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John Thomson, M.B.B.S., Ph.D.

John Thomson, M.B.B.S., Ph.D.

Headshot of John Thomson
  • Director, Cardiac Catheterization
  • Professor (PAR) of Pediatrics


Aortic Coarctation, Atrial Septal Defects (ASD), Cardiac Catheterization, Cardiovascular Interventions, Congenital Heart Disease, Patent Ductus Arteriosus (PDA), Pediatric Cardiology, Pediatric Congenital Heart Disease, Ventricular Septal Defect more


Dr. Thomson is an interventional cardiologist at Johns Hopkins Children’s Center in Baltimore, Maryland. He serves as director of cardiac catheterization. He is part of the Blalock–Taussig–Thomas Pediatric and Congenital Heart Center.

Dr. Thomson earned his medical degree from the University of Nottingham Medical School. He completed residencies at Leeds Hospital as a resident of pediatric cardiology and The Prince Charles Hospital as a resident of cardiology and general medicine. His fellowship in pediatric cardiology was completed at Leeds General Infirmary.

His specific interests are neonatal palliation and percutaneous valve intervention but his main drive is identifying and answering questions of clinical importance to patients with congenital heart disease. more


  • Director, Cardiac Catheterization
  • Professor (PAR) of Pediatrics

Departments / Divisions



  • BMBS; University of Nottingham Medical School (1993)


  • Pediatric Cardiology; Leeds Hospital (2001)
  • Cardiology and General Medicine; The Prince Charles Hospital (1995)


  • Pediatric Cardiology; Leeds General Infirmary (2003)

Board Certifications

  • Pending/Scheduled (Pediatrics)

Videos & Media

  • Play Video:

    Cardiac Catheterization for Children Q&A

  • Play Video:

    Innovations in Pediatric Congenital Heart Defect Treatment Webinar

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