Experienced in Fainting

Dr. William Orr

Pediatric Cardiology
Office
20 Progress Point Pkwy Bldg 1, 
O Fallon,, MO 
Experienced in Fainting
Office
20 Progress Point Pkwy Bldg 1, 
O Fallon,, MO 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

William Orr is a Pediatric Cardiologist in O Fallon,, Missouri. Dr. Orr is rated as an Experienced provider by MediFind in the treatment of Fainting. His top areas of expertise are Multisystem Inflammatory Syndrome in Children (MIS-C), Kawasaki Disease, Myocarditis, and Double Aortic Arch.

His clinical research consists of co-authoring 29 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 2 articles in the study of Fainting.

Specialties
Pediatric Cardiology
Licenses
Pediatrics in MO
Hospital Affiliations
St Louis Childrens Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Cox Health
  • EPO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID

Locations

Office
20 Progress Point Pkwy Bldg 1, O Fallon,, MO 63368
Call: 314-454-6095
Other Locations
Office
1 Childrens Pl Ste 2D, Saint Louis,, MO 63110
Call: 314-454-6095

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

29 Total Publications

Holter Monitor QT Dispersion and QTc-Dispersion in Pediatric Long QT Syndrome and Development of a Diagnostic and Arrhythmia Risk Prediction Model.
Holter Monitor QT Dispersion and QTc-Dispersion in Pediatric Long QT Syndrome and Development of a Diagnostic and Arrhythmia Risk Prediction Model.
Journal: Journal of the American Heart Association
Published: December 03, 2025
View All 29 Publications
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Jessie Hu is a Pediatric Cardiologist in Saint Louis, Missouri. Dr. Hu is rated as an Experienced provider by MediFind in the treatment of Fainting. Her top areas of expertise are Patent Ductus Arteriosus, Ventricular Septal Defects, Heart Murmurs, and Bicuspid Aortic Valve.

VIEW MORE FAINTING DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Orr's expertise for a condition
ConditionClose
    • Distinguished
    • Multisystem Inflammatory Syndrome in Children (MIS-C)
      Dr. Orr is
      Distinguished
      . Learn about Multisystem Inflammatory Syndrome in Children (MIS-C).
      See more Multisystem Inflammatory Syndrome in Children (MIS-C) experts
    • Advanced
    • Kawasaki Disease
      Dr. Orr is
      Advanced
      . Learn about Kawasaki Disease.
      See more Kawasaki Disease experts
    • Experienced
    • Cardiomyopathy
      Dr. Orr is
      Experienced
      . Learn about Cardiomyopathy.
      See more Cardiomyopathy experts
    • Congenital Heart Disease (CHD)
      Dr. Orr is
      Experienced
      . Learn about Congenital Heart Disease (CHD).
      See more Congenital Heart Disease (CHD) experts
    • Double Aortic Arch
      Dr. Orr is
      Experienced
      . Learn about Double Aortic Arch.
      See more Double Aortic Arch experts
    • Fainting
      Dr. Orr is
      Experienced
      . Learn about Fainting.
      See more Fainting experts
    • Infantile Neutropenia
      Dr. Orr is
      Experienced
      . Learn about Infantile Neutropenia.
      See more Infantile Neutropenia experts
    • Myocarditis
      Dr. Orr is
      Experienced
      . Learn about Myocarditis.
      See more Myocarditis experts
    View All 8 Experienced Conditions
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