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4 Best Cardiologist Center in Sydney (2026)

Independently ranked by our review of ratings, reviews and reputation · How we chose

Elara Kestrel
By Elara Kestrel, Health and Medical Expert · ✓ Data verified July 2026 · 7 min read

Your GP has referred you to a cardiologist, and the referral letter doesn't tell you which one is actually good at explaining what's happening with your heart. Every cardiologist center in Sydney on this page has fewer than 21 Google reviews, just 78 between them, which is normal for a specialty patients rarely think to review. What's there still points to who explains things well and who doesn't.

Short answer: Heart Rhythm Centre and Dr Rajan Rehan's One Heart Centre both hold perfect 5.0 ratings, at 21 and 19 reviews respectively, the smallest but cleanest samples on this page. Professor Cameron Holloway (4.8, 20 reviews) and Roy Cardiology (4.6, 18 reviews) round out a genuinely small dataset, so read the individual reviews closely rather than leaning on the star rating alone.
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How Sydney's cardiology practices compare

# Business Rating Reviews Best for
1 Heart Rhythm Centre 5.0 ★ 21 Arrhythmia and ablation specialists View ›
2 Dr Rajan Rehan — Interventional Cardiologist | Sydney 5.0 ★ 19 Multidisciplinary cardiology, bulk billing View ›
3 Cameron Holloway 4.8 ★ 20 Diagnostic depth, pre-surgical assessment View ›
4 Roy Cardiology 4.6 ★ 18 Minimally invasive valve surgery and regional outreach View ›
4 Best Cardiologist Center in Sydney (2026)

Our picks, reviewed

Heart Rhythm Centre logo
#1 Overall🕑 Open 5 days/wk

Heart Rhythm Centre

5.021 Google reviews

Heart Rhythm Centre, in Newtown, is a specialist practice built specifically around arrhythmias, abnormal heart rhythms, rather than general cardiology. The practice's own site states its doctors hold appointments at Sydney University, each with postgraduate qualifications including a PhD in Medicine, and lists affiliations with Royal Prince Alfred, Prince of Wales, Mater and St George Private hospitals. Reviewers describe Professor McGuire performing ablations for SVT and atrial fibrillation, including newer pulsed field ablation, with one reviewer, a former Olympic rower, back to full activity afterward. It holds a perfect 5.0 across 21 reviews.

What people praise

  • Reviewers describe successful ablations after previous procedures elsewhere hadn't worked
  • Professor McGuire gets specific praise for personal follow-up, including a reviewer contacted directly on a Sunday about medication
  • The practice's own site lists hospital affiliations across several major Sydney hospitals

Worth knowing

  • The smallest review count on this page, so the sample is thin even though every review here is five stars
Reputation scorecardrank in Sydney
Rating5 / 5
Review volume21 · 77th
Confidenceearly
Recency9 months ago
Info completenesssite · phone · hours
Rating breakdown100% 5-star
✓ VerifiedSource: Google

Our take: A perfect rating, but on a small enough review base that we'd call it promising rather than proven. Worth it specifically if arrhythmia, not general heart health, is the issue.

Website+61295195922 Directions

204/100 Carillon Ave, Newtown NSW 2042

Dr Rajan Rehan — Interventional Cardiologist | Sydney logo
#2🕑 Open 5 days/wk

Dr Rajan Rehan — Interventional Cardiologist | Sydney

5.019 Google reviews

One Heart Centre, where Dr Rajan Rehan practises interventional cardiology, is a multidisciplinary practice with locations in North Sydney, Bella Vista and Matraville. The practice's own site describes fellowship-trained subspecialists covering the full range of cardiovascular conditions, from diagnosis through treatment. Reviewers describe Dr Rehan identifying an artery blockage via stress test in a 43-year-old patient with few symptoms, leading to bypass surgery, and note the practice bulk-bills under Medicare. It holds a perfect 5.0 across 19 reviews.

What people praise

  • Reviewers describe clear, reassuring explanations of test results and diagnosis
  • One reviewer credits an early stress test with catching a serious blockage before it became an emergency
  • Reviewers note the practice bulk-bills, reducing out-of-pocket cost for Medicare-eligible patients

Worth knowing

  • Smallest review count alongside Heart Rhythm Centre, so treat the perfect rating as an early, promising signal rather than a large-sample guarantee
Reputation scorecardrank in Sydney
Rating5 / 5
Review volume19 · 59th
Confidenceearly
Recency3 weeks ago
Info completenesssite · phone · hours
Rating breakdown100% 5-star
✓ VerifiedSource: Google

Our take: Matches the top rating on this page on a similarly small review base. The bulk-billing option is a genuine point of difference worth confirming directly.

Website+61291145151 Directions

LG02, 71 Walker St, North Sydney NSW 2060

Cameron Holloway logo
#3

Cameron Holloway

4.820 Google reviews

Professor Cameron Holloway practises cardiology at NSW Cardiology, with consulting rooms at St Vincent's Private Hospital, Sydney CBD and Paddington. Reviewers describe him providing pre-surgical heart assessments ahead of operations at St Vincent's, and one reviewer credits him with correctly identifying that a drug reaction, not a cardiac issue, was causing persistent heart palpitations after other doctors had dismissed the symptoms. It holds a 4.8 rating across 20 reviews.

