Expertise in
1
conditions

Dr. Sarah Kollar

Pediatric Cardiology
Children's National Hospital
111 Michigan Ave NW, 
Washington, DC 
10 Years of Experience

Expertise in
1
conditions
Children's National Hospital
111 Michigan Ave NW, 
Washington, DC 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Sarah Kollar is a Pediatric Cardiologist in Washington, Washington, D.c.. Dr. Kollar has been practicing medicine for over 10 years is highly rated in 1 condition, according to our data. Her top areas of expertise are Tetralogy of Fallot, Congenital Cardiovascular Shunt, Congenital Heart Disease (CHD), and Duchenne Muscular Dystrophy.

Her clinical research consists of co-authoring 5 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Graduate Year
2016
Specialties
Pediatric Cardiology
Languages Spoken
English
Gender
Female

Insurance

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

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Accepted insurance plans:

Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D

Locations

Children's National Hospital
111 Michigan Ave NW, Washington, DC 20010
Call: 202-476-2020

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.


5 Total Publications

Shape Variations in RV 3D Geometry Are Associated With Adverse Outcomes in Hypoplastic Left Heart Syndrome Patients: A Fontan Outcomes Registry Using CMR Examination (FORCE) Study.
Shape Variations in RV 3D Geometry Are Associated With Adverse Outcomes in Hypoplastic Left Heart Syndrome Patients: A Fontan Outcomes Registry Using CMR Examination (FORCE) Study.
Journal: Circulation. Cardiovascular imaging
Published: November 05, 2025
View All 5 Publications
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Shelby Kutty is a Pediatric Cardiologist in Baltimore,, Maryland. Dr. Kutty is highly rated in 24 conditions, according to our data. His top areas of expertise are Hypoplastic Left Heart Syndrome (HLHS), Tetralogy of Fallot, Congenital Heart Disease (CHD), Heart Transplant, and Percutaneous Coronary Intervention (PCI).

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Dr. Ashraf S. Harahsheh
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Dr. Ashraf S. Harahsheh
Pediatric Cardiology

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111 Michigan Avenue Northwest, Suite 200, Suite 200, 
Washington, DC 
 (1.0 miles away)
202-467-5000
Languages Spoken:
English, Arabic
See accepted insurances

Dr. Ashraf S. Harahsheh is a pediatric cardiologist affiliated with Sibley Memorial Hospital, George Washington University Hospital, Washington Adventist Hospital, Holy Cross Hospital, Calvert Memorial Hospital and Frederick Memorial Hospital. He practices out of Children’s National Medical Center in Washington, D.C. Dr. Harahsheh has expertise in arrhythmia, cardiology post-natal follow-up, heart murmurs, Kawasaki disease and syncope. He has clinical interest in atrial flutter and fibrillation in children with Wolff-Parkinson-White syndrome, the cardiac function in anthracycline-treated children and the use of B-type natriuretic peptide as a marker for worsening cardiac function. Dr. Harahsheh has been named a Who’s Who in Science and Engineering, one of America’s Top Pediatricians by Consumer’s Research Council of America and a Top 10 Cardiologist by Vitals. Dr. Harahsheh earned his medical degree from University of Jordan. He completed residencies in pediatrics at Children’s Hospital of Michigan, as well as a pediatric cardiology fellowship. Dr. Harahsheh is a member of the American Society of Echocardiography and the American College of Cardiology. Dr. Harahsheh has contributed to numerous publications. Dr. Harahsheh is highly rated in 6 conditions, according to our data. His top areas of expertise are Multisystem Inflammatory Syndrome in Children (MIS-C), Kawasaki Disease, Coronary Artery Aneurysm, Pediatric Myocarditis, and Heart Transplant.

Ari Cedars
Expertise in
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Dr. Ari Cedars
Pediatric Cardiology | Cardiology
Expertise in
14
conditions
Dr. Ari Cedars
Pediatric Cardiology | Cardiology

Johns Hopkins Health Care & Surgery Center — Bethesda

6420 Rockledge Drive, Suite 2300, Suite 2300, 
Bethesda, MD 
 (8.8 miles away)
443-997-5437
Languages Spoken:
English
See accepted insurances

Dr. Ari Cedars is a cardiologist in Baltimore, Maryland. He also serves as director of the Adult Congenital Heart Disease Center at both the Johns Hopkins Heart and Vascular Institute and the Blalock-Taussig-Thomas Pediatric and Congenital Heart Center. Dr. Cedars is an associate professor of medicine and pediatrics at the Johns Hopkins University School of Medicine. Dr. Cedars specializes in adult congenital heart disease. He is a member of the leadership committee for the Advanced Cardiac Therapies Improving Outcomes Network (ACTION), an organization focused on the improvement of outcomes for pediatric ventricular assist device (VAD) patients. He is an administrative board member of the Alliance for Adult Research in Congenital Cardiology (AARCC), a multi-institutional academic research network devoted to producing new research in adult congenital heart disease. He is also a member of the medical advisory board for the Adult Congenital Heart Association (ACHA). Dr. Cedars’ research focuses on patient-centered outcomes, mechanical circulatory support and ventricular assist devices, and the biological mechanisms underlying clinical disease progression in congenital heart disease. Dr. Cedars is highly rated in 14 conditions, according to our data. His top areas of expertise are Congenital Heart Disease (CHD), Tetralogy of Fallot, Heart Attack, Apoplexy, and Heart Transplant.

VIEW MORE Pediatric Cardiologists

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. Kollar's expertise for a condition
ConditionClose
    • Distinguished
    • Tetralogy of Fallot
      Dr. Kollar is
      Distinguished
      . Learn about Tetralogy of Fallot.
      See more Tetralogy of Fallot experts
      • Experienced
      • Becker Muscular Dystrophy
        Dr. Kollar is
        Experienced
        . Learn about Becker Muscular Dystrophy.
        See more Becker Muscular Dystrophy experts
      • Congenital Cardiovascular Shunt
        Dr. Kollar is
        Experienced
        . Learn about Congenital Cardiovascular Shunt.
        See more Congenital Cardiovascular Shunt experts
      • Congenital Heart Disease (CHD)
        Dr. Kollar is
        Experienced
        . Learn about Congenital Heart Disease (CHD).
        See more Congenital Heart Disease (CHD) experts
      • Duchenne Muscular Dystrophy
        Dr. Kollar is
        Experienced
        . Learn about Duchenne Muscular Dystrophy.
        See more Duchenne Muscular Dystrophy experts
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