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Healthcare Practitioners and Technical · Holland code IRS

Cardiologists

Diagnose, treat, manage, and prevent diseases or conditions of the cardiovascular system. May further subspecialize in interventional procedures (e.g., balloon angioplasty and stent placement), echocardiography, or electrophysiology.

O*NET 29-1212.00

At a glance

US median annual pay
$496,010
Middle half earn $274,280 to $610,060. BLS OEWS, May 2025.
Preparation needed
Job Zone 5 of 5
Extensive preparation. Zone 1 is little or none; zone 5 is graduate-level.

What the work involves

The tasks workers in this occupation rate as most important, from the O*NET survey.

  • Administer emergency cardiac care for life-threatening heart problems, such as cardiac arrest and heart attack.
  • Advise patients and community members concerning diet, activity, hygiene, or disease prevention.
  • Answer questions that patients have about their health and well-being.
  • Calculate valve areas from blood flow velocity measurements.
  • Compare measurements of heart wall thickness and chamber sizes to standards to identify abnormalities, using the results of an echocardiogram.
  • Conduct electrocardiogram (EKG), phonocardiogram, echocardiogram, or other cardiovascular tests to record patients' cardiac activity, using specialized electronic test equipment, recording devices, or laboratory instruments.
  • Conduct exercise electrocardiogram tests to monitor cardiovascular activity under stress.
  • Conduct research to develop or test medications, treatments, or procedures that prevent or control disease or injury.

Who tends to enjoy it

How strongly this occupation draws on each of the six Holland interest types, which is the same profile the career interests test compares you against.

  • Realistic66
  • Investigative98
  • Artistic2
  • Social62
  • Enterprising21
  • Conventional50

The same work abroad

Other countries classify jobs differently, so these are the closest matches through the international ISCO-08 standard, not exact equivalents.

European occupation titles (ESCO)

  • physiologist · DE Physiologe/Physiologin · FR physiologiste
  • general practitioner · DE Arzt für Allgemeinmedizin/Ärztin für Allgemeinmedizin · FR médecin généraliste
  • specialised doctor · DE Facharzt/Fachärztin · FR médecin spécialiste
  • nuclear medicine radiographer · DE Medizinisch-technischer Assistent Nuklearmedizin/Medizinisch-technische Assistentin Nuklearmedizin · FR technologue en médecine nucléaire
  • clinical perfusion scientist · DE Fachassistent Herz-Kreislauf-Funktionsdiagnostik/Fachassistentin Herz-Kreislauf-Funktionsdiagnostik · FR perfusionniste clinique
  • biomedical scientist · DE Biomedizintechniker/Biomedizintechnikerin · FR technicien de biologie médicale/technicienne de biologie médicale

Closest UK occupation groups (SOC 2020)

  • Biochemists and biomedical scientists (2113)68,000 employed
  • Generalist medical practitioners (2211)197,900 employed
  • Occupational therapists (2222)56,000 employed

Employment is the UK Annual Population Survey for April 2025 to March 2026, all workers in the group, which can be broader than this one occupation.

Japan

Japan classifies jobs in its own way. The closest category that names the same work is “医師”, which may be narrower or broader than this occupation.

Median monthly pay
¥971,300
Middle half earn ¥666,600 to ¥1,338,000 a month.
Workers in the category
145,170
Regular employees in firms of ten or more.

Scheduled monthly pay before tax, excluding overtime and bonuses, so it is not comparable to the annual figures above. Source: Ministry of Health, Labour and Welfare, Basic Survey on Wage Structure 2025, via e-Stat, under the Japanese Government Standard Terms of Use. The category match was made by hand.

Pay across Europe, for the whole group

Median annual earnings of all employees in “Professionals”. This is the broad ISCO group this occupation falls in, not the occupation itself, so treat it as context for the wage level, not as a salary for this job.

Median annual earnings, Professionals, by country
CountryMedian pay
Belgium€61,714
Germany€59,529
Ireland€56,877
Austria€55,374
Netherlands€53,595
Sweden€43,567
France€41,515
Spain€35,735
Italy€33,649
Portugal€26,072
Poland€14,380

Eurostat Structure of Earnings Survey, businesses with ten or more employees outside public administration, in euro and not adjusted for the cost of living. Reference years differ between sources: the US, Japan and Europe figures on this page come from different survey years, so compare them as rough levels, not to the euro or yen.

Is it a fit for you?

Interest is one input, alongside ability, pay and what is hiring near you. The career interests test takes about thirteen minutes and ranks occupations by how closely their profile matches yours.

Take the career interests test

Occupation data: O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration, used under the CC BY 4.0 license. Values were rounded, tasks limited to the most important eight, and combined with the sources named in each section; O*NET has not reviewed or endorsed this adaptation. Pay and outlook: U.S. Bureau of Labor Statistics. International titles: ESCO, European Commission. UK classification and employment: Office for National Statistics, Open Government Licence.