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Photo of Dr. William Ravekes

William John Ravekes, M.D.

Medical Director for Pediatric Heart Transplant
Assistant Professor of Pediatrics


Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Medical Director for Pediatric Heart Transplant
  • Assistant Professor of Pediatrics

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 410-955-6666

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-955-5987

Johns Hopkins Community Physicians - Odenton

Appointment Phone: 410-874-1400

1132 Annapolis Road
Odenton, MD 21113 map
Phone: 410-874-1400


Pediatric Cardiology

Research Interests

Fetal echocardiography


Dr. William J. Ravekes is an assistant professor of pediatrics at the Johns Hopkins University School of Medicine. A pediatric cardiologist, Dr. Ravekes specializes in fetal echocardiography and the perioperative and intensive care of fetuses, infants, children and adults with congenital heart disease. He also serves as medical director of the Pediatric Heart Transplant Program.

Dr. Ravekes earned his medical degree at the George Washington University School of Medicine. He completed a pediatrics residency at Lucile Salter Packard Children's Hospital at Stanford and a fellowship in pediatric cardiology at Boston Children’s Hospital. He served on the faculty of Texas Children’s Hospital prior to joining Johns Hopkins.

He is certified by the National Board of Medical Examiners, the American Board of Pediatrics and the American Board of Pediatrics Sub-Board in Cardiology.

His primary research interest is fetal echocardiography. He has published more than 50 scholarly articles. more

    Additional Information

  • Education +


    • George Washington University School of Medicine / MD (1992)


    • American Board of Pediatrics / Pediatric Cardiology (2000)
  • Research & Publications +

    Clinical Trials:

    Allogeneic hMSC Injection in Patients with Hypoplastic Left Heart Syndrome (ELPIS)

    Selected Publications View all on PubMed

    Koestenberger M, Nage B, Ravekes W, Avian A, Burmas A, Grangl G, Cvirn G, Gamillscheg A. "Right Ventricular Outflow Tract Velocity Time Integral Determination in 570 Healthy Children and in 52 Pediatric Atrial Septal Defect Patients." Pediatr Cardiol. 2015 Mar 6. [Epub ahead of print]

    Koestenberger M, Pansy J, Ravekes W. "Isovolumic acceleration measurement at the lateral tricuspid annulus: a promising parameter in pediatric right heart function determination." Echocardiography. 2015 Mar;32(3):610. doi: 10.1111/echo.12818. No abstract available.

    Lacro RV, Dietz HC, Sleeper LA, Yetman AT, Bradley TJ, Colan SD, Pearson GD, Selamet Tierney ES, Levine JC, Atz AM, Benson DW, Braverman AC, Chen S, De Backer J, Gelb BD, Grossfeld PD, Klein GL, Lai WW, Liou A, Loeys BL, Markham LW, Olson AK, Paridon SM, Pemberton VL, Pierpont ME, Pyeritz RE, Radojewski E, Roman MJ, Sharkey AM, Stylianou MP, Wechsler SB, Young LT, Mahony L; Pediatric Heart Network Investigators. "Atenolol versus losartan in children and young adults with Marfan's syndrome." N Engl J Med. 2014 Nov 27;371(22):2061-71. doi: 10.1056/NEJMoa1404731. Epub 2014 Nov 18.

    Koestenberger M, Nagel B, Ravekes W, Avian A, Cvirn G, Rehak T, Gamillscheg A. "Reference values of the mitral annular peak systolic velocity (Sm) in 690 healthy pediatric patients, calculation of Z-score values, and comparison to the mitral annular Plane systolic excursion (MAPSE)." Echocardiography. 2014 Oct;31(9):1122-30. doi: 10.1111/echo.12541. Epub 2014 Feb 7.

    Koestenberger M, Nagel B, Ravekes W, Avian A, Burmas A, Grangl G, Cvirn G, Gamillscheg A. "Reference values and calculation of z-scores of echocardiographic measurements of the normal pediatric right ventricle." Am J Cardiol. 2014 Nov 15;114(10):1590-8. doi: 10.1016/j.amjcard.2014.08.028. Epub 2014 Aug 27.

  • Academic Affiliations & Courses +
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