Dr. Gerald Marx, MD

Dr. Gerald Marx, MD

Pediatric Cardiology  ·  
Male  ·  
Age 68
Dr. Gerald Marx, MD is a pediatric cardiology specialist in Boston, MA and has been practicing for 36 years. He graduated from University of California in 1976 and specializes in pediatric cardiology.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. Marx

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Top Care Areas

See how frequently Dr. Marx performs your care needs compared to other doctors.

Cardiac Imaging
more than 4% of peers

Dr. Marx's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Dr. Marx's bio

This content was provided by Dr. Marx "Dr. Marx has been caring for patients with congenital heart disease since beginning his cardiology fellowship in 1979. This has included the diagnosis and medical and surgical planning and care of the fetus and newborn. He has followed those patients, and evaluated new patients through infancy, childhood, adolescence and adulthood. In addition, Dr. Marx has concentrated on non-invasive imaging, in particular, the application of two and three –dimensional imaging to the care of his patients. Dr. Marx has also focused on the analysis and care of patients with valve abnormalities, in particular the Cone operation for Epstein's disease, and on care of patients with aortic and mitral valve disease. Dr. Marx is also a member of the Boston Children's Hospital committee on bi-ventricular repairs. This group is involved in the selection and medical and surgical treatment and analysis of the outcomes of "bi-ventricular surgery." His particular research has evolved around the application of echocardiography, in particular three-dimensional echocardiography to improve the diagnosis and care of patients with congenital heart disease. This includes evaluating the outcome of specific surgical procedures such as valve repairs and bi-ventricular surgeries."


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Care Philosophy

This content was provided by Dr. Marx "I have had the great pleasure of witnessing my patients who were born with congenital heart disease grow up and become active and engaged adults.  

Many of my patients have gone on to college, have successful employment, and have families of their own. However, despite these wonderful achievements there is still work to be done to improve the quality of life for all of our newborns, children, adolescents and adults with congenital heart disease. Because of the overwhelming courage and perseverance of my patients and their families, it has become truly an honor for me to be part of their lives. I am proud to be part of the Boston Children's cardiology and cardiac surgical team, a team dedicated to enhancing the health and lives of all children with congenital heart disease."


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1  Specialties

  • Pediatric Cardiology

2  Board Certifications

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

12  Conditions Treated

  • Aneurysm
  • Atrial Flutter
  • Autoimmune Diseases
  • Cardiomyopathy
  • Cardiovascular Disease
  • Congenital Heart Defects, Fetal
  • Congenital Heart Defects, Pediatric
  • Fetal Disorders
  • Mitral Valve Stenosis
  • Pediatric Heart Disease
  • Primary Pulmonary Hypertension
  • Vascular Disease

6  Procedures

  • Cardiac Imaging
  • Congenital Heart Surgery
  • Echocardiography
  • Fetal Cardiac Screening
  • Fetal Echocardiography
  • Pediatric Stress Echocardiography (ECG)

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.


  • Ohio Wesleyan University
    Undergraduate School | Graduated 1972
  • University of California
    Medical School | Graduated 1976
  • Boston Children's Hospital
    Internship Hospital | Completed 1977
  • Boston Children's Hospital
    Residency Hospital | Completed 1979
  • Boston Children's Hospital
    Fellowship Hospital | Completed 1982

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Marx has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

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

Dr. Marx's Reviews

Likelihood of recommending Dr. Marx to family and friends
5 total reviews

Likelihood to Recommend (5)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Marx's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes
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