Dr. James Lock, MD

Dr. James Lock, MD

Pediatric Cardiology  ·  
Male  ·  
Age 68
Dr. James Lock, MD is a pediatric cardiology specialist in Boston, MA and has been practicing for 39 years. He graduated from Stanford University School of Medicine in 1973 and specializes in pediatric cardiology, pediatric critical care medicine, and more.Read his story

300 Longwood Ave

Boston, MA 02115

Contact Information

(617) 355-4278

Insurance Accepted

  • Accepts most major Health Plans. Please contact our office for details.

*Please verify this information when scheduling an appointment.

Learn about Dr. Lock

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Dr. Lock's Experience

Dr. Lock's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Pediatric Cardiology
  • Board certified in Pediatric Cardiology and Pediatrics
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Dr. Lock's bio

This content was provided by Dr. Lock "Dr. James Lock is Cardiologist-in-Chief and Chairman of the Department of Cardiology at Boston Children's Hospital, and the Alexander S. Nadas Professor of Pediatrics at Harvard Medical School. Dr. Lock attended medical school at Stanford University, pursued pediatric residency and cardiology fellowship at the University of Minnesota, and trained in cardiovascular physiology for two years at the University of Toronto, Hospital for Sick Children. Scientific work on pulmonary vascular control was supported by an AHA Established Investigator Award, the March of Dimes (Basil O'Connor Award) and National Institutes of Health (RO1 HL). Dr. Lock shifted his research focus to experimental interventional cardiology, providing most of the basic research in that field. In 1984, he joined Boston Children's Hospital as Director of the Cardiac Catheterization Laboratory, and became Department Chair in 1993. Dr. Lock has invented several cardiac catheterization devices and has developed several dozen new non-surgical procedures to improve care for children with complex heart disease. In September 1999, the CardioSEAL device developed by Dr. Lock and others became the first septal occlusion device to receive FDA approval for use inside the human heart. He has authored or co-authored 250 peer-reviewed scientific papers. He is the president of Boston Children's Heart Foundation, the president of the Aldo Castaneda Foundation, and serves on the Finance Committee Board of Directors of Boston Children's Hospital. During his research career, Dr. Lock has trained nearly a hundred academic physicians in cardiopulmonary physiology, experimental interventional cardiology and clinical interventional cardiology. Beginning five years ago, he and his colleagues started a highly innovative program to standardize clinical care in a fashion that improves outcomes, reduces unnecessary utilization and supports innovation. That program, termed SCAMPs, is now rapidly gaining acceptance throughout the medical community."


Read Less

3  Specialties

  • Pediatric Cardiology
  • Cardiovascular Interventional Technology
  • Pediatric Critical Care Medicine

2  Board Certifications

  • Pediatric Cardiology
    Accredited by: American Board of Pediatrics*
  • Pediatrics
    Accredited by: American Board of Pediatrics*

5  Conditions Treated

  • Atrial Flutter
  • Cardiovascular Disease
  • Congenital Heart Defects, Fetal
  • Pediatric Cardiovascular Disease
  • Pediatric Heart Disease

7  Procedures

  • Cardiac Electrophysiology
  • Cardiac MRI (Magnetic Resonance Imaging) of Heart or Chest
  • Cardiovascular Diagnostic Test
  • Cardioversion, Elective
  • Fetal Cardiac Monitoring
  • Fetal Cardiac Screening
  • Interventional Catheterization

Background Check

0 Malpractice Claims

No malpractice history found for Massachusetts.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Case Western Reserve University
    Undergraduate School | Graduated 1969
  • Stanford University School of Medicine
    Medical School | Graduated 1973
  • University of Minnesota Hospital & Clinics
    Internship Hospital | Completed 1974
  • University of Minnesota Hospital & Clinics
    Residency Hospital | Completed 1975
  • Hospital for Sick Children
    Fellowship Hospital | Completed 1979

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Lock has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Lock does not have any memberships or affiliations listed. If you are Dr. Lock and would like to add memberships or affiliations, please update your profile.

Dr. Lock's Reviews

Likelihood of recommending Dr. Lock to family and friends
4 total reviews

Likelihood to Recommend (4)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Lock's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    16 to 30 minutes
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