Photo of Oscar J. Benavidez, MD

Oscar J. Benavidez, MD

  • Chief, Division of Pediatric Cardiology


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Centers & Specialties

MassGeneral Hospital for Children

Clinical Interests
  • Congenital Cardiac MRI
  • Fetal Cardiology
  • Pediatric cardiology
  • Echocardiography
  • Cardiology
  • Congenital heart disease
Medical Education
  • MD, Harvard Medical School
  • Residency, Boston Children's Hospital
  • Fellowship, Boston Children's Hospital
Board Certifications
  • Pediatrics
  • Pediatric Cardiology
Foreign Languages
  • Spanish
  • Boston: Massachusetts General Hospital
  • Braintree: Blue Hills Medical Center
  • Newton: Newton-Wellesley Hospital
Existing Patients
Patient Gateway
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Connecticut
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group
Provider Gender


Dr. Oscar J. Benavidez, MD/MPP is the Division Chief of Pediatric/Congenital Cardiology and the Medical Director of the Pediatric Cardiac Catheterization and Surgical Programs. Dr. Benavidez is also the Director of Diversity and Equity at the MassGeneral Hospital for Children.

His clinical area of expertise is in Non-Invasive Congenital Cardiac Imaging from fetus to adult patients with congenital heart disease. Dr. Benavidez is involved in health services research and has published on topics related to patient safety and quality as it pertains to the care of patients with congenital heart disease. He is also on national committees that develop and implement quality measures.

Research & Publications

Research Summary

My body of health services research includes examination of patient risk factors for adverse clinical events such as inpatient mortality, complications, and diagnostic error. I have published in this area and have received multiple grants for my work. This work in many ways was my field’s first systematic attempt in examining unwanted patient events such as complications following congenital heart surgery. This work lead to my being included as part of an international surgical society to help define and create the taxonomy for congenital heart centers to use to track complications in this patient population. I also developed the first taxonomy for categorizing diagnostic errors in the echocardiography assessment of congenital heart disease. This work has lead to multiple successful grant applications and my inclusion in national cardiology societies including the American Society of Echocardiography and the American College of Cardiology working groups in quality to help define quality in diagnostic cardiac imaging for the field.


View my most recent publications at PubMed

Benavidez O, Gauvreau K, del Nido P, Bacha E, Jenkins K. Complications and risk factors for mortality during congenital heart surgery admissions. The Annals of Thoracic Surgery 2007

Benavidez O, Gauvreau K, Jenkins KJ, Geva T. Diagnostic errors in pediatric echocardiography: Development of taxonomy and identification of risk factors.Circulation. 2008

Flannery LD, Fahed AC, DeFaria Yeh D, Youniss MA, Barinsky GL, Stefanescu Schmidt AC, Benavidez OJ, Meigs JB, Bhatt AB. Frequency of Guideline-Based Statin Therapy in Adults With Congenital Heart Disease. Am J Cardiol. 2017 Nov 23

Kim Y. Gauvreau K, Bacha E, Landzberg M, Benavidez, O. Resource Use Among Adult Congenital Heart Surgery Admissions in Pediatric Hospitals: Risk Factors for High Resource Utilization and Association with Inpatient Death. Circulation: Cardiovascular Quality and Outcomes 2011

News & Events


Pediatric Cardiology
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-726-3826
Fax: 617-726-2049
Mass General Hospital for Children at Newton Wellesley Hospital
6 South - Pediatric Sub-specialty Clinic
2014 Washington Street
Newton, MA 02462
Mass General Hospital for Children - Braintree
340 Wood Road
Suite 204
Braintree, MA 02184
Phone: 781-884-6900
Fax: 781-884-6999

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