario are a mixed-channel market: 96.5% list a phone number and 34.5% publish an email. Among 224 rated cardiologists, 45% hold 5 stars, a more even spread, so ratings separate businesses meaningfully.
Frequently asked questions about Cardiologists in Ontario
Everything you need to know about our cardiologists database for Ontario: data quality, coverage, freshness, pricing, and formats. Last updated September 9, 2026.
How many Cardiologists are there in Ontario?
There are 255 cardiologists in Ontario in our verified database, as of September 9, 2026.
This covers independent operators, regional chains, and enterprise-scale businesses, across every city in Ontario, for sales prospecting, competitive research, and territory planning.
How up to date is the Cardiologists data for Ontario?
This dataset was last updated in September 9, 2026.
Business contact data decays at roughly 2–3% per month as businesses close, move, or change details, so we re-verify our most-purchased datasets on a rolling basis.
Every file is also run through email verification before delivery, and past buyers are offered discounted refreshed versions as updates ship.
What fields are included in the Cardiologists database for Ontario?
Each record can include: business name, full address, phone number, email address, website URL, social profiles (LinkedIn, Facebook, Instagram, YouTube, X), review ratings, and category details, plus contact-page URLs where available.
Field coverage varies by record; the counts below and the free sample show you exactly what to expect before buying.
Where can I buy verified market intelligence data for Cardiologists businesses in Ontario?
InfiniteLeadsHub provides verified market intelligence datasets for cardiologists businesses in Ontario as a one-time purchase with no subscription.
Ideal for market research, sales planning, and business development.
How much does the Cardiologists database for Ontario cost?
The complete cardiologists leads database for Ontario costs $10 as a one-time payment.
You get instant access to all 255 records with no recurring fees, no per-record charges, and no seat limits.
It is a cost-effective alternative to subscription platforms that charge monthly for the same public business data.
Is this a cheaper alternative to subscription lead databases like ZoomInfo or Apollo?
Yes. For teams that need cardiologists contacts in Ontario specifically, a one-time $10 file is usually far cheaper than subscription platforms, which typically charge thousands of dollars per year with contracts and per-seat pricing.
Subscriptions make sense for large sales teams needing continuous multi-industry access; a one-time targeted list makes sense when you know exactly which niche and geography you're selling into.
Can I preview a sample of the Cardiologists data before buying?
Yes. A free sample dataset is available so you can evaluate data quality, field coverage, and format before purchasing.
The sample is a representative slice of the full Ontario cardiologists database, including contact fields, social profiles, and ratings data.
How do I download the Cardiologists list, and what file formats are available?
You get instant access after purchase. Files are delivered in CSV and Excel (XLSX) formats.
CSV and Excel import directly into CRMs like Salesforce, HubSpot, and Zoho and into any email platform.
How many Cardiologists in Ontario have phone numbers?
246 cardiologists in Ontario (96% of the database) include a phone number.
That makes the dataset effective for cold calling, telemarketing, and appointment setting campaigns.
How many Cardiologists in Ontario have email addresses?
88 cardiologists in Ontario (35%) include an email address.
Email remains one of the highest-ROI B2B outreach channels, making this subset ideal for cold email sequences, product announcements, and drip campaigns.
How many Cardiologists in Ontario have both a phone number and an email address?
88 cardiologists in Ontario have both a phone number and an email address.
Dual-contact records enable multi-channel outreach: combining calls with email follow-ups measurably improves response rates.
How many Cardiologists in Ontario are active on social media?
Social profile coverage for cardiologists in Ontario: 33 on LinkedIn, 50 on Facebook, 37 on Instagram, 20 on YouTube, 33 on X (Twitter).
Social presence signals digitally engaged businesses, which is useful for agencies pitching social media services, ad platforms building audiences, and vendors targeting digitally mature prospects.
How many Cardiologists in Ontario have a website?
204 cardiologists in Ontario (80%) have an active business website.
That is an indicator of digital maturity, and an ideal segment for SEO agencies, hosting providers, and SaaS platforms.
How many Cardiologists in Ontario do not have a website?
51 cardiologists in Ontario operate without a business website.
These are high-intent, overlooked prospects for web design agencies, local SEO providers, and Google Business optimization services.
What are the review ratings of Cardiologists in Ontario?
Rating breakdown for cardiologists in Ontario: 100 with a 5-star rating, 49 with a 4-star rating, 48 with a 3-star rating, 20 with a 2-star rating, 7 with a 1-star rating.
Top-rated businesses suit premium services and partnership proposals; lower-rated businesses are receptive prospects for reputation management, review tools, and operational software.
Can I get Cardiologists data for other states or the entire US?
Yes. The national Cardiologists database covers all 50 US states, and individual state and major-city lists are also available.
If you buy Ontario first, contact us and we'll credit your purchase toward the national upgrade.
Most multi-state buyers save money going national.
Is the Cardiologists contact data in Ontario legal to use for B2B outreach?
Yes. All data is sourced exclusively from publicly available information: Google Business listings, company websites, social media profiles, and public business directories.
This is business contact information, not personal consumer data, making it appropriate for B2B prospecting.
We recommend following applicable regulations such as CAN-SPAM (US), CASL (Canada), and GDPR (EU-targeted campaigns) so your outreach remains fully compliant.