What people praise

  • Reviewers describe him taking time to listen carefully despite a busy schedule
  • One reviewer credits him with an unusual diagnosis that resolved persistent, frightening palpitations within days
  • Long-standing patients describe years of consistent, trusted care ahead of major procedures

Worth knowing

  • The practice's public listing has limited information beyond a contact page, so confirm current consulting hours and locations by phone
Reputation scorecardrank in Sydney
Rating4.8 / 5
Review volume20 · 68th
Confidenceearly
Recency9 months ago
Info completenesssite · phone
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: A strong rating built on detailed, specific reviews about diagnostic skill. The thin public profile beyond patient reviews means it's worth calling ahead to confirm logistics.

Website+61280381080 Directions

St Vincent's private hospital, 406 Victoria St, Darlinghurst NSW 2010

Roy Cardiology logo
#4🕑 Open 5 days/wk

Roy Cardiology

4.618 Google reviews

Roy Cardiology is a family cardiology practice established in 1980, now run by David and Andrew Roy, serving Sydney as well as rural NSW and the wider Australia-Pacific region. The practice's own site describes it as a leader in transcatheter aortic valve implantation (TAVI), a minimally invasive alternative to open heart valve surgery. Reviewers describe TAVI procedures for elderly family members and bulk-billed rural outreach clinics. It holds a 4.6 rating across 18 reviews.

What people praise

  • Reviewers describe successful TAVI heart valve procedures for elderly patients, with good recovery outcomes reported
  • The practice runs bulk-billed Outreach Heart Failure Diagnostic clinics for patients in regional NSW, reducing travel and cost
  • Multiple reviewers describe being patients for a decade or more across both generations of the practice

Worth knowing

  • As with any long-running, multi-doctor family practice, continuity with one specific doctor isn't guaranteed as the practice changes hands generationally
Reputation scorecardrank in Sydney
Rating4.6 / 5
Review volume18 · 50th
Confidenceearly
Recency7 months ago
Info completenesssite · phone · hours
Rating breakdown89% 5-star
✓ VerifiedSource: Google

Our take: The lowest rating of the four here, though still solid, and the only practice on this page built specifically around minimally invasive valve surgery and regional outreach care.

Website+61283826811 Directions

438 Victoria St, Darlinghurst NSW 2010

5

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Health information disclaimer: This directory is informational only and not medical advice. Rankings reflect publicly available Google ratings and review volume, not clinical outcomes. Verify any practitioner’s credentials and registration with the relevant medical board before booking.

How we scored these cardiologists

We pulled live Google ratings and review counts for cardiology practices serving Sydney, then ranked on rating, review volume, and the share of five-star reviews. Specialist cardiologists get far fewer public reviews than general practices, so every practice on this page falls into an early confidence band, even the perfect scores. No practice can pay to move up this list.

What does a cardiologist visit cost in Sydney? (2026)

Cost depends heavily on whether a visit is billed through Medicare, a private health fund, or paid out of pocket, and whether it’s a first consultation, ongoing monitoring, or a procedure like an ablation or TAVI. Reviewers at One Heart Centre and Roy Cardiology mention bulk billing being available. None of the four publish a flat consultation fee, so confirm the billing arrangement, and whether you need a GP referral, before you book.

Cardiologists across Sydney

These practices are spread further across Sydney than most categories on this site: Newtown, North Sydney, Bella Vista, Matraville, Darlinghurst, the CBD and Paddington, with Roy Cardiology also running outreach clinics into regional NSW. Most cardiology visits need a GP referral, so check that first regardless of which practice you call.

What to ask before you see a cardiologist

  • Do I need a GP referral, and will it affect my Medicare rebate?
  • Is bulk billing available, or what’s the expected out-of-pocket cost?
  • What specific tests or monitoring will the first visit include?
  • If a procedure is recommended, how many times has this cardiologist performed it?
  • What’s the plan for ongoing monitoring after diagnosis or treatment?
  • Who do I contact between appointments if symptoms change?

Frequently asked questions

Are these rankings paid?

No. Rankings come from public Google data. A business can pay to be a Featured Partner (badge and top placement), but that never changes another business’s score or position.

How did you choose these cardiologists?

We compared cardiology practices serving Sydney on live Google ratings, review volume, and the share of five-star reviews. We didn’t consult any of them ourselves; we relied on public patient data and each practice’s own published information.

How often is this updated?

We refreshed this ranking in July 2026 and recheck it periodically as new reviews come in.

Why do these cardiologists have so few reviews compared to a dentist or GP?

Patients see specialists less often, and leave public reviews less often, than they do for a family dentist or GP, so review volume across this whole category is naturally much lower. We factor that into our confidence scoring rather than treating a small sample the same as a large one.

Do I need a referral to see a cardiologist in Sydney?

Almost always, yes. Most cardiology visits are referred by a GP, and a valid referral usually affects your Medicare rebate, so confirm this with your GP before booking.

The bottom line

Heart Rhythm Centre and One Heart Centre both carry perfect ratings on a small but clean sample, and are worth calling first if arrhythmia or a specific intervention is the concern. Whichever practice you choose, confirm you have the right referral in hand, since nearly every cardiology visit in Sydney needs one.

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