
Overview
Dr. Jennifer B. O'Neil completed her undergraduate education in biology at Pennsylvania State University and earned her medical degree at Wright State Boonshoft School of Medicine in Dayton, OH. She then completed pediatric residency training at Children's National Medical Center prior to completing a pediatric cardiology fellowship at Emory University/Children's Healthcare of Atlanta. She started practicing pediatric cardiology in Virginia and Maryland in 2011. Her clinical interests include fetal cardiology, outpatient management of complex congenital heart disease and preventive care. She serves as the Associate Director of Inova Fairfax Hospital’s single ventricle program. Dr. O'Neil also is actively involved with resident education at Inova Fairfax Hospital and has faculty appointment at the University of Virginia School of Medicine, participating in medical student education. In her free time, Dr. O'Neil enjoys exercising, biking, cooking, watching movies, and exploring the outdoors and Washington, DC, area with her husband and two girls.
Graduate Institution
Residency
Specialties
Licenses
Fellowships
Hospital Affiliations
Languages Spoken
Gender
Awards
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- POS
- HMO
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- PPO
- EPO
- HMO
- POS
- PPO
Locations
8260 Willow Oaks Corporate Dr, 400 And 625, Fairfax, VA 22031
14955 Shady Grove Rd, 150, Rockville, MD 20850
1475 Taney Ave, 101, Frederick, MD 21702
Johns Hopkins Children's Center
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).
Johns Hopkins Health Care & Surgery Center — Bethesda
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.
CNMC Cardiology Dept
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.
Frequently Asked Questions about Dr. Jennifer B. O'neil
How do I make an appointment with Dr. Jennifer B. O'neil?
You can book an appointment with Dr. Jennifer B. O'neil by calling their office at 703-573-0504. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Does Dr. Jennifer B. O'neil accept my insurance?
Dr. Jennifer B. O'neil accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 703-573-0504 to verify that your specific plan is currently accepted before your visit.
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
We do not have enough information to identify the Areas of Expertise for this provider.

