Dr. Maria S. Horenstein, Pediatric Cardiology


CHOC Specialists, Cardiology
1201 W La Veta Ave
Orange, CA 92868
phone: 714-509-3939
fax: 714-509-3949

Administrative Appointments

Cardiology, CHOC Specialists


  • Medical School
    Universidad Nacional de Cuyo, Mendoza, Argentina
  • Pediatrics Residency
    Beth Israel Medical Center, New York, NY
  • Pediatric Cardiology Fellowship
    Children’s Hospital of Michigan, Detroit, MI
  • Pediatric Cardiac Electrophysiology Fellowship
    Duke University Medical Center, Durham, NC

Our cardiologists commonly treat: 

  • Congenital heart defects
  • Chest pain
  • Heart murmur
  • Family history of heart disease
  • Hypertension, obesity and lipid management
  • Syncope and palpitations
  • Sports cardiology
  • Cardiac genetics
  • Cardiomyopathy
  • Chronic lung disease

  • Maria S Horenstein MD
    • Appointments:
    • Office: 714-509-3939
    • Specialty: Cardiology
    • Board Certified: Pediatric Cardiology
    • Additional Languages: Spanish
    • On Staff at: CHOC Children's Hospital